1.

Conference Proceedings
Conference Proceedings
1. Estimation of land photosynthetically active radiation in clear sky using MODIS atmosphere and land products
X. Xie ; W. Gao ; Z. Gao
Pub. info.: Remote sensing and modeling of ecosystems for sustainability V : 13 August 2008, San Diego, California, USA.  pp.70830O-1-70830O-7,  2008.  Bellingham, Wash..  Society of Photo-optical Instrumentation Engineers
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 7083
2.

Conference Proceedings
Conference Proceedings
2. A method for estimating the incident PAR on inclined surfaces
X. Xie ; W. Gao ; Z. Gao
Pub. info.: Remote sensing and modeling of ecosystems for sustainability V : 13 August 2008, San Diego, California, USA.  pp.70830P-1-70830P-7,  2008.  Bellingham, Wash..  Society of Photo-optical Instrumentation Engineers
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 7083