Geophysical Archive Data Delivery System

Basic Instructions

Option 1:

Enter the extents in the Lat/Long Rectangle form as decimal degrees (e.g. 137.821) then click the "proceed to download" button beside it.

Note:
W Long = Western Boundary Longitude
E Long = Eastern Boundary Longitude
S Lat = Southern Boundary Latitude
N Lat = Northern Boundary Latitude

Option 2:

Use the map query tool () to define your area of interest. The Lat/Long rectangle form will be automatically populated with the extents of the area you define, then click the "proceed to download" button beside the form.

Option 3:

Use the "Quick Start" menu to choose an area of interest based on a 250k map sheet. Choosing a map sheet will populate the Lat/Long Rectangle form, then click on the "proceed to download" button beside it to find data in that area.

Click here for more detailed GADDS help.