Citation:
Ge, Y., Liang, Y.Z., Wang, J.H., Zhao, Q.Y., Liu, S.M. (2015). Upscaling sensible heat fluxes with area-to-area regression kriging. IEEE Geoscience and Remote Sensing Letters, 12(3), 656-660. doi:10.1109/LGRS.2014.2355871.
| Literature information | |
| Title | Upscaling Sensible Heat Fluxes With Area-to-Area Regression Kriging |
| Year | 2015 |
| Publisher |
IEEE Geoscience and Remote Sensing Letters |
| Description |
Surface sensible heat flux (SHF) is a critical indicator for understanding heat exchange at the land-atmosphere interface. A common method for estimating regional SHF is to use ground observations with approaches such as eddy correlation (EC) or the use of a large aperture scintillometer (LAS). However, data observed by these different methods might have an issue with different spatial supports for cross-validation and comparison. This letter utilizes a geostatistical method called area-to-area regression kriging (ATARK) to solve this problem. The approach is illustrated by upscaling SHF from EC to LAS supports in the Heihe River basin, China. To construct a point support variogram, a likelihood function of four parameters (nugget, sill, range, and shape parameters) conditioned by EC observations is used. The results testify to the applicability of ATARK as a solution for upscaling SHF from EC support to LAS support. |
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