|
Member |
Description |
|
AB_21_NAD27 |
Grid version 2.1 on NAD27 |
|
AB_22_NAD27 |
Grid version 2.2 on NAD27 |
|
AB_23_NAD27 |
Grid version 2.3 on NAD27 |
|
AB_24_NAD27 |
Grid version 2.4 on NAD27 |
|
AB_25_NAD27 |
Grid version 2.5 on NAD27 |
|
AB_26_NAD27 |
Grid version 2.6 on NAD27 |
|
AB_31_NAD27 |
Grid version 3.1 on NAD27 |
|
AB_32_NAD27 |
Grid version 3.2 on NAD27 |
|
AB_32_NAD83 |
Grid version 3.2 on NAD83 |
|
AB_41_NAD83 |
Grid version 4.1 on NAD83 |
|
SK_2013_CSRS98 |
|
|
MB_2013_NAD83 |
|
The DLSDataVersion enumeration indicates the version of the Grid dataset and the horizontal datum that is being used for the current DLS system. There are several ATS grid versions, each successive version acting as a refinement for the previous version. The most recent versions (3.2 and 4.1) are based on the North American Datum of 1983.