Remote Sensing Technology and Application 鈥衡�� 2020, Vol. 35 鈥衡�� Issue (1): 153-162.DOI: 10.11873/j.issn.1004-0323.2020.1.0153

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Validation of Narrow-band Surface Albedo Retrieved from FY-3C MERSI Satellite Data

Chunliang Zhao1,2(),Wenbo Xu3,Jinlong Fan1()   

  1. 1. National Satellite Meteorological Center, Beijing 100081, China
    2. Chinese Academy of Agricultural Sciences, Institute of Agricultural Resources and Regional Planning, Beijing 100081, China
    3. University of Electronic Science and Technology of China, School of Resources and Environment, Chengdu 611731, China
  • Received:2018-10-09 Revised:2020-01-11 Online:2020-04-01 Published:2020-02-20
  • Contact: Jinlong Fan

FY-3C涓垎杈ㄧ巼鎴愬儚鍏夎氨浠暟鎹殑绐勬尝娈靛湴琛ㄥ弽鐓х巼楠岃瘉鐮旂┒

璧垫槬浜�1,2(),璁告枃娉�3,鑼冮敠榫�1()   

  1. 1. 鍥藉鍗槦姘旇薄涓績, 鍖椾含 100081
    2. 涓浗鍐滀笟绉戝闄㈠啘涓氳祫婧愪笌鍐滀笟鍖哄垝鐮旂┒鎵�锛屽寳浜� 100081
    3. 鐢靛瓙绉戞妧澶у璧勬簮涓庣幆澧冨闄�, 鍥涘窛 鎴愰兘 611731
  • 閫氳浣滆��: 鑼冮敠榫�
  • 浣滆�呯畝浠�:璧垫槬浜紙1992鈥�)锛岀敺锛屽北瑗垮簲鍘夸汉锛屽崥澹爺绌剁敓锛屼富瑕佷粠浜嬫琚畾閲忛仴鎰熸柟闈㈢殑鐮旂┒銆侲?mail:zcluestc@163.com銆�
  • 鍩洪噾璧勫姪:
    鍥藉閲嶇偣鐮斿彂璁″垝椤圭洰(2016YFA0600301)

Abstract:

Surface albedo is one of the driving factors in surface radiant energy balance and surface-atmosphere interaction.It is widely used in surface energy balance, medium and long-term weather forecasting and global change research.This study aims to validate the surface albedo retrieved from FY-3C MERSI. This paper selected four regions in Africa and North America as study areas to validate the retrieved albedo from the reflectance data and angle data of FY-3C MERSI at 250 m resolution in 2014. The semi-empirical kernel-driven BRDF(bidirectional reflectance distribution function) model RossThick-LiSparseR and least squares fitting method were used to calculate the parameter of BRDF. Then four narrow-band black-sky albedos and four narrow-band white-sky albedos can be obtained by angle integration. Finally, the cross-validation of FY-3C surface narrow-band albedo products with MODIS albedo products (MCD43A3) was carried out. The results show that theRoot Mean Square Error(RMSE) between the FY-3C narrow-band albedo and the corresponding MODIS narrow-band albedo is in the range of 0.01 ~ 0.04, and the Mean Bias (MBIAS) is 0.09. FY-3C narrow-band albedo has good consistency with the corresponding MODIS narrow-band albedo in the visible and near-infrared bands. So, the methodologyof using the BRDF model to invert the surface albedo of FY-3C medium resolution imaging spectrometer data is feasible and reliable. The further improvement of the inversion accuracy of FY3C-MERSI surface albedo also depends on the improvement of basic data processing quality, including image geometric correction, calibration, and strict data quality control.

Key words: Surface Albedo, FY-3C, MERSI, MODIS

鎽樿锛�

鍦拌〃鍙嶇収鐜囨暟鎹鍦拌〃鑳介噺骞宠 鍜屽叏鐞冨彉鍖栫爺绌跺叿鏈夐噸瑕佹剰涔夈�傚熀浜�2014骞碏Y-3C鍗槦250 m鍒嗚鲸鐜囩殑鍙嶅皠鐜囨暟鎹拰瑙掑害鏁版嵁锛岄�夊彇闈炴床鍙婂寳缇庢床鐨�4涓尯鍩熶綔涓虹爺绌跺尯锛岄噰鐢≧ossThick-LiSparseR妯″瀷浣滀负BRDF(Bidirectional Reflectance Distribution Function)鏍告ā鍨嬪弽婕斾簡鍦拌〃绐勬尝娈靛弽鐓х巼锛屽緱鍒�250 m鍒嗚鲸鐜囩殑4涓獎娉㈡榛戠┖銆佺櫧绌哄弽鐓х巼銆傚皢鍙嶆紨寰楀埌鐨凢Y-3C鍦拌〃绐勬尝鍙嶇収鐜囦骇鍝佷笌MODIS鍙嶇収鐜囦骇鍝侊紙MCD43A3锛夋暟鎹繘琛屼簡浜ゅ弶楠岃瘉锛岀粨鏋滆〃鏄庯細FY-3C绐勬尝娈靛弽鐓х巼涓庡搴擬ODIS绐勬尝娈靛弽鐓х巼瀵规瘮鐨勫潎鏂规牴璇樊鍦�0.01~0.04锛屽钩鍧囧亸宸�(MBIAS)涓�0.09锛孎Y-3C绐勬尝娈靛弽鐓х巼涓庡搴旂殑MODIS绐勬尝娈靛弽鐓х巼鍦ㄥ彲瑙佸厜娉㈡銆佽繎绾㈠娉㈡鏈夎緝濂界殑涓�鑷存�с�傛湰鐮旂┒鎻愬崌浜嗗浗浜ч浜戞瀬杞ㄥ崼鏄熺殑搴旂敤鑼冨洿锛屽彲涓篎Y-3C鍦拌〃鍙嶇収鐜囦笟鍔″寲浜у搧鎻愪緵绠楁硶鏀拺銆�

鍏抽敭璇�: 鍦拌〃鍙嶇収鐜�, FY?3C, MERSI, MODIS

CLC Number: