Southwest Biological Science Center

Data and Tools

Filter Total Items: 157
Date published: October 23, 2019

Surface water area data for isolated stock ponds in southern Arizona, USA and northern Sonora, Mexico

These data were compiled to compare the ability of matched filtering (MF) and linear spectral mixture analysis (LSMA) to map isolated wetland sites using Landsat 5 Thematic Mapper (TM) and Landsat 8 Operational Land Imager (OLI) data. We analyzed 81 stock ponds corresponding to a 2007 Landsat 5 image and 73 sites corresponding to a 2014 Landsat 8 image in southern Arizona and northern Sonora,...

Date published: October 1, 2019

Genetically informed seed transfer zones for Pleuraphis jamesii, Sphaeralcea parvifolia, and Sporobolus cryptandrus across the Colorado Plateau and adjacent regions

These data were compiled to provide seed transfer and native plant materials development guidance to managers and practitioners across the Colorado Plateau and in adjacent regions. This data release contains empirical seed transfer zones derived from molecular genetic data for Pleuraphis jamesii (syn. Hilaria jamesii), Sphaeralcea parvifolia, and Sporobolus cryptandrus. Pleuraphis jamesii...

Date published: September 19, 2019

Salinity yield modeling spatial data for the Upper Colorado River Basin, USA

These data (vector and raster) were compiled for spatial modeling of salinity yield sources in the Upper Colorado River Basin (UCRB) and describe different scales of watersheds in the Upper Colorado River Basin (UCRB) for use in salinity yield modeling. Salinity yield refers to how much dissolved salts are picked up in surface waters that could be expected to be measured at the watershed...

Date published: September 17, 2019

Historical and 21st century soil temperature and moisture data for drylands of western U.S. and Canada

These data represent simulated soil temperature and moisture conditions for current climate, and for future climate represented by all available climate models at two time periods during the 21st century. These data were used to: 1) quantify the direction and magnitude of expected changes in several measures of soil temperature and soil moisture, including the key variables used to...

Date published: September 4, 2019

Juvenile native fish and sedative data from a laboratory and field experiment

These data were compiled for a study evaluating if rare or endangered fishes (e.g., Humpback Chub and Bonytail) can be transported in a shipping bag with 1-L of water and minimal sedative into remote locations. There were two components (laboratory trials and a field trial) of the study conducted in 2014 and 2017. Laboratory trials were conducted at the Rocky Mountain Research Station in...

Date published: June 12, 2019

GCMRC GIS Base Map Viewer 2.0

The Geospatial team of the Grand Canyon Monitoring and Research Center maintains an enterprise GIS system built upon ESRI ArcGIS Server and Portal applications.  This web application provides access to many of the most commonly used GIS layers and base data information used by GCMRC in support of on-going science projects. 

Click here to launch the Base Map Viewer (2.0) in a separate...

Date published: June 12, 2019

GCMRC REST Services Page

The Geospatial team of Grand Canyon Monitoring and Research Center maintains an enterprise GIS system built upon ESRI ArcGIS Server and Portal applications.  From this platform, geospatial content can be consumed in a variety of forms, from custom-built web applications to content hosted on ESRI's ArcGIS Online to direct access of web map services provided here on our REST services page.

Date published: May 10, 2019

Predicted Shorelines for High Flows on the Colorado River Application

This application highlights modeled flows of the Colorado River for a discharge of 41,000 cubic feet per second (cfs) that is approximate to recent (2012 - 2018) and future anticipated water releases associated with a High Flow Experiments conducted from Glen Canyon Dam near Page, Arizona.  These data are to help visualize the water levels during High Flow Events in relation to other map...

Date published: April 30, 2019

Sandbar Monitoring Sites - Remote Camera Photographs Application

GCMRC and Northern Arizona University have engaged in long-term monitoring of 45 sandbar sites along the Colorado River in Grand Canyon for close to three decades.  Remote cameras have been established to monitor sandbar changes in between site surveys that occur every Fall.   This application provides access to thousands of photos, with an option to view photos around specific high flow...

Date published: April 5, 2019

DATA RELEASE - Predictive maps of 2D and 3D surface soil properties and associated uncertainty for the Upper Colorado River Basin, USA

Raster datasets are maps of soil surface properties that were used in analyzing different approaches for digital soil mapping. They include maps of soil pH, electrical conductivity, soil organic matter, and soil summed fine and very fine sand contents that were created using 2D and 3D modeling strategies. For each property a map was created using 2D and 3D approaches to compare the mapped...

Date published: January 1, 2019

Riparian species vegetation classification data for the Colorado River within Grand Canyon derived from 2013 airborne imagery

These data are a species-level classification map of riparian vegetation in the Colorado River riparian corridor in Grand Canyon, Arizona, USA. The classification is derived from 0.2 m pixel resolution multispectral aerial imagery acquired in May 2013. The classification spans the riparian zone of the river corridor between Glen Canyon Dam near Page, Arizona, and Lake Mead at Pearce Ferry,...

Date published: January 1, 2019

Demographic modeling data (including code) at various sites in the Great Basin, USA

These data were compiled to determine whether transient population dynamics substantially alter population growth rates of sagebrush after disturbance, impede resilience and restoration, and in turn drive ecosystem transformation. Data were collected from 2014-2016 on sagebrush population height distributions at 531 sites across the Great Basin that had burned and were subsequently reseeded by...