• Data

    Where to go for Parcel data

    This is by far the most frequently asked question.   Currently, parcel data is managed by individual towns and cities. The frequency of updates and the currentness of those data does vary by municipality. The map below provides information on the status of digital parcels in the state.  In the map, click on a town polygon to obtain links to online GIS resources as well as the GIS point of contact.  Information on individual towns can also be obtained here. Answer: Parcel data do need to be obtained by contacting the specific town/city of interest.   This map was created by the Rhode Island Statewide Planning Program and will be updated on an…

  • Data,  Tips and Tricks

    Download Image Service Tiles

    Last post we looked at how to connect to the RIGIS image services within desktop GIS.  Did you know that you are able to download selected tiles from these image services within ArcMap and ArcPro?  Let’s step through how: SELECT TILES TO DOWNLOAD Add an image service layer to your map. Zoom in on an area. Use the select tool to define an area of tiles to download (draw a rectangle or select an area by just clicking) NOTE: the download operation is limited to 20 tiles at a time. Once the tiles are selected, you may need to remove the overview extents that are selected.  Follow the appropriate workflow:…

  • Data

    Connect to Image Services

    Ready to start using the new 3- inch pixel resolution, true color aerial images captured April 24 – May 7, 2019?  Try connecting to the RIGIS image server to begin using these resources in your map and online products.  While these images are not traditionally orthorectifed, they do provide incredible detail. ArcGIS Pro Add Data: Select Portal > All Portal This will allow a search of all ArcGIS Online public data including RIGIS data holdings. In the Search bar type, “RIGIS aerial 2019“ The results listed show a grouping of data for each flight time period.   Each flight time period includes 2 Imagery layers and one Tile layer. The Tile…

  • Data

    Initial Release: Statewide Aerials; Fall 2018, Winter 2018/19, and Spring 2019

    The Rhode Island Department of Transportation has contributed three new statewide aerial imagery collections to RIGIS! All imagery are 3-band, true color, with a spectacular 3-inch spatial resolution. They consist of: Fall 2018 Leaf-on Capture date range: October 14 – November 8, 2018 Winter 2018/19 Leaf-off Capture date range: November 24, 2018 – January 15, 2019 Spring 2019 Leaf-off Capture date range: April 24 – May 7, 2019 They are currently accessible via both ArcGIS image services and hosted ArcGIS Online tile layers via the URLs listed above. Traditional file download for these image collections is expected to be made available in Fall 2019, after a new web server is…

  • Data

    KML and RIGIS Vector Data

    Most of the vector GIS datasets (e.g. roads, land use, benchmarks, etc.) distributed by RIGIS are accessible via KML. KML is widely supported by mapping software and apps such as Google Earth and Esri ArcGIS Earth. These KML linkages are readily available from most of the RIGIS vector dataset description pages. Head over to the RIGIS data clearinghouse: http://www.rigis.org Try browsing through the different data categories, or try the search bar to find the dataset you’re interested in. In this example, we’ve searched for the keyword “911” to find the RI E911 road centerline dataset. Look for the “Download” menu on the right-hand side of the page. If you click…

  • Data

    KMZ and RIGIS Aerial Photos

    RIGIS supports the use of KMZ files to access many of its aerial photograph collections! The KMZ file format is widely supported by mapping software and apps including Google Earth and Esri ArcGIS Earth. We’ve recently updated our website to make these KMZ linkages easier to find. NOTE: Note all RIGIS image collections are currently available as KMZ. Get started by heading over to the RIGIS data clearinghouse: http://www.rigis.org Scroll down on the homepage until you find button for the RIGIS Imagery Collections.         Select the aerial photo collection you’re interested in viewing, such as these from Spring 2011.   Finally, choose the KMZ option from the list…

  • Data

    Spring 2018 Aerial Photos: Initial Release

    Spring 2018 aerial photographs are now available from RIGIS as ArcGIS image services and an ArcGIS Online hosted tile layer! Here’s a quick rundown: Statewide True color 3-inch pixel size Not orthorectified Collected and processed by EagleView under contract to the Rhode Island Department of Transportation (RIDOT) Contributed to RIGIS by RIDOT, in partnership with the Rhode Island Department of Environmental Management, Rhode Island Enhanced 9-1-1 Uniform Emergency Telephone System, and Rhode Island Emergency Management Agency Esri ArcGIS Server Image Services (a.k.a. “Imagery Layers” according to ArcGIS Online) directly hosted by the URI Environmental Data Center are available in two different coordinate systems. Web Mercator WGS 84 Meters:https://edc.maps.arcgis.com/home/item.html?id=7368516070e24d4d9676d3932eaa3b73 Rhode Island State Plane…

  • Data

    The RI E911 Exposure Assessment

    The Rhode Island Shoreline Change Special Area Management Plan (RI Beach SAMP), a program supported by many partners accross the state, works to study and understand how RI’s coastal communities will be affected by flooding and erosion in the coming years, and to assist municipalities in planning how to protect both people and property from these changes. One of the goals of the Beach SAMP program is to generate new data that can be used by communities and individuals to plan for the future. One of their many projects is the RI e911 Exposure Assessment, which utilizes the E911 sites data published here on RIGIS. Background on the E911 Data: The e911 sites data (as well…

  • Data

    Gridded Soil Survey Geographic (gSSURGO) Database

    The Gridded SSURGO (gSSURGO) is a complimentary product to the traditional SSURGO data made available the USDA-NRCS. All attribute tables associated with traditional SSURGO data are contained with the gSSURGO database. These data are stored in an Esri File Geodatabase and are easily combined with other national raster datasets such as the National Land Cover Database (NLCD) or the National Elevation Dataset (NED), to name a few. Because file geodatabases offer the capacity to store much more data, the gSSURGO covers wider spatial extents than traditional SSURGO data, giving the NRCS the ability to make these data available as statewide, or even Conterminous United States (CONUS) tiles. The USDA-NRCS has…