With a focus on the water-food nexus, the Biosphere-relevant Earth system Model (BioEarth; Adam et al., 2014) is an open-source, regional-scale, CRB-focused Earth system modeling project incorporating biogeochemistry, dynamic vegetation in managed and unmanaged landscapes, and atmospheric, aquatic, and economic processes. BioEarth uses a “bottom up” approach to better understand the implications of agriculture and natural resource management strategies on Earth system dynamics at finer spatial scales than are currently possible with most regional-scale models. BioEarth’s tightly coupled hydrology, water regulation, and cropping systems models will be leveraged for this project.
Group Members Involved in BioEarth: Jennifer Adam, Ryan Hull, Mingliang Liu, Keyvan Malek, Kirti Rajagopalan, and Julian Reyes
The Office of Columbia River (OCR) continues to aggressively pursue development of conservation and water supply projects to meet eastern Washington’s economic and environmental needs. To support this mission, every five years OCR prepares and submits to the Washington State Legislature a long-term water supply and demand forecast (Forecast). The Forecast provides a generalized, system-wide assessment of how future environmental and economic conditions are likely to change water supply and demand by 2030. Understanding where additional water supply is most critically needed will assist OCR in making smarter investments that help improve water supply for eastern Washington’s instream and out-of-stream users. The Forecast project is an application of BioEarth modeling tools.
Group Members involved in the Forecast Project: Jennifer Adam, Muhammad Barik, Rushi Begun, Mingliang Liu, Keyvan Malek, Kirti Rajagopalan, and Sasha Richey.
The USDA-funded WISDM project aims to understand how the coevolution of CRB biophysical and social systems, in the face of changing climate and land use change, impacts the sustainability of water quantity/quality, and agricultural productivity. WISDM builds on BioEarth through elaboration and downscaling of BioEarth-Land via finer-scale hydrologic and water management modeling for key watersheds across the CRB.
Group Members involved in the WISDM Project: Jennifer Adam, Heather Baxter, Rushi Begum, Keyvan Malek, and Tung Nguyen.
Fire management in the Western U.S. is facing unprecedented challenges in response to climate change, growing populations, and the expanding wildland-urban interface. Although fires are an intrinsic component of many ecosystems, a combination of biophysical and socioeconomic factors can turn them into social or natural disasters, with compounding negative impacts on both ecosystems and human communities. To address these new challenges, we must account for ecological, social, economic, and political dynamics over multiple spatial and temporal scales. Simulation modeling is a critical tool for exploring these complex feedbacks given the uncertainties associated with changing climate and growing populations. We are developing a modeling framework, FireEarth, which expands the Biosphere-relevant Earth system model (BioEarth) to incorporate fire, insect outbreaks, drought, and erosion. This framework will be used to simulate episodic disturbance events and their impacts on hydrologic and biogeochemical cycles. BioEarth incorporates the ecohydrologic model RHESSys to simulate biophysical processes in watersheds.
Group Members involved in FireEarth: Jennifer Adam, Erin Hanan, Mingliang Liu, and Ren Jianning.