Drone Measurements of Solar-Induced Chlorophyll Fluorescence Acquired with a Low-Weight DFOV Spectrometer System

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) Pub Date : 2018-07-01 DOI:10.1109/IGARSS.2018.8517474

J. Atherton, A. MacArthur, T. Hakala, K. Maseyk, Iain Robinson, Weiwei Liu, E. Honkavaara, A. Porcar-Castell

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引用次数: 2

Abstract

Solar induced chlorophyll fluorescence (SIF) emitted from plant canopies is now retrievable from space. In addition, SIF is now also routinely measured from fixed tower platforms. However there is a scale gap between temporally continuous tower measurements and spatially coarse satellite retrievals that is now being bridged by drone technology. Drone retrievals of SIF can be used to help unravel the structural and species component dependencies that occur across space on the scale of meters in heterogeneous vegetation types. Also when flown at sufficient altitude, drones can be used to simulate, and potentially validate satellite retrievals of SIF. We flew a dual field of view spectrometer system, the Piccolo doppio, above a boreal forest with the aim of retrieving SIF. Our flights were designed to assess both spatial heterogeneity of SIF driven by changes in vegetation cover type and to simulate satellite pixels by flying at a relatively high altitude.

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低重量DFOV光谱仪系统太阳诱导叶绿素荧光的无人机测量

从植物冠层发出的太阳诱导的叶绿素荧光(SIF)现在可以从太空中回收。此外，SIF现在也可以在固定的塔平台上进行常规测量。然而，在时间连续的塔测量和空间粗糙的卫星检索之间存在尺度差距，目前正在通过无人机技术弥补这一差距。无人机对SIF的检索可以帮助揭示异质植被类型在米尺度上跨空间发生的结构和物种成分依赖关系。此外，当飞行在足够的高度时，无人机可以用来模拟，并可能验证卫星检索的SIF。我们在北方森林上空飞行了一个双视场光谱仪系统，Piccolo doppio，目的是获取SIF。我们的飞行旨在评估由植被覆盖类型变化驱动的SIF的空间异质性，并通过在相对较高的高度飞行来模拟卫星像素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)

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