Pub Date : 2023-06-29DOI: 10.36023/ujrs.2023.10.2.228
Людмила Павлівна Ліщенко
Метою роботи є демонстрація можливостей застосування багаторічних рядів супутникових даних для дослідження та аналізу окремої самоорганізованої геосистеми локального рівня для визначення тенденцій і змін, що відбуваються в екосистемах на регіональному рівні. За приклад взята ділянка, що зазнає швидкоплинних змін під дією природних та антропогенних чинників, а саме невелика південно степова ділянка рукотворного лісового масиву «Матвіївський ліс» поблизу м. Миколаїв, що розташована на лівобережжі р. Південний Буг. Для аналізу використаний багаторічний ряд багатозональних даних місії Landsat (за період в 32 роки) та Sentinel-2 останніх років за якими встановлюються залежності, що існують між станом геосистеми, температурою поверхні (LST) та рослинністю. Визначено, що показники вегетаційного індексу NDVI та LST знаходяться в протифазі. Але кореляційні залежності між ними становлять лише 0,56, тому що на локальному рівні існують інші чинники, такі як зволоженість грунту, форма рельєфу, стан погоди на час зйомки, що впливають на обраховані показники. За даними Sentinel-2 простежені та закартовані зміни, що відбуваються – порушення геологічного середовища через стихійне видобування піску, зменшення насаджень внаслідок лісових пожеж, природна саморегуляція та відновлення рослинного покриву в геосистемі після припинення видобування піску та завдяки висадженню нових масивів дерев. Дана геосистема зазнає постійних трансформацій у часі і просторі, є нестабільною і сильно змінюваною, але завдяки природоохоронним заходам зберігає свої рекреаційні і відновлювальні функції. Багатовимірна інформація найкраще відображається та аналізується за допомогою профілів-трансект, що різнобічно характеризують геосистему «Матвіївський ліс», а саме геологічне середовище, рослинність, теплові характеристики поверхні, часову та просторову мінливість стану земного покриву, а також в подальшому може бути використана для дослідження інших біофізичних параметрів отриманих за супутниковими даними. Методичний підхід із застосуванням профілювання локальної геосистеми з комплексуванням різних за характеристиками супутникових даних може успішно застосуватися при екологічному менеджменті конкретної ділянки в будь яких природних умовах та показати її вразливість до антропогенних навантажень.
{"title":"Супутниковий моніторинг стану геосистеми локального рівня на прикладі Матвіївського лісу поблизу м. Миколаїв (Україна)","authors":"Людмила Павлівна Ліщенко","doi":"10.36023/ujrs.2023.10.2.228","DOIUrl":"https://doi.org/10.36023/ujrs.2023.10.2.228","url":null,"abstract":"Метою роботи є демонстрація можливостей застосування багаторічних рядів супутникових даних для дослідження та аналізу окремої самоорганізованої геосистеми локального рівня для визначення тенденцій і змін, що відбуваються в екосистемах на регіональному рівні. За приклад взята ділянка, що зазнає швидкоплинних змін під дією природних та антропогенних чинників, а саме невелика південно степова ділянка рукотворного лісового масиву «Матвіївський ліс» поблизу м. Миколаїв, що розташована на лівобережжі р. Південний Буг. Для аналізу використаний багаторічний ряд багатозональних даних місії Landsat (за період в 32 роки) та Sentinel-2 останніх років за якими встановлюються залежності, що існують між станом геосистеми, температурою поверхні (LST) та рослинністю. Визначено, що показники вегетаційного індексу NDVI та LST знаходяться в протифазі. Але кореляційні залежності між ними становлять лише 0,56, тому що на локальному рівні існують інші чинники, такі як зволоженість грунту, форма рельєфу, стан погоди на час зйомки, що впливають на обраховані показники. За даними Sentinel-2 простежені та закартовані зміни, що відбуваються – порушення геологічного середовища через стихійне видобування піску, зменшення насаджень внаслідок лісових пожеж, природна саморегуляція та відновлення рослинного покриву в геосистемі після припинення видобування піску та завдяки висадженню нових масивів дерев. Дана геосистема зазнає постійних трансформацій у часі і просторі, є нестабільною і сильно змінюваною, але завдяки природоохоронним заходам зберігає свої рекреаційні і відновлювальні функції. Багатовимірна інформація найкраще відображається та аналізується за допомогою профілів-трансект, що різнобічно характеризують геосистему «Матвіївський ліс», а саме геологічне середовище, рослинність, теплові характеристики поверхні, часову та просторову мінливість стану земного покриву, а також в подальшому може бути використана для дослідження інших біофізичних параметрів отриманих за супутниковими даними. Методичний підхід із застосуванням профілювання локальної геосистеми з комплексуванням різних за характеристиками супутникових даних може успішно застосуватися при екологічному менеджменті конкретної ділянки в будь яких природних умовах та показати її вразливість до антропогенних навантажень.","PeriodicalId":113561,"journal":{"name":"Ukrainian journal of remote sensing","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126970032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-29DOI: 10.36023/ujrs.2023.10.2.237
Станіслав Ігорович Горелик, Денис Костянтинович Саул-Гозе, Роман Сергійович Сич
Однією з екологічних проблем України є незаконне використання лісових ресурсів, а саме несанкційні рубки лісу. За даними Державного агентства лісових ресурсів обсяги лісопорушень досягають десятки, а іноді тисячі кубометрів деревини на рік. Отже, актуальним завданням є достовірне визначення ділянок незаконної рубки лісу. Існують багато методів визначення цього правопорушення, їх можна поділити на дві великих групи: контактні та дистанційні. Контактні методи дозволяють визначати на місці факт незаконної рубки лісу, але потребують значних матеріальних і часових витрат. Серед наявних контактних даних слід зазначити відкритий Реєстр дозвільних документів на заготівлю деревини та геопортал «Публічна кадастрова карта», яка дозволяє визначити законність рубок. Дистанційні дані дозволяють з мінімальними часовими й матеріальними витратами локалізувати ділянки рубок лісу й визначати їх геометричні характеристики, але мають ряд недоліків пов’язаних з метеоумовами та неоднозначною інтерпретацією космічних методів дослідження. Комплексування контактних і дистанційних даних з їх подальшим аналізом доцільно проводити з використанням геоінформаційних систем і технологій. Геоінформаційні технології дозволяють швидко обробляти великий масив контактних і дистанційних даних, створенням картографічні моделі для їх подальшого аналізу і інтерпретації. Отже комплексне використання контактних і дистанційних методів досліджень дозволить оперативно виявляти ділянки вирубаного лісу, визначати геометричні характеристики та їх законність. Розроблена методика визначення рубок лісу з використанням ГІС технологій полягає у комплексному використанні відкритих даних з публічних порталів про наявність лісорубних квитків, космічних знімків з супутника Sentinel-2, програмного забезпечення ArcGIS з інструментами просторового аналізу ArcToolbox. Практична реалізація розробленої методики виконана для усієї Харківської області. Виявлено 3299 рубок, з яких 1977 – зроблені у період з 2008 по 2021 рр. За цей же період визначено 648 рубок лісу з відсутніми дозвільними документами.
{"title":"Методика визначення втрат лісу з використанням ГІС технологій","authors":"Станіслав Ігорович Горелик, Денис Костянтинович Саул-Гозе, Роман Сергійович Сич","doi":"10.36023/ujrs.2023.10.2.237","DOIUrl":"https://doi.org/10.36023/ujrs.2023.10.2.237","url":null,"abstract":"Однією з екологічних проблем України є незаконне використання лісових ресурсів, а саме несанкційні рубки лісу. За даними Державного агентства лісових ресурсів обсяги лісопорушень досягають десятки, а іноді тисячі кубометрів деревини на рік. Отже, актуальним завданням є достовірне визначення ділянок незаконної рубки лісу. Існують багато методів визначення цього правопорушення, їх можна поділити на дві великих групи: контактні та дистанційні. Контактні методи дозволяють визначати на місці факт незаконної рубки лісу, але потребують значних матеріальних і часових витрат. Серед наявних контактних даних слід зазначити відкритий Реєстр дозвільних документів на заготівлю деревини та геопортал «Публічна кадастрова карта», яка дозволяє визначити законність рубок. Дистанційні дані дозволяють з мінімальними часовими й матеріальними витратами локалізувати ділянки рубок лісу й визначати їх геометричні характеристики, але мають ряд недоліків пов’язаних з метеоумовами та неоднозначною інтерпретацією космічних методів дослідження. Комплексування контактних і дистанційних даних з їх подальшим аналізом доцільно проводити з використанням геоінформаційних систем і технологій. Геоінформаційні технології дозволяють швидко обробляти великий масив контактних і дистанційних даних, створенням картографічні моделі для їх подальшого аналізу і інтерпретації. Отже комплексне використання контактних і дистанційних методів досліджень дозволить оперативно виявляти ділянки вирубаного лісу, визначати геометричні характеристики та їх законність. Розроблена методика визначення рубок лісу з використанням ГІС технологій полягає у комплексному використанні відкритих даних з публічних порталів про наявність лісорубних квитків, космічних знімків з супутника Sentinel-2, програмного забезпечення ArcGIS з інструментами просторового аналізу ArcToolbox. Практична реалізація розробленої методики виконана для усієї Харківської області. Виявлено 3299 рубок, з яких 1977 – зроблені у період з 2008 по 2021 рр. За цей же період визначено 648 рубок лісу з відсутніми дозвільними документами.","PeriodicalId":113561,"journal":{"name":"Ukrainian journal of remote sensing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130849735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-03DOI: 10.36023/ujrs.2023.10.1.226
Oleksandr Matweev, S. Velichko, Dmytry Bychkov, V. Ivanov, V. Tsymbal
In order to identify the origin of the effect of anomalously narrowly-directional backscattering of radio waves (ANDBR) of the X-band in desert areas, the work describes a complex analysis of many years of research in the Sahara desert regions. According to the results of the analysis, which was carried out using the SAR radar data of the Envisat-1 satellite, results of contact measurements, weather conditions and taking into account modern theories, the characteristics of the scattering of radio waves by the aeolian landforms of the desert were modeled. A new model of anomalous backscatter is proposed, according to which the main scatterer towards the radar is a grid formed by the wind from electrified saltons and reptons at a height of 2–3 cm from the surface and repeating the landform of ripples and barchans. The new model made it possible to explain the main features of experimental studies of the ANDBR effect. Namely: the dependence of the normalized radar cross-section (NRCS) of the researched terrain on the near-surface wind speed up to 10 m/s with opposite directions of the wind and radar survey vectors, as well as with their mutual azimuthal deviation of ±45 degrees. By using the new model, satellite monitoring of the near-surfacelayer moisture of the Earth desert regions at 3 cm and 5.6 cm radio wave length swith radar viewing angles is proposed. Keywords: radar remote sensing, desert monitoring, anomalously narrowly-directional backscattering, sand electrified layer.
{"title":"Modeling of radar scattering by aeolian desert landforms","authors":"Oleksandr Matweev, S. Velichko, Dmytry Bychkov, V. Ivanov, V. Tsymbal","doi":"10.36023/ujrs.2023.10.1.226","DOIUrl":"https://doi.org/10.36023/ujrs.2023.10.1.226","url":null,"abstract":"In order to identify the origin of the effect of anomalously narrowly-directional backscattering of radio waves (ANDBR) of the X-band in desert areas, the work describes a complex analysis of many years of research in the Sahara desert regions. According to the results of the analysis, which was carried out using the SAR radar data of the Envisat-1 satellite, results of contact measurements, weather conditions and taking into account modern theories, the characteristics of the scattering of radio waves by the aeolian landforms of the desert were modeled. A new model of anomalous backscatter is proposed, according to which the main scatterer towards the radar is a grid formed by the wind from electrified saltons and reptons at a height of 2–3 cm from the surface and repeating the landform of ripples and barchans. The new model made it possible to explain the main features of experimental studies of the ANDBR effect. Namely: the dependence of the normalized radar cross-section (NRCS) of the researched terrain on the near-surface wind speed up to 10 m/s with opposite directions of the wind and radar survey vectors, as well as with their mutual azimuthal deviation of ±45 degrees. By using the new model, satellite monitoring of the near-surfacelayer moisture of the Earth desert regions at 3 cm and 5.6 cm radio wave length swith radar viewing angles is proposed. \u0000Keywords: radar remote sensing, desert monitoring, anomalously narrowly-directional backscattering, sand electrified layer.","PeriodicalId":113561,"journal":{"name":"Ukrainian journal of remote sensing","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121456158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-03DOI: 10.36023/ujrs.2023.10.1.227
S. Yesipovich, O. Rybak, A. Bondarenko, Olena Holovashchuk
The location of predictive and prospective objects for the oil and gas deposits exploration within the Krasnopavlovsk-Hrushivsk zone is substantiated, using a complex of geological-geophysical, morphometric and remote sensing methods. The data of the geodynamic scale of cyclicity for the Phanerozoic are used, which are consistent with the structural-facies complexes (SFC) identified by V.K. Havrysh for the Dnieper-Donets Rift (DDR). The region of articulation with Donbass has a sickle shape, and it is to it that the wedging zones of anomalous Early Permian deposits, described by I.I. Demyanenko, gravitate. The Permian period of the development of the Earth's crust is the beginning of the Alpine stage of the expansion of the planet, the rocks of which (early Permian) are characterized by excellent accumulation properties, as well as the subsequent layers of the late Triassic and early Cretaceous. Complex processing of the remotely sensed data and seismic exploration within the area of the Lozova-Shebelinka-Staropokrivka regional seismic profile made it possible to identify promising objects exactly within its boundaries of the field of scattered waves, using mapping of non-structural information.
{"title":"Determination of perspective objects for oil and gas exploration in the Krasnopavlovsk-Hrushivsk transverse zone of the Dnipro graben, using a complex of geological-geophysical, morphometric and remote sensing methods","authors":"S. Yesipovich, O. Rybak, A. Bondarenko, Olena Holovashchuk","doi":"10.36023/ujrs.2023.10.1.227","DOIUrl":"https://doi.org/10.36023/ujrs.2023.10.1.227","url":null,"abstract":"The location of predictive and prospective objects for the oil and gas deposits exploration within the Krasnopavlovsk-Hrushivsk zone is substantiated, using a complex of geological-geophysical, morphometric and remote sensing methods. The data of the geodynamic scale of cyclicity for the Phanerozoic are used, which are consistent with the structural-facies complexes (SFC) identified by V.K. Havrysh for the Dnieper-Donets Rift (DDR). The region of articulation with Donbass has a sickle shape, and it is to it that the wedging zones of anomalous Early Permian deposits, described by I.I. Demyanenko, gravitate. The Permian period of the development of the Earth's crust is the beginning of the Alpine stage of the expansion of the planet, the rocks of which (early Permian) are characterized by excellent accumulation properties, as well as the subsequent layers of the late Triassic and early Cretaceous. Complex processing of the remotely sensed data and seismic exploration within the area of the Lozova-Shebelinka-Staropokrivka regional seismic profile made it possible to identify promising objects exactly within its boundaries of the field of scattered waves, using mapping of non-structural information.","PeriodicalId":113561,"journal":{"name":"Ukrainian journal of remote sensing","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121864732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-03DOI: 10.36023/ujrs.2023.10.1.231
B. Kovalenko, V. Rebrov, V. Lukin
An increase in the number of images and their average size is the general trend nowadays. This increase leads to certain problems with data storage and transfer via communication lines. A common way to solve this problem is to apply lossy compression that provides sufficiently larger compression ratios compared to lossless compression approaches. However, lossy compression has several peculiarities, especially if a compressed image is corrupted by quite intensive noise. First, a specific noise-filtering effect is observed. Second, an optimal operational point (OOP) might exist where the quality of a compressed image is closer to the corresponding noise-free image than the quality of the original image according to a chosen quality metric. In this case, it is worth compressing this image in the OOP or its closest neighborhood. These peculiarities have been earlier studied and their positive impact on image quality improvement has been demonstrated. Filtering of noisy images due to lossy compression is not perfect. Because of this, it is worth checking can additional quality improvement be reached using such an approach as post-filtering. In this study, we attempt to answer the questions: “is it worth to post-filter an image after lossy compression, especially in OOP’s neighborhood? And what benefit can it bring in the sense of image quality?”. The study is carried out for better portable graphics (BPG) coder and the DCT-based filter focusing mainly on one-component (grayscale) images. The quality of images is characterized by several metrics such as PSNR, PSNR-HVS-M, and FSIM. Possible image quality increasing via post-filtering is demonstrated and the recommendations for filter parameter setting are given.
{"title":"Analysis of the potential efficiency of post-filtering noisy images after lossy compression","authors":"B. Kovalenko, V. Rebrov, V. Lukin","doi":"10.36023/ujrs.2023.10.1.231","DOIUrl":"https://doi.org/10.36023/ujrs.2023.10.1.231","url":null,"abstract":"An increase in the number of images and their average size is the general trend nowadays. This increase leads to certain problems with data storage and transfer via communication lines. A common way to solve this problem is to apply lossy compression that provides sufficiently larger compression ratios compared to lossless compression approaches. However, lossy compression has several peculiarities, especially if a compressed image is corrupted by quite intensive noise. First, a specific noise-filtering effect is observed. Second, an optimal operational point (OOP) might exist where the quality of a compressed image is closer to the corresponding noise-free image than the quality of the original image according to a chosen quality metric. In this case, it is worth compressing this image in the OOP or its closest neighborhood. These peculiarities have been earlier studied and their positive impact on image quality improvement has been demonstrated. Filtering of noisy images due to lossy compression is not perfect. Because of this, it is worth checking can additional quality improvement be reached using such an approach as post-filtering. In this study, we attempt to answer the questions: “is it worth to post-filter an image after lossy compression, especially in OOP’s neighborhood? And what benefit can it bring in the sense of image quality?”. The study is carried out for better portable graphics (BPG) coder and the DCT-based filter focusing mainly on one-component (grayscale) images. The quality of images is characterized by several metrics such as PSNR, PSNR-HVS-M, and FSIM. Possible image quality increasing via post-filtering is demonstrated and the recommendations for filter parameter setting are given.","PeriodicalId":113561,"journal":{"name":"Ukrainian journal of remote sensing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131115146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-03DOI: 10.36023/ujrs.2023.10.1.229
M. Lubskyi, Tetiana Orlenko, I. Piestova, A. Andreiev, A. Lysenko
Earth's surface monitoring allows the assessment of the dynamics and mapping of desertification indicators and is currently one of the priority research regions in remote sensing. In addition to the fact that desertification is a serious global threat to economic, social and food security, the risks of desertification have also become relevant for southern Ukraine. In recent years, climate change has become more and more noticeable in Ukraine. As a result, the time frames of the seasons are blurred, the boundaries of natural zones are shifting, abnormal values of meteorological indicators are increasingly observed, and the intensity of natural disasters is increasing. Since southern Ukraine is most vulnerable to adverse climate and landscape changes, including desertification, the article considered long-term landscape changes on the right bank of the Dnieper River in the Kherson region, mainly represented by sandy massifs of the Oleshky region, which are called the Oleshky Sands. Arid landscapes, which include the vast majority of Oleshky, are especially vulnerable to degradation processes, so space monitoring this territory is an urgent task given the current global climate changes. Within the framework of the presented study, the long-term dynamics of several indicators of desertification within the sandy arenas of the Oleshkovsky sands were mapped. Based on a series of multispectral space images obtained by Landsat satellites for the period 1986-2020 was considered. Spectral ranges characterize the key biophysical aspects of arid landscapes: the degree of soil moisture, vegetation density and sand distribution. Regression analysis was used to illustrate the dynamics of each indicator, which showed a general increase in each indicator over the experimental period. Furthermore, we determined the relationship between the values of the rise in desertification indicators and landscape changes that occurred in the research region, the classification of several images for different years was also carried out, and spatial and quantitative changes in the distribution of land cover classes were characterized.
{"title":"Evaluation of indicators for desertification risk assessment of Oleshky sands desertification based on Landsat data time series","authors":"M. Lubskyi, Tetiana Orlenko, I. Piestova, A. Andreiev, A. Lysenko","doi":"10.36023/ujrs.2023.10.1.229","DOIUrl":"https://doi.org/10.36023/ujrs.2023.10.1.229","url":null,"abstract":"Earth's surface monitoring allows the assessment of the dynamics and mapping of desertification indicators and is currently one of the priority research regions in remote sensing. In addition to the fact that desertification is a serious global threat to economic, social and food security, the risks of desertification have also become relevant for southern Ukraine. In recent years, climate change has become more and more noticeable in Ukraine. As a result, the time frames of the seasons are blurred, the boundaries of natural zones are shifting, abnormal values of meteorological indicators are increasingly observed, and the intensity of natural disasters is increasing. Since southern Ukraine is most vulnerable to adverse climate and landscape changes, including desertification, the article considered long-term landscape changes on the right bank of the Dnieper River in the Kherson region, mainly represented by sandy massifs of the Oleshky region, which are called the Oleshky Sands. Arid landscapes, which include the vast majority of Oleshky, are especially vulnerable to degradation processes, so space monitoring this territory is an urgent task given the current global climate changes. Within the framework of the presented study, the long-term dynamics of several indicators of desertification within the sandy arenas of the Oleshkovsky sands were mapped. Based on a series of multispectral space images obtained by Landsat satellites for the period 1986-2020 was considered. Spectral ranges characterize the key biophysical aspects of arid landscapes: the degree of soil moisture, vegetation density and sand distribution. Regression analysis was used to illustrate the dynamics of each indicator, which showed a general increase in each indicator over the experimental period. Furthermore, we determined the relationship between the values of the rise in desertification indicators and landscape changes that occurred in the research region, the classification of several images for different years was also carried out, and spatial and quantitative changes in the distribution of land cover classes were characterized.","PeriodicalId":113561,"journal":{"name":"Ukrainian journal of remote sensing","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134452931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-03DOI: 10.36023/ujrs.2023.10.1.235
S. Golubov
Research, testing and experimental substantiation of the possibility of using remote sensing data obtained from a spectrometer installed on an unmanned aerial vehicle (UAV) and satellite data to assess the presence of hydrocarbon deposits within geological structures has been carried out. The test area was chosen as the Vostochnorogintsevska area (Velikobubnivsky Val of the Dnipro-Donetsk Basin) with available hydrocarbon deposits (HC), productive and unproductive wells, the research route was laid between unproductive and productive wells. The main advantage of this territory is the availability of the results of processing primary data of ground measurements and remote sensing obtained by various types of equipment from 1999 to 2021. The study is devoted to the comparative analysis of vegetation indices, which are calculated from remote data obtained by a multispectral camera mounted on an UAV and Sentinel-2 satellite data. It was determined that these data have a high degree of correlation, reflect changes in the state of vegetation, caused by the presence of HC deposits, tectonically active fault zones, and have significant indicative value. The obtained results provide a basis for the effective use of UAVs in the structure of the methodology for solving oil and gas exploration tasks on land.
{"title":"Reasoning of the possibilities of using spectrometric data obtained from UAVs and the Sentinel-2 satellite to solve oil and gas exploration problems on land","authors":"S. Golubov","doi":"10.36023/ujrs.2023.10.1.235","DOIUrl":"https://doi.org/10.36023/ujrs.2023.10.1.235","url":null,"abstract":"Research, testing and experimental substantiation of the possibility of using remote sensing data obtained from a spectrometer installed on an unmanned aerial vehicle (UAV) and satellite data to assess the presence of hydrocarbon deposits within geological structures has been carried out. The test area was chosen as the Vostochnorogintsevska area (Velikobubnivsky Val of the Dnipro-Donetsk Basin) with available hydrocarbon deposits (HC), productive and unproductive wells, the research route was laid between unproductive and productive wells. The main advantage of this territory is the availability of the results of processing primary data of ground measurements and remote sensing obtained by various types of equipment from 1999 to 2021. The study is devoted to the comparative analysis of vegetation indices, which are calculated from remote data obtained by a multispectral camera mounted on an UAV and Sentinel-2 satellite data. It was determined that these data have a high degree of correlation, reflect changes in the state of vegetation, caused by the presence of HC deposits, tectonically active fault zones, and have significant indicative value. The obtained results provide a basis for the effective use of UAVs in the structure of the methodology for solving oil and gas exploration tasks on land.","PeriodicalId":113561,"journal":{"name":"Ukrainian journal of remote sensing","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126989137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-08DOI: 10.36023/ujrs.2022.9.4.218
Y. Gorishnya, A. Shvets
Tweek-atmospherics (tweeks), along with radio transmission by VLF radio stations, are used to study the lower ionosphere. Electromagnetic pulse radiation, which has been excited by the lightning discharges, has a maximum spectral density at extra low frequencies range (ELF, 300...3000 Hz) and very low frequencies (VLF, 3...30 kHz). The Earth-ionosphere cavity serves as a waveguide for electromagnetic waves in these frequency ranges. On the spectrogram of the tweek, the initial part is a linearly polarized broadband signal, and then a number of individual harmonics are observed. Their instantaneous frequencies decrease, asymptotically approaching approximately multiples of the cutoff frequencies of the waveguide. The single position method for lightning location and estimation of the ELF wave’s reflection heights in the lower ionosphere by tweeks has been implemented into the computational algorithm. The clusters with approximately the same azimuths and distances to sources which have been obtained during the same night have been identified upon the ensemble of tweek-atmospheric records. The data were accumulated at the Ukrainian Antarctic Station "Akademik Vernadsky" in 2019. The location of the receiving complex in the near-polar region makes it possible to register tweek sources in two world thunderstorm centers with geographic azimuths from –60° to 130°. The results of processing these data have been used by studying the correlation matrix and partial correlation coefficients to identify causal relationships between the three main parameters of the tweek, such as (1) the average azimuth of the arrival of tweeks in regard to the magnetic meridian, (2) the average distance to the center of the cluster of tweek sources (lightning discharges), and (3) the average number of tweek harmonics. The same correlation analysis was applied to two groups with distances to sources of 2.2...7.5 Mm and 7.6...9.5 Mm used for study in detail. It is shown that the partial correlation coefficients between the number of tweek harmonics and the difference of the magnetic azimuth from the magnetic east are 0.624 (for the entire range of distances), 0.696 (for far tweek sources) and 0.595 (for main middle range), so, they always exceed the values of 0.1% significance level. The correlation of tweek spectrum with the distance to the tweek source in the range of 2.2…7.5 Mm has been shown to be comparable in magnitude or to exceed the correlation of tweek spectrum with the magnetic azimuth. The elimination of this masking effect by calculating the partial correlation coefficients made it possible to reveal the magnetic azimuth dependences of the tweek spectra if tweek propagates in a region outside the geomagnetic equator. Thus, the effect of non-reciprocity of propagation of ELF – VLF waves in regard to the magnetic meridian in the east – west and west – east directions is found in the spectra of tweek-atmospherics. It results in an increased probability of detecting tw
{"title":"Correlational Analysis of the ELF – VLF Nighttime Atmospherics Parameters","authors":"Y. Gorishnya, A. Shvets","doi":"10.36023/ujrs.2022.9.4.218","DOIUrl":"https://doi.org/10.36023/ujrs.2022.9.4.218","url":null,"abstract":"Tweek-atmospherics (tweeks), along with radio transmission by VLF radio stations, are used to study the lower ionosphere. Electromagnetic pulse radiation, which has been excited by the lightning discharges, has a maximum spectral density at extra low frequencies range (ELF, 300...3000 Hz) and very low frequencies (VLF, 3...30 kHz). The Earth-ionosphere cavity serves as a waveguide for electromagnetic waves in these frequency ranges. On the spectrogram of the tweek, the initial part is a linearly polarized broadband signal, and then a number of individual harmonics are observed. Their instantaneous frequencies decrease, asymptotically approaching approximately multiples of the cutoff frequencies of the waveguide. The single position method for lightning location and estimation of the ELF wave’s reflection heights in the lower ionosphere by tweeks has been implemented into the computational algorithm. The clusters with approximately the same azimuths and distances to sources which have been obtained during the same night have been identified upon the ensemble of tweek-atmospheric records. The data were accumulated at the Ukrainian Antarctic Station \"Akademik Vernadsky\" in 2019. The location of the receiving complex in the near-polar region makes it possible to register tweek sources in two world thunderstorm centers with geographic azimuths from –60° to 130°. The results of processing these data have been used by studying the correlation matrix and partial correlation coefficients to identify causal relationships between the three main parameters of the tweek, such as (1) the average azimuth of the arrival of tweeks in regard to the magnetic meridian, (2) the average distance to the center of the cluster of tweek sources (lightning discharges), and (3) the average number of tweek harmonics. The same correlation analysis was applied to two groups with distances to sources of 2.2...7.5 Mm and 7.6...9.5 Mm used for study in detail. It is shown that the partial correlation coefficients between the number of tweek harmonics and the difference of the magnetic azimuth from the magnetic east are 0.624 (for the entire range of distances), 0.696 (for far tweek sources) and 0.595 (for main middle range), so, they always exceed the values of 0.1% significance level. The correlation of tweek spectrum with the distance to the tweek source in the range of 2.2…7.5 Mm has been shown to be comparable in magnitude or to exceed the correlation of tweek spectrum with the magnetic azimuth. The elimination of this masking effect by calculating the partial correlation coefficients made it possible to reveal the magnetic azimuth dependences of the tweek spectra if tweek propagates in a region outside the geomagnetic equator. Thus, the effect of non-reciprocity of propagation of ELF – VLF waves in regard to the magnetic meridian in the east – west and west – east directions is found in the spectra of tweek-atmospherics. It results in an increased probability of detecting tw","PeriodicalId":113561,"journal":{"name":"Ukrainian journal of remote sensing","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126252448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-08DOI: 10.36023/ujrs.2022.9.4.224
O. Arkhipov, O. Titarenko, T. Yefimenko
Ukraine's economy needs in oil and gas consumption are not currently decreasing, and in connection with military actions in the east of the country, they are rather growing, so there is an urgent need for our country to increase energy resources. In this regard, it is necessary to accelerate the processes of hydrocarbon deposits exploration. Today, as much as before, the most promising area for exploration of new oil and gas deposits remains the Dnipro-Prypyat oil and gas-bearing province, in particular the Dnipro-Donetsk Basin. The article is devoted to urgent issues regarding forecasting onshore oil and gas prospects based on aerospace and geology methods.In the process of approbation of the proposed technology with materials of space and geological research, the first-priority areas, which are recommended for conducting detailed seismic exploration works, have been selected on the Lyvenska territory. The results of drilling operations within these areas will make it possible to assert the high reliability of the provided forecasts.
{"title":"Assessment of gas prospects of the areas on the Lyvenska territory based on the materials of space and geological research","authors":"O. Arkhipov, O. Titarenko, T. Yefimenko","doi":"10.36023/ujrs.2022.9.4.224","DOIUrl":"https://doi.org/10.36023/ujrs.2022.9.4.224","url":null,"abstract":"Ukraine's economy needs in oil and gas consumption are not currently decreasing, and in connection with military actions in the east of the country, they are rather growing, so there is an urgent need for our country to increase energy resources. In this regard, it is necessary to accelerate the processes of hydrocarbon deposits exploration. Today, as much as before, the most promising area for exploration of new oil and gas deposits remains the Dnipro-Prypyat oil and gas-bearing province, in particular the Dnipro-Donetsk Basin. The article is devoted to urgent issues regarding forecasting onshore oil and gas prospects based on aerospace and geology methods.In the process of approbation of the proposed technology with materials of space and geological research, the first-priority areas, which are recommended for conducting detailed seismic exploration works, have been selected on the Lyvenska territory. The results of drilling operations within these areas will make it possible to assert the high reliability of the provided forecasts.","PeriodicalId":113561,"journal":{"name":"Ukrainian journal of remote sensing","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114567705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-08DOI: 10.36023/ujrs.2022.9.4.221
V. Lyalko, S. Dugin, O. Sybirtseva, Yelizaveta Dorofey, S. Golubov, G. Zholobak
Spectro-gasometric ground-based measurements were carried out during 2020-2021. It was determined that five vegetation indices - REP (Red Edge Position), Green NRDI (Normalized Difference Vegetation Index), Green MOD (Green Model) and Red MOD (Red edge Model) are more responsive to the presence of СО2 concentration depending on leaf photosynthesis and leaf respiration of the coastal sedge (Carex riparia) with high correlation under Pearson from 0.60 to 0.72. Certain vegetation indices capture changes in СО2 concentration and can be recommended for use in carbon flux models for vegetation canopy. Data from DJI P4 Multispectral UAV, Parrot Bebop Pro Thermal and Sentinel-2 satellite compared to ground measurements on May 25, 2021.
在2020-2021年期间进行了光谱-气体计量地面测量。结果表明，沿海苔草(Carex riparia)的5个植被指数REP (Red Edge Position)、Green NRDI (Normalized Difference vegetation Index)、Green MOD (Green Model)和Red MOD (Red Edge Model)对СО2浓度的存在响应更大，在Pearson下的相关系数为0.60 ~ 0.72。某些植被指数捕捉СО2浓度的变化，可推荐用于植被冠层的碳通量模型。来自大疆P4多光谱无人机、Parrot Bebop Pro Thermal和Sentinel-2卫星的数据与2021年5月25日的地面测量数据进行了比较。
{"title":"Gas exchange for the plants on the example of coastal sedge and comparison with the materials of spectro-gasometric ground-based measurements from the UAV and the Sentinel-2 satellite","authors":"V. Lyalko, S. Dugin, O. Sybirtseva, Yelizaveta Dorofey, S. Golubov, G. Zholobak","doi":"10.36023/ujrs.2022.9.4.221","DOIUrl":"https://doi.org/10.36023/ujrs.2022.9.4.221","url":null,"abstract":"Spectro-gasometric ground-based measurements were carried out during 2020-2021. It was determined that five vegetation indices - REP (Red Edge Position), Green NRDI (Normalized Difference Vegetation Index), Green MOD (Green Model) and Red MOD (Red edge Model) are more responsive to the presence of СО2 concentration depending on leaf photosynthesis and leaf respiration of the coastal sedge (Carex riparia) with high correlation under Pearson from 0.60 to 0.72. Certain vegetation indices capture changes in СО2 concentration and can be recommended for use in carbon flux models for vegetation canopy. Data from DJI P4 Multispectral UAV, Parrot Bebop Pro Thermal and Sentinel-2 satellite compared to ground measurements on May 25, 2021.","PeriodicalId":113561,"journal":{"name":"Ukrainian journal of remote sensing","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128992834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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