Soil Organic Carbon and Wetland Potential Estimates for Hoh River Watershed

2012-2013 estimates of soil organic carbon stocks and wetland intrinsic potential across the Hoh River Watershed in Washington's Olympic Peninsula. The dataset includes high-resolution (4-m) raster layers of SOC at 1m and 30cm depths, SOC standard deviations, and WIP, plus 36 field observation records collected from 2020 to 2022. Data was produced by NASA using a random forest model and published equations.

Use Cases

• Validating remote sensing soil carbon models using the 36 field observation SOC measurements.
• Mapping wetland likelihood for conservation planning using the Wetland Intrinsic Potential (WIP) raster layer.
• Analyzing spatial distribution of soil carbon stocks at two depths (1m and 30cm) for climate research.
• Assessing uncertainty in SOC estimates by examining the provided standard deviation raster layers.
• Conducting watershed-scale ecological studies combining geology, vegetation, hydrology, and soil data.

Strengths

• Includes 36 ground-truth field observations of SOC collected from 2020-08 01 to 2022-06-29 for model validation.
• Provides high-resolution (4-meter) Cloud-Optimized GeoTIFFs for SOC estimates and wetland potential.
• Model-derived estimates are based on peer-reviewed methods (Stewart et al., 2023; Halabisky et al., 2022).
• Dataset is hosted by NASA and appears on multiple platforms, indicating recognized importance.

Limitations

• Primary raster data covers 2012-2013, while field observations are from 2020-2022, creating a temporal mismatch for direct validation.
• Conflicting 'last updated' dates exist between platforms (2026-03-12 on datagov vs. 2022-06-29 on nasa_earthdata).
• Specific column names for the CSV file containing field observations are not provided in any source description.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Estimates derived from an equation based on wetland intrinsic potential and geology type; WIP modeled using a random forest built on vegetation, hydrology, and soil data. Field observations collected separately.

Time Range

2012-2013 to 2022-06-29

Freshness

2026-03-12 21:22:20.808638

Geography

Hoh River Watershed, Olympic Peninsula, Washington, USA