Timeline / Data.gov — Environment Datasets
changed Source changed
A new raw object was archived. Both versions are preserved. 1940 line(s) added, 1699 line(s) removed.
Evidence
| Source | Data.gov — Environment Datasets |
|---|---|
| Agency | Data.gov |
| URL | https://api.gsa.gov/technology/datagov/v4/search?q=environment&sort=last_harvested_date&per_page=100&api_key=${DATAGOV_API_KEY} |
| Observed by | Civic Memory, directly, on 2026-09-20T06:16:20+00:00 |
| Content type | application/json |
| Current object |
72b3689058b186cb1ec83ebcf83611db6ad64e506de236e50e9577fe44277354
download raw
metadata
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| Previous object |
765c8b821ba4890ef508f92a69b85726cbf20e251a5c0199625ed5929c09af13
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metadata
|
What changed derived
This diff is not evidence. It was produced by
civic-memory.diff_engine 1.1.0 at
2026-09-20T06:16:20+00:00 by normalizing the two archived objects above. The
objects are authoritative; this reading of them can be regenerated or deleted
without loss. 1940 line(s) added, 1699 line(s) removed.
--- previous +++ current @@ -1,13 +1,13 @@ { - "after": "WzE3ODk2MDU3NTQxMDYsOC41NDM4OTgsMSwiZjE5NmU0MjktMTk5NS00YTY4LWFhNWMtZTA0YTQyM2VhZjc4Il0=", + "after": "WzE3ODk2MDU3NDY3OTksOC42NzY1OTgsMywiZmRmMTYxMzAtYzlhMS00NzdhLWEyZGEtNTA5MDMyODFiOWMyIl0=", "results": [ { - "_score": 10.166756, + "_score": 10.129587, "_sort": [ - 1789862959335, - 10.166756, + 1789866380535, + 10.129587, 2, - "7ce335ed-1386-489a-ae8a-98892f03948e" + "3e06019b-49df-4465-826b-e2cdfd526c08" ], "dcat": { "accessLevel": "public", @@ -19,11 +19,11 @@ "fn": "Ryan F. Thompson", "hasEmail": "mailto:rcthomps@usgs.gov" }, - "description": "This geospatial data set contains the points collected by the echosounder on transects in the \ndownstream project reach surrounding the construction area at River Mile 761.4 below Gavins \nPoint Dam on the Missouri River in South Dakota. This survey provides channel cross sections \napproximately every 500 feet prior to construction of Emergent Sandbar Habitat near River \nMile 761.4", + "description": "This data set contains land surface elevations on dry and wadeable portions of transects for \npre-construction hydrographic surveys on the Missouri River below Gavins Point Dam for the \nEmergent Sandbar Habitat construction project near River Mile 761.4. Data tie- ins to local \nbenchmarks also are included", "distribution": [ { "@type": "dcat:Distribution", - "accessURL": "https://doi.org/10.5066/P9SYH1KX", + "accessURL": "https://doi.org/10.5066/P96EIQUW", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", @@ -32,16 +32,16 @@ { "@type": "dcat:Distribution", "description": "The metadata original format", - "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.e8a3fa64-8a22-4a12-b3cc-33df260133f3.xml", + "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.ef9f62e5-57fc-4735-a1eb-52ee4c12dab1.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata" } ], - "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e8a3fa64-8a22-4a12-b3cc-33df260133f3", + "identifier": "http://datainventory.doi.gov/id/dataset/USGS_ef9f62e5-57fc-4735-a1eb-52ee4c12dab1", "keyword": [ "Hydrographic Survey", - "USGS:e8a3fa64-8a22-4a12-b3cc-33df260133f3", + "USGS:ef9f62e5-57fc-4735-a1eb-52ee4c12dab1", "environment", "geoscientificInformation", "inlandWaters" @@ -51,30 +51,30 @@ "@type": "org:Organization", "name": "U.S. Geological Survey" }, - "spatial": "-96.799768, 42.654850, -96.701205, 42.670947", - "theme": [ - "geospatial" - ], - "title": "Bathymetry data for the pre-construction survey of the Emergent Sandbar Habitat project at river mile 761.4 downstream from Gavins Point dam on the Missouri River." - }, - "description": "This geospatial data set contains the points collected by the echosounder on transects in the \ndownstream project reach surrounding the construction area at River Mile 761.4 below Gavins \nPoint Dam on the Missouri River in South Dakota. This survey provides channel cross sections \napproximately every 500 feet prior to construction of Emergent Sandbar Habitat near River \nMile 761.4", + "spatial": "-97.230886, 42.651279, -96.582338, 42.966037", + "theme": [ + "geospatial" + ], + "title": "GPS data collected for preconstruction hydrographic surveys of Missouri River downstream from Gavins Point Dam near river mile 761.4" + }, + "description": "This data set contains land surface elevations on dry and wadeable portions of transects for \npre-construction hydrographic surveys on the Missouri River below Gavins Point Dam for the \nEmergent Sandbar Habitat construction project near River Mile 761.4. Data tie- ins to local \nbenchmarks also are included", "distribution_titles": [ "Digital Data", "Original Metadata" ], - "harvest_record": "https://catalog.data.gov/harvest_record/8165fb85-27c4-42ec-a12e-f7ab8515e3ab", - "harvest_record_raw": "https://catalog.data.gov/harvest_record/8165fb85-27c4-42ec-a12e-f7ab8515e3ab/raw", + "harvest_record": "https://catalog.data.gov/harvest_record/402df627-db1b-4558-8330-5eb3ac8290ce", + "harvest_record_raw": "https://catalog.data.gov/harvest_record/402df627-db1b-4558-8330-5eb3ac8290ce/raw", "has_download": true, "has_spatial": true, - "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e8a3fa64-8a22-4a12-b3cc-33df260133f3", + "identifier": "http://datainventory.doi.gov/id/dataset/USGS_ef9f62e5-57fc-4735-a1eb-52ee4c12dab1", "keyword": [ "Hydrographic Survey", - "USGS:e8a3fa64-8a22-4a12-b3cc-33df260133f3", + "USGS:ef9f62e5-57fc-4735-a1eb-52ee4c12dab1", "environment", "geoscientificInformation", "inlandWaters" ], - "last_harvested_date": "2026-09-20T00:09:19.335271", + "last_harvested_date": "2026-09-20T01:06:20.535116", "organization": { "aliases": [ "dept" @@ -91,33 +91,33 @@ "parent_identifier": null, "popularity": 2, "publisher": "U.S. Geological Survey", - "slug": "bathymetry-data-for-the-pre-construction-survey-of-the-emergent-sandbar-habitat-project-at", + "slug": "gps-data-collected-for-preconstruction-hydrographic-surveys-of-missouri-river-downstream-f", "spatial_centroid": { - "lat": 42.6612888, - "lon": -96.7603428 + "lat": 42.777182200000006, + "lon": -96.9714668 }, "spatial_shape": { "coordinates": [ [ [ - -96.799768, - 42.65485 - ], - [ - -96.799768, - 42.670947 - ], - [ - -96.701205, - 42.670947 - ], - [ - -96.701205, - 42.65485 - ], - [ - -96.799768, - 42.65485 + -97.230886, + 42.651279 + ], + [ + -97.230886, + 42.966037 + ], + [ + -96.582338, + 42.966037 + ], + [ + -96.582338, + 42.651279 + ], + [ + -97.230886, + 42.651279 ] ] ], @@ -126,16 +126,16 @@ "theme": [ "geospatial" ], - "title": "Bathymetry data for the pre-construction survey of the Emergent Sandbar Habitat project at river mile 761.4 downstream from Gavins Point dam on the Missouri River.", + "title": "GPS data collected for preconstruction hydrographic surveys of Missouri River downstream from Gavins Point Dam near river mile 761.4", "type": "dataset" }, { - "_score": 10.131106, + "_score": 7.8338327, "_sort": [ - 1789862537165, - 10.131106, + 1789866217529, + 7.8338327, 4, - "fa1dc7f2-b2d9-4436-bd3e-e2d07b89003a" + "57a06078-3313-49c0-8385-250e691c3ae8" ], "dcat": { "accessLevel": "public", @@ -144,14 +144,14 @@ ], "contactPoint": { "@type": "vcard:Contact", - "fn": "Ryan F. Thompson", - "hasEmail": "mailto:rcthomps@usgs.gov" - }, - "description": "This geospatial data set contains the points collected by the echosounder on transects in the \nupstream project reach surrounding the construction area at River Mile 769.8 below Gavins \nPoint Dam on the Missouri River in South Dakota. This survey provides channel cross sections \nfor new and selected existing transects following construction of Emergent Sandbar Habitat \nnear River Mile 769.8", + "fn": "Philp T. Harte", + "hasEmail": "mailto:ptharte@usgs.gov" + }, + "description": "The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency and\nthe New Hampshire Department of Environmental Services, developed a model for used with \nMODFLOW-2005 and MODPATH5 to evaluate groundwater flow and advective transport under\npre- and post-remediation conditions in the crystalline-rock aquifer in the vicinity of the Savage\nMunicipal Water-Supply Well Superfund site Milford, New Hampshire. In addition, a previously\ndeveloped model (https://doi.org/10.3133/sir20045176 and https://doi.org/10.3133/ofr20121079)\nwas used with MOC3D to evaluate the solute-transport of tetrachloroethylene (PCE). In 2010 \nPCE, a chlorinated volatile organic compound, was detected in groundwater from monitoring \nwells tapping the deep (more than 300 feet below land surface) fractures in a crystalline-rock \naquifer. The crystalline-rock aquifer underlies the Milford-Souhegan glacial-drift (MSGD) aquifer\n(a high water-producing aquifer) and the Savage Municipal Water-Supply Well Superfund site. \nResidential water-supply wells are within one-quarter of a mile of the PCE-contaminated \nmonitoring wells and many are likely installed in similar rock types and formations as those of\nthe monitoring wells. The need to understand and quantify flow and transport in the crystalline-\nrock aquifer is crucial in assessing strategies for remediation. The current, area-wide model \nsimulates flow in the crystalline-rock aquifer and covers a much larger area than previous models\nwith the goal of improving the computation of groundwater flow from distal locations to the \nresidential wells and the area. This USGS data release contains all of the input and output files\n for the simulations described in the associated model documentation report \n(https://doi.org/10.3133/sir20205137).", "distribution": [ { "@type": "dcat:Distribution", - "accessURL": "https://doi.org/10.5066/P9M2Z2O7", + "accessURL": "https://doi.org/10.5066/F7J102FK", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", @@ -160,49 +160,73 @@ { "@type": "dcat:Distribution", "description": "The metadata original format", - "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.e26db77b-f122-4ba0-b2ad-f20c347003f5.xml", + "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.226705a8-2a0e-4dda-8e36-84d2074d94c5.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata" } ], - "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e26db77b-f122-4ba0-b2ad-f20c347003f5", - "keyword": [ - "Hydrographic Survey", - "USGS:e26db77b-f122-4ba0-b2ad-f20c347003f5", + "identifier": "http://datainventory.doi.gov/id/dataset/USGS_226705a8-2a0e-4dda-8e36-84d2074d94c5", + "keyword": [ + "Groundwater", + "Groundwater Model", + "InlandWaters", + "MOC3D", + "MODFLOW-2005", + "MODPATH", + "Milford", + "Milford-Souhegan River Valley", + "New Hampshire", + "Savage Municipal Water Supply Well Superfund site", + "Solute transport", + "USGS:226705a8-2a0e-4dda-8e36-84d2074d94c5", "environment", "geoscientificInformation", - "inlandWaters" - ], - "modified": "2026-02-17T00:00:00Z", + "inlandWaters", + "remediation", + "usgsgroundwatermodel" + ], + "modified": "2025-08-05T00:00:00Z", "publisher": { "@type": "org:Organization", "name": "U.S. Geological Survey" }, - "spatial": "-96.912030, 42.701452, -96.822611, 42.736188", - "theme": [ - "geospatial" - ], - "title": "Bathymetry data for the post-construction survey of the Emergent Sandbar Habitat project at river mile 769.8 downstream from Gavins Point Dam on the Missouri River." - }, - "description": "This geospatial data set contains the points collected by the echosounder on transects in the \nupstream project reach surrounding the construction area at River Mile 769.8 below Gavins \nPoint Dam on the Missouri River in South Dakota. This survey provides channel cross sections \nfor new and selected existing transects following construction of Emergent Sandbar Habitat \nnear River Mile 769.8", + "spatial": "-71.761976, 42.800697, -71.642849, 42.889263", + "theme": [ + "geospatial" + ], + "title": "MODFLOW-2005, MODPATH, and MOC3D used for groundwater flow simulation, pathlines analysis, and solute transport in the crystalline-rock aquifer in the vicinity of the Savage Municipal Water-Supply Well Superfund Site, Milford, New Hampshire" + }, + "description": "The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency and\nthe New Hampshire Department of Environmental Services, developed a model for used with \nMODFLOW-2005 and MODPATH5 to evaluate groundwater flow and advective transport under\npre- and post-remediation conditions in the crystalline-rock aquifer in the vicinity of the Savage\nMunicipal Water-Supply Well Superfund site Milford, New Hampshire. In addition, a previously\ndeveloped model (https://doi.org/10.3133/sir20045176 and https://doi.org/10.3133/ofr20121079)\nwas used with MOC3D to evaluate the solute-transport of tetrachloroethylene (PCE). In 2010 \nPCE, a chlorinated volatile organic compound, was detected in groundwater from monitoring \nwells tapping the deep (more than 300 feet below land surface) fractures in a crystalline-rock \naquifer. The crystalline-rock aquifer underlies the Milford-Souhegan glacial-drift (MSGD) aquifer\n(a high water-producing aquifer) and the Savage Municipal Water-Supply Well Superfund site. \nResidential water-supply wells are within one-quarter of a mile of the PCE-contaminated \nmonitoring wells and many are likely installed in similar rock types and formations as those of\nthe monitoring wells. The need to understand and quantify flow and transport in the crystalline-\nrock aquifer is crucial in assessing strategies for remediation. The current, area-wide model \nsimulates flow in the crystalline-rock aquifer and covers a much larger area than previous models\nwith the goal of improving the computation of groundwater flow from distal locations to the \nresidential wells and the area. This USGS data release contains all of the input and output files\n for the simulations described in the associated model documentation report \n(https://doi.org/10.3133/sir20205137).", "distribution_titles": [ "Digital Data", "Original Metadata" ], - "harvest_record": "https://catalog.data.gov/harvest_record/6d94729f-114f-4b00-aeec-b6a60e1e8eb4", - "harvest_record_raw": "https://catalog.data.gov/harvest_record/6d94729f-114f-4b00-aeec-b6a60e1e8eb4/raw", + "harvest_record": "https://catalog.data.gov/harvest_record/c4df0630-e086-4396-94ad-c5952b7899b6", + "harvest_record_raw": "https://catalog.data.gov/harvest_record/c4df0630-e086-4396-94ad-c5952b7899b6/raw", "has_download": true, "has_spatial": true, - "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e26db77b-f122-4ba0-b2ad-f20c347003f5", - "keyword": [ - "Hydrographic Survey", - "USGS:e26db77b-f122-4ba0-b2ad-f20c347003f5", + "identifier": "http://datainventory.doi.gov/id/dataset/USGS_226705a8-2a0e-4dda-8e36-84d2074d94c5", + "keyword": [ + "Groundwater", + "Groundwater Model", + "InlandWaters", + "MOC3D", + "MODFLOW-2005", + "MODPATH", + "Milford", + "Milford-Souhegan River Valley", + "New Hampshire", + "Savage Municipal Water Supply Well Superfund site", + "Solute transport", + "USGS:226705a8-2a0e-4dda-8e36-84d2074d94c5", "environment", "geoscientificInformation", - "inlandWaters" - ], - "last_harvested_date": "2026-09-20T00:02:17.165493", + "inlandWaters", + "remediation", + "usgsgroundwatermodel" + ], + "last_harvested_date": "2026-09-20T01:03:37.529182", "organization": { "aliases": [ "dept" @@ -219,33 +243,33 @@ "parent_identifier": null, "popularity": 4, "publisher": "U.S. Geological Survey", - "slug": "bathymetry-data-for-the-post-construction-survey-of-the-emergent-sandbar-habitat-project-a", + "slug": "modflow-2005-modpath-and-moc3d-used-for-groundwater-flow-simulation-pathlines-analysis-and", "spatial_centroid": { - "lat": 42.7153464, - "lon": -96.8762624 + "lat": 42.8361234, + "lon": -71.7143252 }, "spatial_shape": { "coordinates": [ [ [ - -96.91203, - 42.701452 - ], - [ - -96.91203, - 42.736188 - ], - [ - -96.822611, - 42.736188 - ], - [ - -96.822611, - 42.701452 - ], - [ - -96.91203, - 42.701452 + -71.761976, + 42.800697 + ], + [ + -71.761976, + 42.889263 + ], + [ + -71.642849, + 42.889263 + ], + [ + -71.642849, + 42.800697 + ], + [ + -71.761976, + 42.800697 ] ] ], @@ -254,16 +278,16 @@ "theme": [ "geospatial" ], - "title": "Bathymetry data for the post-construction survey of the Emergent Sandbar Habitat project at river mile 769.8 downstream from Gavins Point Dam on the Missouri River.", + "title": "MODFLOW-2005, MODPATH, and MOC3D used for groundwater flow simulation, pathlines analysis, and solute transport in the crystalline-rock aquifer in the vicinity of the Savage Municipal Water-Supply Well Superfund Site, Milford, New Hampshire", "type": "dataset" }, { - "_score": 10.107474, + "_score": 10.220591, "_sort": [ - 1789862448592, - 10.107474, - 1, - "b6caff4c-d0f5-482b-af09-8ec58d7aadf0" + 1789865865096, + 10.220591, + 5, + "55601e8a-b8d0-401d-937c-f30f81edf947" ], "dcat": { "accessLevel": "public", @@ -275,11 +299,11 @@ "fn": "Ryan F. Thompson", "hasEmail": "mailto:rcthomps@usgs.gov" }, - "description": "This data set contains land surface elevations on dry and wadeable portions of transects for the \nhydrographic surveys on the Missouri River below Gavins Point Dam near River Mile 761.4. This \ndata provides land surface elevations of shallow-water, shore, and highbank for the Missouri River \nfollowing construction of Emergent Sandbar Habitat.", + "description": "This geospatial data set contains an interpolated 3-D surface or, triangulated-irregular network (TIN), of \nthe change in elevation, in feet, of the substrate between cross-sections 22 and 35 following construction \nof Emergent Sandbar Habitat near River Mile 770. The surface was generated from points collected by \nthe echosounder and real-time kinematic (RTK) GPS on cross-sections in the downstream project reach \nsurrounding the construction area at River Mile 770 below Gavins Point Dam on the Missouri River in \nSouth Dakota before and after construction of the sandbar.", "distribution": [ { "@type": "dcat:Distribution", - "accessURL": "https://doi.org/10.5066/P97LD4D7", + "accessURL": "https://doi.org/10.5066/P98YVECX", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", @@ -288,16 +312,16 @@ { "@type": "dcat:Distribution", "description": "The metadata original format", - "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.e92cc781-ee80-4609-8733-54072c302ca2.xml", + "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.bab471f5-254a-4619-a308-17af1ab39dd0.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata" } ], - "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e92cc781-ee80-4609-8733-54072c302ca2", + "identifier": "http://datainventory.doi.gov/id/dataset/USGS_bab471f5-254a-4619-a308-17af1ab39dd0", "keyword": [ "Hydrographic Survey", - "USGS:e92cc781-ee80-4609-8733-54072c302ca2", + "USGS:bab471f5-254a-4619-a308-17af1ab39dd0", "environment", "geoscientificInformation", "inlandWaters" @@ -307,30 +331,30 @@ "@type": "org:Organization", "name": "U.S. Geological Survey" }, - "spatial": "-96.800230, 42.654601, -96.700315, 42.673551", - "theme": [ - "geospatial" - ], - "title": "GPS data collected for postconstruction hydrographic surveys of Missouri River downstream from Gavins Point Dam near river mile 761.4" - }, - "description": "This data set contains land surface elevations on dry and wadeable portions of transects for the \nhydrographic surveys on the Missouri River below Gavins Point Dam near River Mile 761.4. This \ndata provides land surface elevations of shallow-water, shore, and highbank for the Missouri River \nfollowing construction of Emergent Sandbar Habitat.", + "spatial": "-96.876334, 42.712792, -96.851104, 42.732505", + "theme": [ + "geospatial" + ], + "title": "Difference betweem postconstruction and preconstruction land surface elevation tins on the Missouri River Downstream from Gavins Point Dam near River Mile 769.8." + }, + "description": "This geospatial data set contains an interpolated 3-D surface or, triangulated-irregular network (TIN), of \nthe change in elevation, in feet, of the substrate between cross-sections 22 and 35 following construction \nof Emergent Sandbar Habitat near River Mile 770. The surface was generated from points collected by \nthe echosounder and real-time kinematic (RTK) GPS on cross-sections in the downstream project reach \nsurrounding the construction area at River Mile 770 below Gavins Point Dam on the Missouri River in \nSouth Dakota before and after construction of the sandbar.", "distribution_titles": [ "Digital Data", "Original Metadata" ], - "harvest_record": "https://catalog.data.gov/harvest_record/06f7adc6-6426-4a97-a844-660019834cb8", - "harvest_record_raw": "https://catalog.data.gov/harvest_record/06f7adc6-6426-4a97-a844-660019834cb8/raw", + "harvest_record": "https://catalog.data.gov/harvest_record/556633c5-bdeb-412c-91ce-b313b2be3551", + "harvest_record_raw": "https://catalog.data.gov/harvest_record/556633c5-bdeb-412c-91ce-b313b2be3551/raw", "has_download": true, "has_spatial": true, - "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e92cc781-ee80-4609-8733-54072c302ca2", + "identifier": "http://datainventory.doi.gov/id/dataset/USGS_bab471f5-254a-4619-a308-17af1ab39dd0", "keyword": [ "Hydrographic Survey", - "USGS:e92cc781-ee80-4609-8733-54072c302ca2", + "USGS:bab471f5-254a-4619-a308-17af1ab39dd0", "environment", "geoscientificInformation", "inlandWaters" ], - "last_harvested_date": "2026-09-20T00:00:48.592300", + "last_harvested_date": "2026-09-20T00:57:45.096931", "organization": { "aliases": [ "dept" @@ -345,6 +369,1746 @@ "slug": "doi" }, "parent_identifier": null, + "popularity": 5, + "publisher": "U.S. Geological Survey", + "slug": "difference-betweem-postconstruction-and-preconstruction-land-surface-elevation-tins-on-the-4e0f6", + "spatial_centroid": { + "lat": 42.7206772, + "lon": -96.866242 + }, + "spatial_shape": { + "coordinates": [ + [ + [ + -96.876334, + 42.712792 + ], + [ + -96.876334, + 42.732505 + ], + [ + -96.851104, + 42.732505 + ], + [ + -96.851104, + 42.712792 + ], + [ + -96.876334, + 42.712792 + ] + ] + ], + "type": "Polygon" + }, + "theme": [ + "geospatial" + ], + "title": "Difference betweem postconstruction and preconstruction land surface elevation tins on the Missouri River Downstream from Gavins Point Dam near River Mile 769.8.", + "type": "dataset" + }, + { + "_score": 10.042114, + "_sort": [ + 1789865798110, + 10.042114, + 1, + "da73e18a-7c5e-401a-bdb1-0c3d66eb2ccc" + ], + "dcat": { + "accessLevel": "public", + "bureauCode": [ + "010:12" + ], + "contactPoint": { + "@type": "vcard:Contact", + "fn": "Ryan F. Thompson", + "hasEmail": "mailto:rcthomps@usgs.gov" + }, + "description": "This geospatial data set contains the points collected by the echosounder on transects in the upstream project \nreach surrounding the construction area at River Mile 770.0 below Gavins Point Dam on the Missouri River in \nSouth Dakota. 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Seven additional MODFLOW-2000 scenarios (numbered 7-13), using this updated and recalibrated model, were developed to evaluate different withdrawal strategies which are included in this data release: (7) Mount Pleasant Waterworks bringing online a new well (located at the old well 5 location) at 3.51 million gallons per day (Mgal/d) in 2025; (8) Maximizing withdrawals from Mount Pleasant Waterworks wells 2 and 5 (3.51 Mgal/d each) in 2020 and 2025, respectively; (9) Same as Scenario 7, but removing well 3 from production in 2025; (10) Same as Scenario 9, but removing well 4 from production in 2025 (11) Same as Scenario 7, but converting well 3 to an injection well in 2025 (12) Same as Scenario 11, but converting well 4 to an injection well in 2030; and (13) Same as scenario 8, but with two injection wells added (one in 2025 and one in 2035) to Mount Pleasant Waterworks well field. 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The dataset depicts the authoritative locations of the most commonly known Department of Defense (DoD) sites, installations, ranges, and training areas world-wide. These sites encompass land which is federally owned or otherwise managed. This dataset was created from source data provided by the four Military Service Component headquarters and was compiled by the Defense Installation Spatial Data Infrastructure (DISDI) Program within the Office of the Assistant Secretary of Defense for Energy, Installations, and Environment. Only sites reported in the BSR or released in a map supplementing the Foreign Investment Risk Review Modernization Act of 2018 (FIRRMA) Real Estate Regulation (31 CFR Part 802) were considered for inclusion. This list does not necessarily represent a comprehensive collection of all Department of Defense facilities. For inventory purposes, installations are comprised of sites, where a site is defined as a specific geographic location of federally owned or managed land and is assigned to military installation. DoD installations are commonly referred to as a base, camp, post, station, yard, center, homeport facility for any ship, or other activity under the jurisdiction, custody, control of the DoD.\n\nWhile every attempt has been made to provide the best available data quality, this data set is intended for use at mapping scales between 1:50,000 and 1:3,000,000. For this reason, boundaries in this data set may not perfectly align with DoD site boundaries depicted in other federal data sources. Maps produced at a scale of 1:50,000 or smaller which otherwise comply with National Map Accuracy Standards, will remain compliant when this data is incorporated. Boundary data is most suitable for larger scale maps; point locations are better suited for mapping scales between 1:250,000 and 1:3,000,000.\n\nIf a site is part of a Joint Base (effective/designated on 1 October, 2010) as established under the 2005 Base Realignment and Closure process, it is attributed with the name of the Joint Base. All sites comprising a Joint Base are also attributed to the responsible DoD Component, which is not necessarily the pre-2005 Component responsible for the site. 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This dataset is one of several layers in the BTS Intermodal Freight Facility Database. This layer includes air cargo facilities at the top 60 U.S. airports by tonnage in 2017, derived from BTS-aggregated airline traffic data by origin and destination data. To balance data utility, the methodology established a threshold capturing 92.3% of all domestic air freight while excluding lower-volume facilities. This geospatial layer only represents air-to-truck intermodal facilities that are permanent, physical structures where air cargo does not change form and is transloaded from an airplane to a truck and vice-a-versa on airport property only. It does not account for open-air tarmac, ramp, or apron areas utilized for staging, loading, or transferring freight, nor does it represent truck-to-truck warehouses off airport property. This layer is represented as a point layer, with facility locations being manually located in the center of a structure’s footprint. Users should be aware of additional decisions and assumptions made during the data collection process that impact the scope, quality, and completeness of the facilities ultimately included in the dataset. For instance, the methodology excluded United States Postal Service (USPS) mail facilities and included building square footage estimates that were based on manually-drawn polygons using Geographic Information System (GIS) software that estimated facility footprints. Attribute details such as primary facility operators were compiled using the best public information available at the time, in this instance sourced from Google Maps and Google Street View. Because air cargo environments evolve rapidly, users should be aware of the inherent complexities and dynamic nature of airport ground operations. Facilities may change primary operators, expand footprints, or shift operational leases, creating a fluid environment that makes attribute tracking challenging. This geospatial layer offers a representative inventory of intermodal facilities rather than a high-precision spatial survey. Per BTS guidance, center-point coordinates and estimated square footage serve as general spatial indicators and should not be relied upon to determine the exact boundaries or physical dimensions of individual cargo structures. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529031", - "distribution": [ - { - "@type": "dcat:Distribution", - "accessURL": "https://doi.org/10.21949/1522140", - "describedByType": "application/octet-stream", - "description": "Web page to view and download dataset. 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This dataset is one of several layers in the BTS Intermodal Freight Facility Database. This layer includes air cargo facilities at the top 60 U.S. airports by tonnage in 2017, derived from BTS-aggregated airline traffic data by origin and destination data. To balance data utility, the methodology established a threshold capturing 92.3% of all domestic air freight while excluding lower-volume facilities. This geospatial layer only represents air-to-truck intermodal facilities that are permanent, physical structures where air cargo does not change form and is transloaded from an airplane to a truck and vice-a-versa on airport property only. It does not account for open-air tarmac, ramp, or apron areas utilized for staging, loading, or transferring freight, nor does it represent truck-to-truck warehouses off airport property. This layer is represented as a point layer, with facility locations being manually located in the center of a structure’s footprint. Users should be aware of additional decisions and assumptions made during the data collection process that impact the scope, quality, and completeness of the facilities ultimately included in the dataset. For instance, the methodology excluded United States Postal Service (USPS) mail facilities and included building square footage estimates that were based on manually-drawn polygons using Geographic Information System (GIS) software that estimated facility footprints. Attribute details such as primary facility operators were compiled using the best public information available at the time, in this instance sourced from Google Maps and Google Street View. Because air cargo environments evolve rapidly, users should be aware of the inherent complexities and dynamic nature of airport ground operations. Facilities may change primary operators, expand footprints, or shift operational leases, creating a fluid environment that makes attribute tracking challenging. This geospatial layer offers a representative inventory of intermodal facilities rather than a high-precision spatial survey. Per BTS guidance, center-point coordinates and estimated square footage serve as general spatial indicators and should not be relied upon to determine the exact boundaries or physical dimensions of individual cargo structures. 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This model was originally developed in 2007, by Petkewich and Campbell \n(https://pubs.er.usgs.gov/publication/sir20075126), then updated and recalibrated to conditions \nfrom 1900 to 2015. Results of six previous scenario simulations (scenarios 1-6) for the Mount \nPleasant Water Works are published in a U.S. Geological Survey (USGS) Scientific Investigations \nReport (https://doi.org/10.3133/sir20175128). 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