Skip all navigation and jump to content Jump to site navigation
NASA Logo - Goddard Space Flight Center

+ NASA Homepage

    
Goddard Space Flight Center
About MODIS News Data Tools /images2 Science Team Science Team Science Team

   + Home
ABOUT MODIS
MODIS Publications Link
MODIS Presentations Link
MODIS Biographies Link
MODIS Science Team Meetings Link
 

 

 

Liou, KN, Lee, WL, Hall, A (2007). Radiative transfer in mountains: Application to the Tibetan Plateau. GEOPHYSICAL RESEARCH LETTERS, 34(23), L23809.

Abstract
[1] We developed a 3D Monte Carlo photon tracing program for the transfer of radiation in inhomogeneous and irregular terrain to calculate broadband solar and thermal infrared fluxes. We selected an area of 100 x 100 km(2) in the Tibetan Plateau centered at Lhasa city and used the albedo and surface temperature from MODIS/Terra for this study. We showed that anomalies of surface solar fluxes with reference to a flat surface can be as large as 600 W/m(2), depending on time of day, mountain configuration, and albedo. Surface temperature is the dominating factor in determining anomalies of the surface infrared flux distribution relative to a flat surface with values as high as 70 W/m(2) at cold mountain surfaces. The average surface solar flux over regional domains of 100 x 100 km 2 and 50 x 50 km(2) comprising intense topography can deviate from the smoothed surface conventionally assumed in climate models and GCMs by 10-50 W/m(2).

DOI:
10.1029/2007GL031762

ISSN:
0094-8276

FirstGov logo Privacy Policy and Important Notices NASA logo

Curator: Brandon Maccherone
NASA Official: Shannell Frazier

NASA Home Page Goddard Space Flight Center Home Page