Wallkill River Watershed 3D

Explore watershed conditions, reports, monitoring sites, and screening-level scenarios.

Drag to move, scroll or pinch to zoom, and select map symbols for details.

Map layers

HAB reports

Visible HABs
0
Year range
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Camera

Advanced map display
Auto selects a mode for this device.

Current conditions

Risk class
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Rain, prior 3 days
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USGS flow
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Data freshness
Waiting…
Loading current conditions…

HAB Forecast

Screening-level, semi-mechanistic risk estimates for Wallkill River reaches. They are not bloom predictions, health advisories, or calibrated probabilities.
Forecast reaches
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Highest risk estimate
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Recent rain
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Open-Meteo, prior 3 days
Mean confidence
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Data completeness, not accuracy
Why this risk?
Waiting for HAB, flow, weather, soil-derived runoff susceptibility, and SPDES proxy inputs.
Initializing Wallkill HAB risk estimates…
Advanced USGS observations
Current discharge
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Awaiting USGS data
Current gauge height
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Awaiting USGS data

Scenario point

Select any map point (inside or outside the Wallkill watershed), then run the DEM, soil, elevation, and nutrient analysis.

No point selected
Select a map point to begin.

Storm scenario

USGS Gardiner Simulation
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Live discharge and gauge height adjusted by the current storm sliders.
Simulated discharge
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Storm-adjusted cfs estimate
Simulated gauge height
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Storm-adjusted stage estimate
Advanced nutrient, DEM, and SPDES results

Modeled SSURGO/SoilGrids runoff susceptibility + DEM flow delineation + NY SPDES design-flow proxies. These are not soil samples, measured watershed loads, or discharge-monitoring results.

Soil (SSURGO / SoilGrids)
Not analyzed
DEM contributing area
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DEM elevation
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Wallkill watershed (reference)
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Runoff C
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Annual N proxy
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Annual P proxy
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Dissolved P proxy (yr)
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Event N proxy
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Event P proxy
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SPDES facilities (subbasin)
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SPDES load proxy
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Data source status

Loading core map…
Legend
Watershed outline
Monitoring stations
River access sites
Confirmed HAB
High-toxin HAB
Suspicious HAB
Low risk estimate
Watch risk estimate
Elevated risk estimate
High risk estimate
SPDES surface discharge
SPDES groundwater discharge
SPDES discharge points
DEM flow path
Analyzed subbasin (DEM)
Pour point
Advanced method and provenance
Screening-level, semi-mechanistic HAB risk estimates are not bloom predictions, health advisories, or calibrated probabilities.

SPDES loads use design-flow and concentration proxies. Soil inputs describe modeled runoff susceptibility, not soil samples. DEM results are tile-scale screening delineations and are not surveyed drainage boundaries.

Model and source provenance load with the application.
Wallkill River Watershed interactive 3D scene.

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