Circumarctic resource appraisal gis data downloads provides assessment unit and provincelevel details from the 2008 assessment in 33 geologic provinces north of the arctic circle. Browse all massgis data layers massachusetts document. Massgis data lidar terrain data contains the latest datasets of light detection and ranging lidar. As a requirement for the orthorectification process of the 1.
Search boundaries within massgis oliver to retrieve municipal and urban. Energy resources program, central energy resources science center. Digital elevation model and shaded relief 2005 digital elevation model 1. Using this list, you have instantly become more knowledgeable with these 10 free gis data sources. This line datalayer represents elevation contours at 3meter intervals created from. For many years, cad data and geographic information system gis data have lived in different worlds. Massgis provides a wide variety of gis data layers that you can use in your own software and web map applications.
On each page you will find metadata and links to free data download. The elevation data was delivered to massgis in the form of text files with a pair. Download the shapefiles open geojson data on github. Massgis is the states onestopshop for interactive maps and associated descriptive information. Download elevations above and below sea level use either eto. Lidar terrain data digital elevation model and shaded relief 2005 digital elevation. The usgs shaded relief base map service from the national map was created with data from the 3d elevation program 3dep for large and medium scales 1. The data access viewer dav allows a user to search for and download elevation, imagery, and land cover data for the coastal u. Even better, all this data is becoming more accessible to the public, and its free in many cases. The shape of the bare earth terrain is represented by. Gis real estate suitability radon gas maps lidarbased elevation data from the usgs national map approximately 3meter resolution can be applied at the individual property scale to better understand topography of a lot. The national hydrography datasets, watershed boundary dataset, governmental boundary units, transportation, structures, elevation contours and geographic. Any downloading and use of these data signifies a users agreement to. Light detection and ranging lidar terrain and elevation data cover the entirety of massachusetts.
Digital elevation data are available through the national map download client. Staged productsthe topographic maps and geographical information system gis data provided in the national map are pregenerated into downloadable products often available in multiple formats. As private and public organizations across the globe are working hard to geospatially locate everything on the planet, these two worlds are quickly merging. This item is included in the sde version and in shapefiles distributed by massgis. It was created from the digital terrain models that were produced as part of the 1. Thats why we put together this list of 10 global gis data sets that you can download for free. Gis users can access data and web services for their software and applications. This raster layer represents surface elevation for massachusetts.
The following table summarizes data for the projects and contains links to download full projectspecific metadata. What types of elevation datasets are available, what formats. If you havent found what youre looking for, here are. The map was designed by massgis staff in esris arcmap 10. See the data overview for attribution, citation language and spatial reference information. Detailed descriptions are available along with data download links for a variety of different gis file formats including esri shapefile and file geodatabase. Massachusetts water features, including lakes, ponds, rivers, streams and wetlands. To download virtually any of our datasets, click browse all massgis data below to visit the metadata pages for individual data layers and take advantage of the data download links on those pages. The data, hosted by the noaa office for coastal management, can be customized and requested for free download through a checkout interface. How gis data can be imported into autocad civil 3d. You can view and explore our extensive library of map information using our online mapping viewer, oliver and other web maps. Massgis also coordinates gis activities in state and local government and sets gis data. These data represent the bare earth elevation of the terrain surface without vegetation and artificial features. An email provides a link to the customized data, while the original data set is available through a link.
A single basemap cache combines a topographic base, detailed features and 2d building structures. Map consist of standard digital elevation models dems at various horizontal. For more details, especially at the feature level, see the contact information in the maintenance section of each page. Coded y for all multiples of 15, to facilitate display of index arcs for labelling. Usgs hill shade base map service from the national map. The date below the data layer name on each page represents the month and year of the most recent update.
To select these index arcs in the data available for download use the query. Each cell has a value, in meters, which represents its elevation above or below sea level and range from 1064. Elevation points compiled from 1994 aerial photography. These data can be used for emergency response, drainage studies and hydrologic floodplain modeling, development suitability analysis and infrastructure planning, identification of structures and other manmade features.
228 1150 235 552 888 516 436 853 974 1045 1650 466 1211 1677 1390 218 1352 748 803 195 705 493 1392 940 82 1302 1475 885 619 571 1037 1592 1647 756 1078 99 1369 69 1087 1208 619 811 870 922 1462 1099