Science Analytics and Synthesis (SAS)

Data and Tools

Filter Total Items: 52
Date published: March 1, 2017

National Fish Habitat Partnership (NFHP) 90 Meter Buffers of the NHDPlusV1 for the Conterminous United States

This geodatabase contains 90 meter buffers of streams within the National Hydrography Dataset Plus Version 1 (NHDPlusV1). These buffers were developed by converting NHDPlusV1 flowlines to a 30m grid, then running a euclidean allocation function in ArcPy to generate buffer zones. For flowlines representing artificial paths within NHD area river polygons, buffers extend from the outside edges...

Date published: February 1, 2017

Dam Metrics Representing Stream Fragmentation and Flow Alteration for the Conterminous United States Linked to the NHDPLUSV1

This CSV file contains 21 dam metrics representing stream fragmentation and flow alteration for nearly 2.3 million stream reaches in the conterminous USA. Dam metrics fall into four main categories: segment-based, count and density, distance-based, and cumulative reservoir storage (described below). These data were developed using spatially verified large dam locations (n=49,468) primarily...

Date published: February 1, 2017

National Fish Habitat Partnership (NFHP) 2015 Cumulative Habitat Condition Scores and Disturbance Indices for Hawaii Linked to Catchments of the Hawai'i Fish Habitat Partnership Stream Layer

This shapefile contains cumulative fish habitat condition index (HCI) scores and specific disturbance indices for local and network stream catchments as well as the downstream main channel catchment of perennial and intermittent streams reaches of the five main island of Hawai'i. In this dataset indices are linked to the Hawaii Fish Habitat Partnership (HFHP) stream layer (Tingley et al. in...

Date published: February 1, 2017

National Fish Habitat Partnership (NFHP) 2015 Human Disturbance Data for Hawaii

This CSV file contains landscape factors representing anthropogenic disturbances to stream habitats summarized within local and network stream catchments as well as the downstream main channel catchments of perennial and intermittent stream reaches of the five main islands of Hawai'i. The source datasets compiled and attributed to spatial units were identified as being: (1) meaningful for...

Date published: January 1, 2017

Protected Areas Database of the United States (PAD-US) Summary Statistics

This summary of the Protected Areas Database of the United States (PAD-US) is created to provide land managers and decision makers with a general summary of management for conservation, natural resource management and recreation. Area statistics include total acreage, acres by managing agency and percent protection. These summaries are available for the nation and by state. 

Date published: January 1, 2017

USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010

The USGS Southwest Repeat Photography Collection (‘Collection’), formerly named the Desert Laboratory Repeat Photography Collection, is now housed by the Southwest Biological Science Center (SBSC) in Flagstaff, Arizona. It contains images from the late 1800s to mid-2000s, and was assembled over decades by now retired USGS scientists Drs. Robert H. Webb and Raymond M. Turner. There are 8...

Date published: January 1, 2017

National Fish Habitat Partnership (NFHP) 2015 Human Disturbance Data for Alaska linked to HUC12 Watersheds

This CSV file contains landscape factors representing anthropogenic disturbances to stream habitats summarized within 6th level Hydrologic Unit Code (HUC12) watersheds of the Watershed Boundary Dataset. The source datasets compiled and attributed to spatial units were identified as being: (1) meaningful for assessing fluvial fish habitat; (2) consistent across the entire study area in the way...

Date published: January 1, 2017

National Fish Habitat Partnership (NFHP) 2015 Anthropogenic Disturbance Data for the Conterminous United States linked to the NHDPLUSV1

This CSV file contains landscape factors representing anthropogenic disturbances to stream habitats summarized within local and network stream catchments as well as 90 m local and network buffer of stream reaches throughout the conterminous U.S. The source datasets compiled and attributed to spatial units were identified as being: (1) meaningful for assessing fluvial fish habitat; (2)...

Date published: January 1, 2017

National Fish Habitat Partnership (NFHP) 2015 Cumulative Habitat Condition Scores and Disturbance Indices Linked to HUC 12 Watersheds of the Watershed Boundary Dataset

This shapefile contains fish habitat condition index (HCI) scores as well as specific disturbance indices for 6th level Hydrologic Unit Code (HUC12) watersheds of the Watershed Boundary Dataset. The source datasets compiled and attributed to spatial units were identified as being: (1) meaningful for assessing fluvial fish habitat; (2) consistent across the entire study area in the way that...

Date published: January 1, 2017

National Fish Habitat Partnership (NFHP) 2015 Cumulative Habitat Condition Scores and Disturbance Indices Linked to Catchments of Southeast Alaska

This shapefile contains cumulative fish habitat condition index (HCI) scores as well as specific disturbance indices for local and network catchments of Southeast Alaska. Catchments creation was leveraged through a project occurring at Michigan State University (Ross 2013). The source datasets compiled and attributed to spatial units were identified as being: (1) meaningful for assessing...

Date published: January 1, 2017

Shapefiles and Historical Aerial Photographs, Little Missouri River, 1939-2003

The data archive contains the aerial photographs and channel delineations used in our analysis. The images have been geo-referenced to the 1995 digital orthophoto quarter quadrangles as described by Miller and Friedman (2009). The separate images for each year can be viewed as a composite along with that year’s channel delineation using a geographic information system (GIS). The 2003...

Date published: October 31, 2016

Dam Removal Information Portal (DRIP)

The Dam Removal Information Portal (DRIP) is a web application where partners, scientists, and practitioners can find information on dam removals and associated scientific studies. It is a visualization tool, including a map and interactive charts, of a dam-removal literature review designed and developed by a working group at the USGS John...