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Pacific Coastal and Marine Science Center

The National Archive of Marine Seismic Surveys
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Data Download Status

Thank you for your interest in NAMSS. We're currently performing some important system updates, which means not all data downloads are available at this time. Data downloads are available for surveys released in 1970, 1975, 1982, 1987, and from 1996 to the present. As we continue our system updates, additional years of data downloads will be added. If you have any urgent questions or data needs, please contact the NAMSS team at namss@usgs.gov. We apologize for the inconvenience and appreciate your patience as we work to improve our systems.
  • Surveys
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Single click on the map to select nearby surveys and list them in this tab.

Identifier Filter

This filter uses the name, aliases, activity name, and activity aliases of each survey to match the keywords. All matches are case-insensitive. Available search operators are listed below.

Operator

How to use it

OR

Find surveys that match one of several keywords.

Example: F-2-86-BS OR L87-056 OR G3D1106-001

Note: This filter is AND'ed together with the other filters in the form.

Recently Added Filter

This filter uses the published date of each survey to check if it falls within the range of the selected time scale.

Note: This filter is AND'ed together with the other filters in the form.

Year of Acquisition Filter

This filter uses the start date and end date of each survey to match the keywords. All matches are case-insensitive. Available search operators are listed below.

Operator

How to use it

OR

Find surveys that match one of several keywords.

Example: 1980 OR 1983

..

Find surveys that match a keyword range. Keywords are seperated by two periods without spaces.

Example: 1980..1983

Note: This filter is AND'ed together with the other filters in the form.

Data Type Filter

This filter uses the data type of each survey to match the keywords. All matches are case-insensitive. Available search operators are listed below.

Operator

How to use it

OR

Find surveys that match one of several keywords.

Example: 3D Multichannel Seismic OR Singlechannel Seismic

Note: This filter is AND'ed together with the other filters in the form.

Contributor Filter

This filter uses the contributor and contributor aliases of each survey to match the keywords. All matches are case-insensitive. Available search operators are listed below.

Operator

How to use it

OR

Find surveys that match one of several keywords.

Example: Bureau of Ocean Energy Management OR USGS

Note: This filter is AND'ed together with the other filters in the form.

Data Acquisition System Filter

This filter uses the data acquisition system and data acquisition system aliases of each survey to match the keywords. All matches are case-insensitive. Available search operators are listed below.

Operator

How to use it

OR

Find surveys that match one of several keywords.

Example: Airgun OR Sparker

Note: This filter is AND'ed together with the other filters in the form.

Vessel Filter

This filter uses the vessel and vessel aliases of each survey to match the keywords. All matches are case-insensitive. Available search operators are listed below.

Operator

How to use it

OR

Find surveys that match one of several keywords.

Example: MV Farnella OR Midnight Worker

Note: This filter is AND'ed together with the other filters in the form.

Planning Area Filter

This filter uses the name of the planning area to match the keywords. All matches are case-insensitive. Available search operators are listed below.

Operator

How to use it

OR

Find surveys that match one of several keywords.

Example: Northern California OR Bowers Basin

The filter then uses the geometry of each survey and planning area to determine if they intersect.

Note: This filter is AND'ed together with the other filters in the form.

Protraction Area Filter

This filter uses the name of the protraction area to match the keywords. All matches are case-insensitive. Available search operators are listed below.

Operator

How to use it

OR

Find surveys that match one of several keywords.

Example: Green Canyon OR Hudson Canyon

The filter then uses the geometry of each survey and protraction area to determine if they intersect.

Note: This filter is AND'ed together with the other filters in the form.

Trackline Name Filter

This filter uses the name of each trackline to match the keywords. All matches are case-insensitive. Available search operators are listed below.

Operator

How to use it

OR

Find surveys that match one of several keywords.

Example: F286-22 OR F287-37

This filter only displays the matched tracklines instead of all the tracklines that belong to a survey.

Note: This filter is AND'ed together with the other filters in the form.

Note using Internet Explorer: with some versions of Internet Explorer, you may need to turn off "Combatibility Mode" to view the map on the right. In the "Tools" menu bar, select "Compatibility View Settings" to adjust the settings.

Select Surveys

1. Single click on the map to select surveys (displayed in magenta) that are nearby and list them in the "Surveys" tab. The nearby search area will be shown on the map by a blue circle.

2. In the "Surveys" tab, mouseover survey name in list to highlight survey on map (displayed in orange).

3. Click on survey name in list to view more survey details and highlight on map (displayed in yellow).

4. Click on "Open survey page in new tab" link for data and all other information.

Filter Surveys

1. Select the "Filters" tab.

2. Enter keywords into the form.

3. Click the "Filter" button to update the map.

4. Click the "Clear" button to clear the form and show all surveys.

Map Controls

To zoom, click the +/- buttons in the upper left corner of the map, use the mouse scroll wheel, or press and hold the shift key and click and drag the mouse.

To pan, click map and drag.

AccessibilityFOIAPrivacyPolicies and Notices

USA.gov logoU.S. Department of the Interior | U.S. Geological Survey | DOI Inspector General
URL: https://walrus.wr.usgs.gov/namss/search/
Page Contact Information: NAMSS Team
Page Last Modified: 12 December 2024 (pjt)