WRMP logo SF Estuary Wetlands Regional Monitoring Program
Aerial view of a tidal marsh
Monitoring Results

Metrics

Metrics are how the WRMP measures different indicators of wetland function in the Estuary.

Browse the program's metrics, or filter by monitoring topic. Open a metric for the full figure, its data sources, and the tools behind it.

Bar chart: change in Bay-wide tidal wetland extent, 1998–2020
Baylands Geography

Tidal Wetland Extent

Existing, restored, and evolving tidal wetland acreage across the Bay in 1998, 2009, and 2020, tracked against the 100,000-acre regional goal.

Last updated Aug 12, 2025 Download figure: PNG · PDF
Data 1

Baylands Habitat Map 2020

GIS DATA

Habitat type and extent across the San Francisco Bay baylands, mapped for the WRMP.
Tools 1

EcoAtlas

WEB TOOL

Explore wetland habitat and restoration projects on the live regional map.
Science 1

How the extent change was measured

METHODS

Mapping approach and habitat definitions behind the 1998–2020 comparison.
Chart: cumulative restored tidal wetland acreage by year of initial restoration
Baylands Geography

Accurate tracking of wetland restoration progress

Cumulative acreage of restored and evolving tidal wetland by year of initial restoration — a new method for tracking progress toward regional restoration goals.

Last updated Aug 12, 2025 Download figure: PNG · PDF
Data 1

Restoration project tracker

DATA CATALOG

Every Bay tidal restoration project with breach date, acreage, and site state.
Tools 1

EcoAtlas

WEB TOOL

Browse the restoration projects behind this curve on the regional map.
Science 0

Nothing linked yet
Scatter plot: CRAM index scores of restoration sites against wetland age, with habitat development curve
Wetland ConditionVegetation

Measuring wetland condition with the CRAM Estuarine Habitat Development Curve

CRAM index scores of restoration sites plotted against wetland age show the condition a restoring marsh can be expected to reach over time.

Last updated Aug 12, 2025 Download figure: PNG · PDF
Data 1

CRAM assessment scores

WEB DATA

Site-level condition scores for estuarine wetlands across California.
Tools 0

Nothing linked yet

Science 1

Habitat Development Curve method

METHODS

How reference-site CRAM scores define the expected trajectory for restoring marshes.
Bar chart: rates of surface elevation change at Petaluma marsh stations against sea-level rise
Wetlands and Sea Level Rise

Surface Elevation Tables – Marker Horizons

Rates of marsh surface elevation change measured at Petaluma stations, compared against the local rate of sea-level rise.

Last updated Aug 12, 2025 Download figure: PNG · PDF
Data 1

SET-MH measurements

CSV

Elevation change and accretion readings from the program's SET stations.
Tools 0

Nothing linked yet

Science 1

SET-MH monitoring protocol

PDF

How surface elevation tables and marker horizons measure whether marshes keep pace.