Historically, access to the Homeland Infrastructure Foundation-Level Data (HIFLD) has been restricted to applicants meeting a variety of criteria, such as working for a federal government agency, or state emergency management agency. With the release of their new ArcGIS Online Open Data website, the HIFLD has made data previously contained within the Homeland Security Infrastructure Program (HSIP) databases available, and open, to the public.
Northeast Ocean Data (NEOD) is a decision support tool and information resource for ocean data users from the Gulf of Maine to Long Island Sound. Maintained by a diverse Working Group, NEOD is comprised of data, tools and information from a variety of organizations, such as Applied Science Associates, The Nature Conservancy, NOAA Office for Coastal Management and SeaPlan, to name a few.
The USDA Geospatial Data Gateway is a great source for natural resources-related data and can be used to download pre-processed collarless topographic maps in MrSid format. This blog posting provides an alternative method for acquiring collarless topographic maps and helps to eliminate processing as stated in related blog postings.
This short blog will quickly walk you through downloaded the newest topographic maps for an areas of your choosing from the National Map Viewer. This free download platform provides users with access to free topographic data for the entire country.
This new viewer from the USGS provides GIS and non-GIS users with important coastal change information for the entire United States. Here, users can search, view, share, save and downloaded a multitude of coastal change data.
Learn how to quickly access and download post-Sandy imagery data for free.
Finding and accessing high quality elevation data can be a challenging process; this blog post will introduce a great way to access these data for free.