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Elevation-Derived Hydrography in the Upper Shawsheen River Basin, Massachusetts Elevation-Derived Hydrography in the Upper Shawsheen River Basin, Massachusetts
The U.S. Geological Survey (USGS), in cooperation with the Air Force Civil Engineer Center (AFCEC), has compiled Geographic Information Systems (GIS) datasets. The spatial data layers provided in this data release are hydrography data derived from high-resolution lidar digital elevation models (DEM). They include a hydroline polyline shapefile used to hydro-enforce the high-resolution...
MODFLOW 6 models for simulating groundwater flow and a proposed remediation system in the sole-source aquifer system in southeastern Nassau County, New York MODFLOW 6 models for simulating groundwater flow and a proposed remediation system in the sole-source aquifer system in southeastern Nassau County, New York
This model archive contains files for a set of groundwater flow, particle tracking, and management optimization models that simulate the area around the Navy-Northrop-Grumman contamination plume on Long Island, New York. These models were developed as in insets from the Long Island Regional “parent” Model, from which perimeter boundary conditions were inherited. In addition to input and...
Code and data for 'Confirmation of a decline in the summer population of the monarch butterfly due to habitat loss' Code and data for 'Confirmation of a decline in the summer population of the monarch butterfly due to habitat loss'
This code describes graphical and analytical comparisons between monarch butterfly survey data collected during summer breeding, fall migration, and winter.
Plankton taxonomy and water quality in the Tualatin River Basin to the west of Portland, Oregon, during the summers of 2019-21 Plankton taxonomy and water quality in the Tualatin River Basin to the west of Portland, Oregon, during the summers of 2019-21
Water-quality data and plankton samples were collected at multiple locations within the Fernhill Natural Treatment wetland and along the Tualatin River, located to the west of Portland, Oregon, during the summers of 2018, 2019 and 2020. Water quality parameters collected include water temperature, specific conductance, dissolved oxygen, pH, turbidity, chlorophyll, and blue green algae...
Timelapse camera and webcam images of the fissure 8 lava flow during the 2018 lower East Rift Zone eruption of Kīlauea volcano, Island of Hawaiʻi Timelapse camera and webcam images of the fissure 8 lava flow during the 2018 lower East Rift Zone eruption of Kīlauea volcano, Island of Hawaiʻi
The 2018 lower East Rift Zone eruption of Kīlauea volcano, Island of Hawaiʻi, was one of the most destructive effusive eruptions worldwide in the past century, destroying over 700 structures (Neal and others, 2019; Meredith and others, 2022). Between May and September 2018, a total of 24 fissures opened, producing a lava flow field with an area of 36 km2. By the end of May, the eruption...
Campaign GPS measurements on the Island of Hawaiʻi collected by the Hawaiian Volcano Observatory in 2021 Campaign GPS measurements on the Island of Hawaiʻi collected by the Hawaiian Volcano Observatory in 2021
This release includes data collected during campaign GPS surveys at Kīlauea and Mauna Loa Volcanoes on the Island of Hawaiʻi in 2021. It includes data from a total of 63 sites occupied from January 1 to December 31, 2021. For each site, we include its measured raw data in daily files, Receiver INdependent EXchange (RINEX) files for each day, field log sheet(s), and associated metadata...