Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Orthophotograph of the Columbia River between Portland and The Dalles, Oregon, acquired in 1935 Orthophotograph of the Columbia River between Portland and The Dalles, Oregon, acquired in 1935
This data release consists of high quality georeferenced orthophoto mosaics of a 160 kilometer long portion of the Columbia River between Portland and The Dalles, Oregon created from aerial photographs collected in 1935 by the U.S. Army Corps of Engineers. The dataset comprises three GeoTIFF files, each covering about 40-60 kilometers. This metadata document summarizes the entire data...
San Bernard National Wildlife Refuge Texas: Using drone acquired 2019 imagery to classify sudden dieback vegetation in Coastal TX wetlands San Bernard National Wildlife Refuge Texas: Using drone acquired 2019 imagery to classify sudden dieback vegetation in Coastal TX wetlands
Climatic extremes are becoming more frequent with climate change and have the potential to cause major ecological shifts and ecosystem collapse. With the ecosystem collapse these normally healthy marshes fragment and convert to open water. Along the northern Gulf of Mexico, a coastal wetland in the San Bernard National Wildlife Refuge in Texas suffered significant and acute vegetation...
Field observation of wind waves and current velocity (2020) along the Fog Point Living Shoreline, Maryland Field observation of wind waves and current velocity (2020) along the Fog Point Living Shoreline, Maryland
This dataset contains measurements of wave height, peak wave period, and water depth taken every 0.5 hours from February 13 to June 12, 2020, at three wave gauge locations along the Fog Point shoreline in Martin National Wildlife Refuge, Maryland. These wave gauges were continuously sampled at 10 Hz, capturing 20-minute bursts every 30 minutes (peak wave periods longer than 7s were...
Traditional and geometric morphometric data describing wild and artificially reared cisco (Coregonus artedi) from lakes Huron and Ontario Traditional and geometric morphometric data describing wild and artificially reared cisco (Coregonus artedi) from lakes Huron and Ontario
These data describe morphometric (body shape) measurements of wild and artificially reared (i.e., raised in a laboratory or fish hatchery) cisco (Coregonus artedi) from lakes Huron and Ontario in the Laurentian Great Lakes. Specifically, this data release includes traditional morphometric data (i.e., measurements of fish specimens) describing wild and artificially reared cisco from Lake...
Egg Membrane Thickness in 13 Waterbird Species Egg Membrane Thickness in 13 Waterbird Species
Eggshells of 13 waterbird species were divided in half longitudinally and the outer eggshell membrane was removed from one of the halves. Eggshell thickness was measured for both eggshell halves, both with and without the outer eggshell membrane. The eggshell membrane thickness was calculated by taking the difference between the two thickness measurements. These data support the...
Airborne lidar survey of St Vincent, Eastern Caribbean, following the 2020-21 eruption of La Soufrière Volcano Airborne lidar survey of St Vincent, Eastern Caribbean, following the 2020-21 eruption of La Soufrière Volcano
La Soufrière Volcano is a 1,220 m high stratovolcano that occupies the northern half of the island of St. Vincent, Lesser Antilles, Eastern Caribbean. It has a long history of explosive and sometimes devastating eruptions. Beginning in December 2020 and ending in April 2021, La Soufrière Volcano produced a Volcano Explosivity Index (VEI) 4 eruption that greatly impacted the landscape...