Search results for Visual Observations
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23 datasets for “Visual Observations”
- Data.gov Catalog
WDFW-Bonneville Dam observations
data.wa.govUpdated 10 Nov 2026
Visual observations of Chinook salmon ascending fish ladders at Bonneville Dam by ecotype (Bright and Tule) and size …
- JSON
- XML
- CSV
- Data.gov Catalog
Heatmap visualizations of arsenic, cadmium, and copper concentrations in streambed sediment in the Clark Fork River, Montana, 1996-2020
U.S. Geological SurveyUpdated 15 Oct 2021
… Here we use concentration gradient “heat maps” as a visualization tool to report annual mean arsenic, cadmium and …
- XML
- Data.gov Catalog
Viewsheds from Key Observation Points for San Antonio Missions National Historical Park (SAAN)
National Park ServiceUpdated 1 Mar 2013
Visibility viewsheds incorporate influences of distance from observer, object size and limits of human visual acuity to define …
- XML
- ZIP
- Data.gov Catalog
Viewsheds from Key Observation Points for Lewis and Clark National Historic Trail (LECL)
National Park ServiceUpdated 1 Mar 2013
Visibility viewsheds incorporate influences of distance from observer, object size and limits of human visual acuity to define …
- ZIP
- XML
- Data.gov Catalog
C0212SC_video_observations
U.S. Geological SurveyUpdated 21 Mar 2023
… of the camera, the time each observation was started, and the visual observations of geologic and biologic habitat.
- XML
- Data.gov Catalog
Investigating Detection and Roadside Bias in Surveys of Grassland Birds in the Northern Great Plains, ND 2015, MT 2017-2018
U.S. Geological SurveyUpdated 7 Jul 2023
… Assignment of surveyors to individual sites followed a design protocol that allows observer effects to also be estimated …
- XML
- Data.gov Catalog
Fireball And Bolide Reports
data.nasa.govUpdated 29 May 2025
… that reaches a visual magnitude of -3 or brighter when seen at the observer's zenith. Objects causing …
- JSON
- RDF
- XML
- CSV
- Data.gov Catalog
Migrating Bird Survey Data along the San Pedro River and its Tributaries, Southeastern Arizona, 1989-1994
U.S. Geological SurveyUpdated 20 Aug 2020
… Bird detection and species identification were based on visual sighting, song, and call. Recorded observations were the number …
- XML
- Data.gov Catalog
Guam, Mariana swiftlet counts, 2019-2023
U.S. Geological SurveyUpdated 23 Oct 2023
… limitations of traditional counting methods, which rely on visual observations at cave entrances and are prone to inaccuracies …
- XML
- Data.gov Catalog
Benthic habitats of the coral reef ecosystem off the coast of Kaloko-Honokohau (KAHO) National Historical Park
U.S. Geological SurveyUpdated 19 Oct 2020
… Polygons were hand-digitized from visual interpretation of aerial photography and SHOALS bathymetry data. We also utilized in …
- XML
- data.gov.au
Gully Presence Map 5km 2012 Burdekin Catchment
Environment, Tourism, Science and InnovationUpdated 11 Nov 2025
… The gully presence assessment is based on several methods including visual observation, output from previous modelling work, bioregion …
- SPATIAL DATA FORMAT
- XML
- Queensland Government Open Data
Gully Presence Map 5km 2012 Burdekin Catchment
Environment, Tourism, Science and InnovationUpdated 20 Feb 2023
… The gully presence assessment is based on several methods including visual observation, output from previous modelling work, bioregion …
- SPATIAL DATA FORMAT
- XML
- Data.gov Catalog
Salmon spawning locations (redds) mapped in the field along the American River, California, November 5-7, 2018
U.S. Geological SurveyUpdated 20 Aug 2020
… a boat, or by an observer in an aircraft or an interpreter visually examining aerial images. The goal …
- XML
- Data.gov Catalog
Excess Deaths Associated with COVID-19
Centers for Disease Control and PreventionUpdated 22 Sept 2026
… Excess deaths are typically defined as the difference between observed numbers of deaths and expected numbers. This visualization …
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- XML
- Data.gov Catalog
LANDFIRE 2016 Remap Existing Vegetation Cover (EVC) American Samoa
U.S. Geological SurveyUpdated 11 Jan 2023
… obtained from plot-level ground-based visual assessments and lidar observations. These are combined with Landsat imagery (from …
- XML
- Data.gov Catalog
LANDFIRE 2016 Remap Existing Vegetation Cover (EVC) Guam Northern Mariana Islands
U.S. Geological SurveyUpdated 11 Jan 2023
… obtained from plot-level ground-based visual assessments and lidar observations. These are combined with Landsat imagery (from …
- XML
- Data.gov Catalog
Streamflow gain/loss in the Republican River Basin, Nebraska, October 1975
U.S. Geological SurveyUpdated 17 Nov 2020
… Flow was observed visually to be zero, was measured, or was estimated at 64 sites. Tributaries were followed …
- XML
- Data.gov Catalog
Archive of Digital Boomer and Chirp Seismic Reflection Data Collected During USGS Cruise 04SCC01 in Terrebonne, Timbalier, and Barataria Bays and Lake Pelto, Louisiana, June and July 2004
U.S. Geological SurveyUpdated 13 Oct 2020
… GIS information, Field Activity Collection System (FACS) logs, observer's logbook, and formal FGDC metadata. Filtered and gained …
- XML
- Data.gov Catalog
Archive of Digital Boomer and Chirp Seismic Reflection Data Collected During USGS Cruise 03SCC03 in Lake Pelto and Timbalier and Terrebonne Bays, Louisiana, September 2003
U.S. Geological SurveyUpdated 13 Oct 2020
… GIS information, Field Activity Collection System (FACS) logs, observer's logbook, and formal FGDC metadata. Filtered and gained …
- XML
- Data.gov Catalog
Archive of Digital Boomer Seismic Reflection Data Collected During USGS Cruises 94GFP01, 95GFP01, 96GFP01, 97GFP01, and 98GFP02 in Lakes Pontchartrain, Borgne, and Maurepas, Louisiana, 1994-1998
U.S. Geological SurveyUpdated 13 Oct 2020
… This report serves as an archive of unprocessed digital boomer seismic reflection data, trackline maps, navigation files, observers …
- XML