Arid
DOI10.3390/s18103504
Development of a Multispectral Albedometer and Deployment on an Unmanned Aircraft for Evaluating Satellite Retrieved Surface Reflectance over Nevada’s Black Rock Desert
Boehmler, Jayne M.1; Loria-Salazar, S. Marcela1; Stevens, Chris1; Long, James D.1; Watts, Adam C.2; Holmes, Heather A.1; Barnard, James C.1; Arnott, W. Patrick1
通讯作者Arnott, W. Patrick
来源期刊SENSORS
ISSN1424-8220
出版年2018
卷号18期号:10
英文摘要

Bright surfaces across the western U.S. lead to uncertainties in satellite derived aerosol optical depth (AOD) where AOD is typically overestimated. With this in mind, a compact and portable instrument was developed to measure surface albedo on an unmanned aircraft system (UAS). This spectral albedometer uses two Hamamatsu micro-spectrometers (range: 340-780 nm) for measuring incident and reflected solar radiation at the surface. The instrument was deployed on 5 October 2017 in Nevada’s Black Rock Desert (BRD) to investigate a region of known high surface reflectance for comparison with albedo products from satellites. It was found that satellite retrievals underestimate surface reflectance compared to the UAS mounted albedometer. To highlight the importance of surface reflectance on the AOD from satellite retrieval algorithms, a 1-D radiative transfer model was used. The simple model was used to determine the sensitivity of AOD with respect to the change in albedo and indicates a large sensitivity of AOD retrievals to surface reflectance for certain combinations of surface albedo and aerosol optical properties. This demonstrates the need to increase the number of surface albedo measurements and an intensive evaluation of albedo satellite retrievals to improve satellite-derived AOD. The portable instrument is suitable for other applications as well.


英文关键词albedo AOD MODIS LANDSAT unmanned aircraft system UAS UAV drone satellite remote sensing
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000448661500332
WOS关键词AEROSOL PRODUCTS ; LAND ; VALIDATION ; AERONET ; IMAGER ; COVER
WOS类目Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS研究方向Chemistry ; Engineering ; Instruments & Instrumentation
来源机构Desert Research Institute
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/213158
作者单位1.Univ Nevada, Dept Phys, Atmospher Sci Program, Reno, NV 89557 USA;
2.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA
推荐引用方式
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Boehmler, Jayne M.,Loria-Salazar, S. Marcela,Stevens, Chris,等. Development of a Multispectral Albedometer and Deployment on an Unmanned Aircraft for Evaluating Satellite Retrieved Surface Reflectance over Nevada’s Black Rock Desert[J]. Desert Research Institute,2018,18(10).
APA Boehmler, Jayne M..,Loria-Salazar, S. Marcela.,Stevens, Chris.,Long, James D..,Watts, Adam C..,...&Arnott, W. Patrick.(2018).Development of a Multispectral Albedometer and Deployment on an Unmanned Aircraft for Evaluating Satellite Retrieved Surface Reflectance over Nevada’s Black Rock Desert.SENSORS,18(10).
MLA Boehmler, Jayne M.,et al."Development of a Multispectral Albedometer and Deployment on an Unmanned Aircraft for Evaluating Satellite Retrieved Surface Reflectance over Nevada’s Black Rock Desert".SENSORS 18.10(2018).
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