Characterizing land surface processes: A quantitative analysis using air-ground thermal orbits
- Characterizing land surface processes: A quantitative analysis using air-ground thermal orbits
- Smerdon, Jason E.
Stevens, M. Bruce
- Lamont-Doherty Earth Observatory
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- Journal of Geophysical Research
- A quantitative analysis of thermal orbits is developed and applied to modeled air and ground temperatures. Thermal orbits are phase-space representations of air and ground temperature relationships that are generated by plotting daily or monthly ground temperatures against air temperatures. Thermal orbits are useful descriptive tools that provide straightforward illustrations of air and ground temperature relationships in the presence of land surface processes related to snow cover, soil freezing, and vegetation effects. The utility of thermal orbits has been limited, however, by the lack of quantitative analyses that describe changes in orbits across different environments or in time. This shortcoming is overcome in the present study by developing a linear regression analysis of thermal orbits that allows changes to be tracked in time and space and as a function of depth within the subsurface. The theory that underlies the thermal orbit regression analysis is developed herein, and the utility of the application is demonstrated using controlled model experiments.
- Atmospheric sciences
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- Suggested Citation:
- Jason E. Smerdon, Hugo Beltrami, Chance Creelman, M. Bruce Stevens, 2009, Characterizing land surface processes: A quantitative analysis using air-ground thermal orbits, Columbia University Academic Commons, http://hdl.handle.net/10022/AC:P:10873.