Official Series Description


Lab Data Summary

Aggregate lab data for the PASSCREEK soil series. This aggregation is based on all pedons with a current taxon name of PASSCREEK, 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 PASSCREEK were used in the calculation. Source: KSSL snapshot . Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

There are insufficient data to create the lab data summary figure.


Water Balance

Monthly water balance estimated using a leaky-bucket style model for the PASSCREEK 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.

Click the image to view it full size.



Click the image to view it full size.

Sibling Summary

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

Click the image to view it full size.

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

Click the image to view it full size.

Geomorphic description summaries for the PASSCREEK 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 .

Click the image to view it full size.

Click the image to view it full size.

Click the image to view it full size.

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 PASSCREEK share the same family level classification in Soil Taxonomy. Source: parsed OSD records and snapshot of the SC database .

Click the image to view it full size.

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

Click the image to view it full size.

Geomorphic description summaries for the PASSCREEK 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 .

Click the image to view it full size.

Click the image to view it full size.

Click the image to view it full size.

Click the image to view it full size.

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

Soil series sharing subgroup-level classification with PASSCREEK, 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 PASSCREEK 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
Passcreek channery silt loam, 6 to 15 percent slopesPaD57031475294yj0mt60919711:24000
Passcreek-Lake Creek channery loams, 15 to 35 percent slopesPcE29351475304yj1mt60919711:24000
Passcreek-Poin, stony complex, 6 to 20 percent slopes756D23114247701jtlbmt67020071:24000
Cheadle-Passcreek, cobbly subsoil-Rock outcrop complex, 5 to 25 percent slopes14116840501678jv15wy60119911:24000
Nathale-Passcreek, cobbly subsoil-Rock outcrop complex, 10 to 60 percent slopes19113854501735jv30wy60119911:24000
Rimton-Passcreek, cobbly subsoil-Miracle complex, 10 to 60 percent slopes2083920501756jv3pwy60119911:24000
Nathrop-Passcreek-Starley complex, 2 to 45 percent slopes -- Draft3881600015219153cdwy6031:24000
Leavitt-Passcreek associationLE11205350876cs3lwy61919711:24000
Nathrop-Passcreek associationNP10437350896cs47wy61919711:24000
Passcreek-Sublette-Slipman associationPA8468350900cs4cwy61919711:24000
Nathrop-Passcreek-Starley association, 3 to 40 percent slopes184785361174d3tswy63319871:24000
Nathrop-Passcreek-Starley association, 2 to 30 percent slopes275943715803859g0wy65019821:24000
Leavitt-Passcreek association, 2 to 30 percent slopes24471815803559fxwy65019821:24000
Nathrop Variant-Nielsen-Passcreek association, 2 to 35 percent slopes28155715803959g1wy65019821:24000
Shook-Badwater-Passcreek families, complex29961081430565442xtsxwy66519961:62500
Leavitt-Passcreek loams, 2 to 30 percent slopes9991203415408991nqffwy71920131:24000

Map of Series Extent

Approximate geographic distribution of the PASSCREEK 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 .