Official Series Description


Lab Data Summary

Aggregate lab data for the ROCK CREEK soil series. This aggregation is based on all pedons with a current taxon name of ROCK CREEK, and applied along 1-cm thick depth slices. Solid lines are the slice-wise median, bounded on either side by the interval defined by the slice-wise 5th and 95th percentiles. The median is the value that splits the data in half. Five percent of the data are less than the 5th percentile, and five percent of the data are greater than the 95th percentile. Values along the right hand side y-axis describe the proportion of pedon data that contribute to aggregate values at this depth. For example, a value of "90%" at 25cm means that 90% of the pedons correlated to ROCK CREEK were used in the calculation. Source: KSSL snapshot . Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

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Pedons used in the lab summary:

MLRALab IDPedon IDTaxonnameCINSSL / NASIS ReportsLink To SoilWeb GMap
4491P086491MT089019Rock Creek6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties47.9805565,-115.7399979

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the ROCK CREEK soil series. Monthly precipitation (PPT) and potential evapotranspiration (PET) have been estimated from the 50th percentile of gridded values (PRISM 1981-2010) overlapping with the extent of SSURGO map units containing each series as a major component. Monthly PET values were estimated using the method of Thornthwaite (1948). These (and other) climatic parameters are calculated with each SSURGO refresh and provided by the fetchOSD function of the soilDB package. Representative water storage values (“AWC” in the figures) were derived from SSURGO by taking the 50th percentile of profile-total water storage (sum[awc_r * horizon thickness]) for each soil series. Note that this representation of “water storage” is based on the average ability of most plants to extract soil water between 15 bar (“permanent wilting point”) and 1/3 bar (“field capacity”) matric potential. Soil moisture state can be roughly interpreted as “dry” when storage is depleted, “moist” when storage is between 0mm and AWC, and “wet” when there is a surplus. Clearly there are a lot of assumptions baked into this kind of monthly water balance. This is still a work in progress.

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Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the ROCK CREEK series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot , parsed OSD records and snapshot of SC database .

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Select annual climate data summaries for the ROCK CREEK series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data .

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Geomorphic description summaries for the ROCK CREEK series and siblings. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. Proportions can be interpreted as an aggregate representation of geomorphic membership. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Small Shannon entropy values suggest relatively consistent geomorphic association, while larger values suggest lack thereof. Source: SSURGO component records .

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Click the image to view it full size.

There are insufficient data to create the 3D mountains figure.

There are insufficient data to create the 3D terrace figure.

There are insufficient data to create the 3D flats position figure.

Competing Series

Soil series competing with ROCK CREEK share the same family level classification in Soil Taxonomy. Source: parsed OSD records and snapshot of the SC database .

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Select annual climate data summaries for the ROCK CREEK series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data .

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the ROCK CREEK series and competing. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Proportions can be interpreted as an aggregate representation of geomorphic membership. Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Shannon entropy values close to 0 represent soil series with relatively consistent geomorphic association, while values close to 1 suggest lack thereof. Source: SSURGO component records .

There are insufficient data to create the 2D hillslope position figure.

There are insufficient data to create the 3D hills figure.

There are insufficient data to create the 3D mountains figure.

There are insufficient data to create the 3D terrace figure.

There are insufficient data to create the 3D flats position figure.

Soil series sharing subgroup-level classification with ROCK CREEK, arranged according to family differentiae. Hovering over a series name will print full classification and a small sketch from the OSD. Source: snapshot of SC database .

Block Diagrams

No block diagrams are available.

Map Units

Map units containing ROCK CREEK as a major component. Limited to 250 records.

Map Unit Name Symbol Map Unit Area (ac) Map Unit Key National Map Unit Symbol Soil Survey Area Publication Date Map Scale
Rock Creek very stony silt loam, 0 to 30 percent slopes98017315880111q9g5wa63720081:24000
Rock Creek stony silt loam, 0 to 30 percent slopes489163766162kqhwa63920031:24000
Rock Creek complex, 0 to 12 percent slopes, very stony2214820861292wmcwa67620141:12000
Rock Creek complex, 12 to 35 percent slopes, very stony2232860861282wmbwa67620141:12000
Clerf-Rock Creek complex, 35 to 60 percent slopes, very stony38162810867142x77wa67620141:12000
Rock Creek very cobbly clay loam, dry, 0 to 12 percent slopes22011880866802x64wa67620141:12000
Clerf-Rock Creek complex, 12 to 35 percent slopes, very stony38151850867152x78wa67620141:12000
Rock Creek, moist-Selah-Piniiptit complex, 0 to 12 percent slopes80021120868122xbdwa67620141:12000
Zen-Rock Creek, dry complex, 2 to 12 percent slopes71071120867902x9pwa67620141:12000
Tawtnuk-Rock Creek, moist complex, 0 to 5 percent slopes3515910866942x6lwa67620141:12000
Piniiptit-Rock Creek, dry, very stony complex, 12 to 35 percent slopes8314190868052xb5wa67620141:12000
Rock Creek gravelly loam, 35 to 70 percent slopes, very stony224180861272wm9wa67620141:12000
Piniiptit-Rock Creek, dry, very stony complex, 0 to 12 percent slopes8312140868062xb6wa67620141:12000
Rock Creek stony silt loam, 0 to 30 percent slopes19799024859992pfwjwa67620141:12000
Rock Creek very stony silt loam, 0 to 30 percent slopes109306906889129p9wa67719791:24000
Rock Creek-Clint-Simcoe complex, 0 to 45 percent slopes110271066889329pcwa67719791:24000
Taneum-Rock Creek complex, 5 to 15 percent slopes15434536894129qxwa67719791:24000
McDaniel-Rock Creek complex, 5 to 30 percent slopes7618776904729vbwa67719791:24000
Cowiche-Rock Creek complex, 5 to 15 percent slopes287586899429smwa67719791:24000
Rock Creek very stony loam, 0 to 20 percent slopesRvE15006910829x9wa67819701:20000
Rock Creek very stony silt loam, 0 to 30 percent slopes207495712622d4swa68119941:24000

Map of Series Extent

Approximate geographic distribution of the ROCK CREEK soil series. To learn more about how this distribution was mapped, or to compare this soil series extent to others, use the Series Extent Explorer (SEE) application. Source: generalization of SSURGO geometry .