Site Selection

Hollister site –Sagebrush (Artemisia tridentata)

Site Description (Hol)

Raft River site -- invasive cheatgrass (bromus tectorum) with some bunch grass

Site Description (RR)

Island Park site -- Alpine Forest (lodgepole (pinus contorta))

Site Description (IP)

IDAHO NSF - EPSCoR

Climate Change Impacts Project -- Flux Measurement



Climate Change is a world wide problem that affects every country on earth. Understanding the processes and factors that control or affect ecosystem response to climate change is essential to mitigate impacts. Studying the regional to global radiation balance, hydrologic energy, water and carbon dioxide fluxes is important to understand effects of climate change on ecosystem health and evolution, including impacts of invasive species such as cheatgrass (bromus tectorum) in the western US. The exchanges of water and carbon at the plant-atmosphere interface are coupled through the active control of leaf and needle stomata on the exchange of gas into or out of leaves with the atmosphere and by effects of direct evaporation from soil. Given the importance of carbon uptake and vapor outputs, the ability to quantify the uptake is important, particularly in large areas with significant capability to assimilate carbon.


In the upper Snake River system of Idaho, the most common ecosystems, besides farms, are alpine forest, sage brush, invasive cheatgrass and bunch grass. A primary goal of this research is to contribute toward a better understanding and methods of quantifying the magnitude, timing, distribution and coupling of carbon, energy and water fluxes in these three dominant natural ecosystems, including effects of burning, and improve the accuracy of modeling sensible heat flux (H) and evapotranspiration (ET) via land surface process and remote sensing models.

Surface energy flux(s) is important for understanding hydrologic exchanges and energy exchange dynamics around the world. This study looks at how these hydrologic exchanges and dynamics are effected by climate change and differences in how vegetation “meters” out scarce water. It is especially important to determine the latent heat flux from evapotranspiration (ET) to examine exchanges of energy and mass between the land, hydrosphere, atmosphere, and biosphere.



Helpful Links

Moscow EPSCoR Climate Change Site

Idaho NSF EPSCoR website

CUAHSI data server

Kimberly ID, Research Center

NSF info on EPSCoR



Data Use Policy PDF























Contacts: Lead principal investigators

Dr. Rick Allen (rallen at kimberly dot uidaho dot edu) 208-423-6601,

Dr. Matt Germino (germmatt at isu dot edu) 208-282-5680

Dr. V. Sridhar (vsridhar at boisestate dot edu) 208-426-3710





management specialists

Jeremy Greth (jgreth at kimberly dot uidaho dot edu) 208-423-6650

Dr. Wenguang Zhao (wzhao at kimberly dot uidaho dot edu) 208-423-6669

Clarence Robison (robison at kimberly dot uidaho dot edu) 208-423-6610