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WatershedHealth_Sediment_SOS2020
Average percent of "pebble count" stations that are of sand or smaller size. Data are from Watershed Health Monitoring surveys conducted by the Department of Ecology during 2009-2019. Data from Recovery Regions are intended for the 2020 State of the Salmon Report. Reference the metric "PCT_SandFines" in the Watershed Health database. The reference category is based on Table 2 of Bryce et al (2010) J. N. Am. Benthol. Soc., 2010, 29(2):657–672 plus 5.5% for adjustment to bankfull channel rather than wetted.
Columns
| Name | Socrata field name | Column name in sgr mount | Data type | Description |
|---|---|---|---|---|
| Sand_and_Silt_Category | sand_and_silt_category | sand_and_silt_category | Text | Is the Sand_and_Silt above the estimated optimum for invertebrates in a channel measured bank to bank. |
| Sand_and_Silt_pct | sand_and_silt_pct | sand_and_silt_pct | Number | Average (for samples 1 and 2) PCT_SandFines (%) |
| Sample2 | sample2 | sample2 | Text | Data collection event for the duplicate |
| Sample1 | sample1 | sample1 | Text | Data collection event for the first sample in the survey |
| ReferenceRegion | referenceregion | referenceregion | Text | Membership among Department of Ecology's 3 reference regions |
| RecoveryRegion | recoveryregion | recoveryregion | Text | Salmonid Recovery Region membership |
| SurveyWeight_km | surveyweight_km | surveyweight_km | Number | Stream length (km) represented by the site for the given survey |
| SurveyRegion | surveyregion | surveyregion | Text | Status & Trends Region membership |
| SURVEY_YEAR | survey_year | survey_year | Text | Survey Round and year of sampling |
| NHDpSTRAHLER | nhdpstrahler | nhdpstrahler | Number | Strahler stream order by comparison with 1:100,000 NHDplus |
| SITE_ID | site_id | site_id | Text | Unique site identifier from the Washington Master Sample |
| Ecoregion | ecoregion | ecoregion | Text | Membership among EPA Level 3 Ecoregions |
Upstream Metadata