New global high-resolution products of incident shortwave radiation and photosynthetically active radiation from MODIS

Authors: Dongdong Wang*, , Shunlin Liang, University of Maryland
Topics: Remote Sensing
Keywords: MODIS, solar radiation, photosynthetically active radiation
Session Type: Paper
Day: 4/3/2019
Start / End Time: 4:30 PM / 6:10 PM
Room: Stones Throw 3 - Mica, Marriott, Lobby Level
Presentation File: No File Uploaded


Incident solar radiation is the major source of energy over land surfaces and controls the exchange of matter and energy between the land surface and the atmosphere. Downward shortwave radiation (DSR) and its visible portion, photosynthetically active radiation (PAR) over land surfaces are required by almost all land surface models. Previous satellite products of DSR and PAR typically have coarse spatial resolution that cannot meet the requirements of land process modeling and data analysis. Funded by NASA, we have developed the first operational global high-resolution land DSR (MCD18A1) and PAR (MCD18A2) products from MODIS data. MODIS C61 DSR and PAR products have a spatial resolution of 1km and a daily temporal resolution.

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