Research Products

tRIBS Distributed Hydrologic Model

tRIBS is a fully-distributed hydrologic model based on a multi-resolution triangulated irregular network (TIN), developed for the simulation of plot, hillslope, and watershed hydrology. The continuous model preserves high-resolution data from remote sensing and field measurements for both warm and cold seasons. Model parallelization allows applications in regional basins. Our group uses tRIBS for desert, forest, and urban hydrology studies, as well as for impact assessments of climate and land use change.

VIC Land Surface Hydrology Model

VIC is a macroscale land surface model that uses a grid-based simulation to solve water and energy balances. The regional model is comprised of a three-layer characterization of the soil column and includes subgrid variability in vegetation, soil moisture storage capacity, topography, and precipitation. Streamflow outputs are routed separately using RVIC. Our group has made model improvements for irrigation, urban impervious areas and a clumped evaporation scheme in version VIC 5.1 for use in impact assessments of climate and land use change applied in urban, forest and desert settings.

VIC Domain Files: This dataset contains the VIC-5 compatible domain files over the contiguous United States (CONUS) region with the precipitation disaggregation parameters described in Bohn et al. (2019). 

NLCD-INEGI Land Cover: The NLCD-INEGI is the harmonized US-Mexico land cover dataset merged from NLCD and INEGI dataset for years 1992, 2001, and 2011.

INEGI Land Cover: The INEGI land cover dataset contains the land cover type over the Mexico that has been harmonized with the NLCD legend for years 1985, 1993, 2002, 2007, and 2011. 

MOD-LSP: The MOD-LSP is a gridded land surface parameter set derived from 17 years of MODIS observations and NLCD-INGI land cover classifications over the CONUS region at 0.0625° monthly resolution.

MIRCA-BC-USMX: The MIRCA-BC-USMX dataset contains a spatially explicit mean annual cycle of monthly planted and irrigated fractions at 0.0625 degree (6 km) spatial resolution over the continental United States and Mexico for years 1992, 2002, and 2012.

PITRI: The Precipitation Isosceles Triangle (PITRI) is the two-parameter deterministic approach that members of our team developed and utilize to more accurately estimate hourly diurnal cycles of precipitation from daily datasets.

VIC Scenarios in Central Arizona: This VIC model output dataset contains scenarios of combined effects of future urban growth and climate change on irrigation water use in central Arizona (1-km, hourly resolution from 1981-2100 and aggregated to 30-yr average).

2008-2012 Study in central Sonora, MX: Meteorological and ecosystem flux data for climate change impacts on net ecosystem productivity in a subtropical scrubland of northwestern México

2015 Phoenix, Arizona, Urban Study: Water, energy and carbon fluxes and ancillary meteorological measurements of four different urban landscapes in Phoenix, AZ

2017 NAM Study in central Sonora, MX: Flux and precipitation data from the North American Monsoon GPS Hydrometeorological Network 2017

2018-2020 Encanto and Paradise Valley Parks, Phoenix Study: Precipitation, soil water content and reference evapotranspiration at two urban parks in Phoenix, Arizona during 2018-2020.

2019-2020 Encanto Park, Phoenix Study: Water, energy and carbon fluxes as wells as ancillary meteorological and NDVI measurements from the Encanto Park Golf Course in Phoenix, AZ

2010-2020 AmeriFlux Site at Jornada Experimental Range: Water, energy and carbon fluxes at a long-term tower site within a mixed shrubland experimental watershed in southern NM

2011-2020 AmeriFlux Site at Santa Rita Experimental Range: Water, energy and carbon fluxes at a long-term tower site within a mesquite savanna experimental watershed in southern AZ

Hydrological Processes Data Note (Vivoni et al. 2021): Hydrologic data from long-term research catchments at the Santa Rita and Jornada Experimental Ranges

Flowing days Derived from CubeSat Imagery (Wang and Vivoni, 2022): Streamflow presence derived from small satellite imagery and ground observations in the Hassayampa River, Arizona from 2019-2021 (water years)

TIN-Index Analysis Package (TIAP): TIAP is a set of Arc/Info AML scripts that facilitate the creation of triangulated irregular network models. It provides various options for the user to generate computationally efficient terrain representations from DEM products.

METIS Parallel Partitioning Scripts: Scripts for the use of METIS for partitioning into sub-basins for use in the parallelized tRIBS model. Several options for partitioning are available based on graph theory (Vivoni et al. 2011).

NLCD-INEGI Creation Scripts: Scripts used to generate the NLCD_INEGI: Harmonized US-Mexico Land Cover Classifications from NLCD and INEGI, 1992/2001/2011 (Bohn et al. 2018).

MOD-LSP Creation Scripts: Scripts used to create the first version of MOD-LSP VIC parameters over the continental United States, Mexico, and Southern Canada for the VIC model (Bohn et al. 2018).

PITRI Creation Scripts: Scripts used to create the triangular distribution of precipitation over the continental United States (Bohn et al. 2019)