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The National Map

Last Update: May 2013

What's New - May 2013

Base Maps

The National Map Viewer Base Map Button Bar (shown below) has been updated to include the new Imagery Topo Base Map.

Base Map Toggle Buttons

What's New?

USGS Imagery Topo Base Map

The new USGS ImageryTopo base map service was added in May 2013. USGS Imagery Topo Basemap It combines imagery from the ImageryOnly base map with contours and various vector features to produce a cartographically rich base map for scales down to 1:18k. This base map applies new cartographic styling based on the US Topo product at 1:18k scale adjusted for smaller scales.

This new base map is available by selecting the Imagery Topo base map button from within the TNM Viewer.

Users who would like to use the base map in other applications may reference this map service URL:

http://basemap.nationalmap.gov/ArcGIS/rest/services/USGSImageryTopo/MapServer

See: Base Maps for more information.

Download API

Staged Products

New Staged Products are now sorted to the top of the product lists to encourage their use over dynamic downloads. These staged products represent the quickest way to obtain data for download and help the USGS to keep dynamic services, and costs associated with these, at a minimum.

Toolbar Access

Download options have all been moved to the standard toolbar to make these tools accessible while still having access to the basic navigation tool choices. These had been previously added to the Advanced toolbar which hid the basic navigation tools.

Improvements

Numerous enhancements to the underlying framework have occurred which should make for a smoother user experience overall.

Overlays

Natural Hazards overlay panel

Natural Hazards

The Natural Hazards overlay panel was added to group USGS hazards map content together with NEXRAD weather making it more convenient to explore this information. Before this change these overlays were included under the Other Featured Data panel.

USGS Gap Land Cover

USGS Gap Land Cover overlay was updated with a new service and can be found under Other Featured Data panel.

NGA US National Grid

A new overlay has been added to display the US National Grid. The overlay service comes from NGA and can be found under the Other Featured Data panel.

US Topo Availability

The 'US Topo' overlay has been renamed to 'US Topo Availability' in order to clarify this is a status layer indicating availability of the product.

Tools

export NED Spot Elevation screenshot.

Spot Elevation CSV Export

Spot Elevation Export to CSV Text - The Annotation Toolbar now includes a option export NED Spot Elevation icon to export the current NED-based spot elevations to a CSV text format in the form: Latitude,Longitude,Elevation.

What's New Feb 2013

Base Maps

The National Map Viewer allows selection of various base maps through the button bar shown below.

Base Map Toggle Buttons

What's New?

USGS Topo Base Map

The new USGS Topo base map service was added in November 2012. USGS Topo Basemap It combines shaded relief and contours with various vector features to produce a cartographically rich base map for scales down to 1:18k. This represents the first in a series of composite base maps scheduled to be released in 2013 which offer performance improvements with simplicity of use within other applications.

This new base map is available by selecting the Topo base map button from within the TNM Viewer.

Users who would like to use the base map in other applications may reference this map service URL:

http://basemap.nationalmap.gov/ArcGIS/rest/services/USGSTopo/MapServer

USGS ImageryOnly Base Map

USGS Topo Basemap

The new USGS Imagery Only base map service was added in January 2013. It highlights NAIP imagery in a tile cached service suitable for overlaying individual data layers over the top.

Content includes:

The URL for this map service is:

http://basemap.nationalmap.gov/ArcGIS/rest/services/USGSImageryOnly/MapServer

See: Base Maps for more information.

Search

TNM Viewer Search

What's Changed?

The search behavior has been modified to return more accurate results. This feature should be more useful now for locating a particular Place of Interest (POI).

If only one result is found the map view will automatically zoom to this result.

If more than one result was found, the list of these items will be provided in the Selection panel to the left of the map with a Zoom To link to update the map view. If multiple results are within the current map view, the map view will be adjusted to better contain the results.

Additional enhancements are planned for future releases to incorporate other search options and results.

See: Searching for more information.

Download API

What's New?

What's Changed?

See: Download for more information.

Help Documentation

What's New?

What's Changed?

Behind the scenes, the content for the FAQs have been migrated from a custom FAQ implementation specific to The National Map to the broader USGS-wide FAQ shared implementation.

Save As - Open In

The Print function in the previous release made available the following output options: PDF, JPG, PNG.

What's New

The print/save options have been expanded to include the following experimental output formats:

Users are likely familiar with the KML format used by Google Earth. This implementation has some limitations currently but is provided as a valid option for exporting map contents.

The Palanterra X3 JSON is the format used to configure each instance of the Viewer. This option is available for users wanting to provide an instance of the viewer customized for their own interests.

The Geoservices JSON is a format used by ESRI implementations and is provided for experimentation with compatibility at this level.

NOTE: These new output formats are experimental and provided as-is. We are releasing to allow users to test and comment. Further improvements and examples will be forthcoming.

User Notifications

In an effort to better inform our users of changes and issues, we are making use of Twitter and Google Groups to send out important notifications.

Google Analytics and Customer Satisfaction Tools

In accordance with the President's Digital Government Strategy, the USGS, along with all other Federal agencies, must implement global performance and customer satisfaction metrics on all .gov websites by January 22, 2013.

The tools being employed are: GSA and USGS Google Analytics code, and a USGS Foresee Customer Satisfaction survey.

TNM Viewer was an early implementation tester for these tools and these tools have been active in the TNM Viewer since December.

Accessibility FOIA Privacy Policies and Notices

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