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DSM2 Input 2026-06-29 historical update

Version "DSM2 Input 2026-06-29 historical update" is based on version "DSM2 Input 2026-04-16 historical update" (which incorporates the changes from the Monitoring Special Study version of DSM2), and includes the following changes: Some cross-sections in Middle River are notched by adding a narrow "V" shape to the bottom. This is done to help prevent drying up. In the previous version, notching was done to a bottom elevation of approximately -10 feet NAVD88. This release modifies the notching to a bottom elevation of approximately 0 ft NAVD88. The output location file output_stage_calib_mss.inp was modified to include output locations for stations CIS and MHR.

Data files

Data title and descriptionAccess dataFile detailsLast updated

DSM2 Input 2026-06-29 historical update

Version "DSM2 Input 2026-06-29 historical update" is based on version "DSM2 Input 2026-04-16 historical update" (which incorporates the changes from the Monitoring Special Study version of DSM2), and includes the following changes: Some cross-sections in Middle River are notched by adding a narrow "V" shape to the bottom. This is done to help prevent drying up. In the previous version, notching was done to a bottom elevation of approximately -10 feet NAVD88. This release modifies the notching to a bottom elevation of approximately 0 ft NAVD88. The output location file output_stage_calib_mss.inp was modified to include output locations for stations CIS and MHR.

DownloadZIP
07/01/26

Supporting files

Data title and descriptionAccess dataFile detailsLast updated

DSM2 Grid 2026-04-16 historical shapefiles

Based on version "DSM2 Grid 2025-09-03 historical". The location of the Middle River Barrier has been corrected by adding channel 901 to replace a portion of channel 134. The Middle River barrier has been placed on the upstream side of the node for consistency with the configurations of other barriers.

HTML
07/01/26

DSM2 v8.5.0

HTML
07/01/26

DEM for Modeling, Version 4.3

HTML
07/01/26

CSDP Bathymetry Files version 2025-05-28

HTML
07/01/26

API endpoint

Dataset Name

Use the query web API to retrieve data with a set of basic parameters. Copy the API endpoint you need to start.

Usage documentation