Official Series Description


Lab Data Summary

Aggregate lab data for the RAVENROCK soil series. This aggregation is based on all pedons with a current taxon name of RAVENROCK, 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 RAVENROCK 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
130A84P0719S1984MD021001Ravenrock7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties39.6248,-77.4672444
130A84P0721S1984MD021003Ravenrock7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties39.6256222,-77.4790778
130A84P0723S1984MD021005Ravenrock7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties39.6248278,-77.4773278

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the RAVENROCK 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 RAVENROCK 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 RAVENROCK 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 RAVENROCK 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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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 RAVENROCK 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 RAVENROCK series and competing. 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 RAVENROCK 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 .

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Click the image to view it full size.

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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 RAVENROCK, 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 RAVENROCK 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
Ravenrock-Highfield-Rock outcrop complex, 25 to 65 percent slopesReF8228534857kykgmd02120011:12000
Ravenrock-Highfield-Rock outcrop complex, 15 to 25 percent slopesReD5627534856kykfmd02120011:12000
Ravenrock-Rohrersville complex, 3 to 15 percent slopes, extremely stonyRfC3864534858kykhmd02120011:12000
Ravenrock-Highfield-Rock outcrop complex, 8 to 15 percent slopesReC3415534855kykdmd02120011:12000
Ravenrock gravelly loam, 15 to 25 percent slopes, extremely stonyRaD1531534907kym2md02120011:12000
Ravenrock-Highfield-Rock outcrop complex, 0 to 8 percent slopesReB410534854kykcmd02120011:12000
Ravenrock-Rohrersville complex, 3 to 15 percent slopes, extremely stonyRcC956534480ky59md04319981:12000
Ravenrock-Highfield-Rock outcrop complex, 15 to 25 percent slopesReD781534483ky5dmd04319981:12000
Ravenrock-Highfield-Rock outcrop complex, 8 to 15 percent slopesReC641534482ky5cmd04319981:12000
Ravenrock-Highfield-Rock outcrop complex, 25 to 65 percent slopesReF389534484ky5fmd04319981:12000
Ravenrock gravelly loam, 15 to 25 percent slopes, extremely stonyRaD94534477ky56md04319981:12000
Ravenrock gravelly loam, 3 to 15 percent slopes, extremely stonyRaC24534476ky55md04319981:12000
Ravenrock-Highfield-Rock outcrop complex, 15 to 25 percent slopesRcD2751545640l9s9pa00119911:24000
Ravenrock-Highfield-Rock outcrop complex, 8 to 15 percent slopesRcC525545639l9s8pa00119911:24000
Ravenrock-Highfield-Rock outcrop complex, 25 to 65 percent slopesRcF415545641l9sbpa00119911:24000
Ravenrock-Rohrersville complex, 3 to 15 percent slopes, extremely stonyRdC100545642l9scpa00119911:24000

Map of Series Extent

Approximate geographic distribution of the RAVENROCK 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 .