Publications

Andreadis, KM; Das, N; Stampoulis, D; Ines, A; Fisher, JB; Granger, S; Kawata, J; Han, EJ; Behrangi, A (2017). The Regional Hydrologic Extremes Assessment System: A software framework for hydrologic modeling and data assimilation. PLOS ONE, 12(5), e0176506.

Abstract
The Regional Hydrologic Extremes Assessment System (RHEAS) is a prototype software framework for hydrologic modeling and data assimilation that automates the deployment of water resources nowcasting and forecasting applications. A spatially-enabled database is a key component of the software that can ingest a suite of satellite and model datasets while facilitating the interfacing with Geographic Information System (GIS) applications. The datasets ingested are obtained from numerous space-borne sensors and represent multiple components of the water cycle. The object-oriented design of the software allows for modularity and extensibility, showcased here with the coupling of the core hydrologic model with a crop growth model. RHEAS can exploit multi-threading to scale with increasing number of processors, while the database allows delivery of data products and associated uncertainty through a variety of GIS platforms. A set of three example implementations of RHEAS in the United States and Kenya are described to demonstrate the different features of the system in real-world applications.

DOI:
10.1371/journal.pone.0176506

ISSN:
1932-6203