Soil Data Explorer - DERBY

Official Series Description

Lab Data Summary

Aggregate lab data for the DERBY soil series. This aggregation is based on all pedons with a current taxon name of DERBY, 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 DERBY were used in the calculation. Source: KSSL snapshot (updated 2020-03-18). 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 DERBY 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.

Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the DERBY series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-06) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the DERBY series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the DERBY 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 (updated 2023-10-04).

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

Competing Series

Soil series competing with DERBY share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-06) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the DERBY series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the DERBY 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 (updated 2023-10-04).

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 flats position figure.

Soil series sharing subgroup-level classification with DERBY, 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 (updated 2023-10-02).

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. OK-2010-09-29-04 | Logan County - 2006

   Typical pattern of soils and underlying material in the Dougherty-Konawa-Derby general soil map unit (Soil Survey of Logan County, Oklahoma; 2006).

2. OK-2012-02-16-13 | Cleveland County - April 1987

   Typical pattern of soils and underlying material in the Norge-Teller-Vanoss map unit and Asher-Keokuk-Canadian map unit (Soil Survey of Cleveland County, Oklahoma; April 1987).

3. OK-2012-02-17-05 | Logan County - June 1960

   Soils of central and western Logan County on recent alluvium and on loams and sands of Quaternary age. Red beds are exposed in the upper right corner (Soil Survey of Logan County, Oklahoma; June 1960).

4. OK-2012-02-17-31 | Payne County - April 1987

   Typical pattern of soils and underlying material in the Konawa-Dougherty-Derby map unit (Soil Survey of Payne Oklahoma; April 1987).

Map Units

Map units containing DERBY 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
Aline-Derby fine sands, 5 to 12 percent slopes	6200	3359	3221132	2xqql	ks007	1973	1:24000
Aline-Derby fine sands, 5 to 12 percent slopes	6200	7203	3221135	2xqql	ks077	1965	1:24000
Aline-Derby fine sands, 5 to 12 percent slopes	6200	14	1444619	2xqql	ks191	1974	1:24000
Aline-Derby fine sands, 5 to 12 percent slopes	AlDE	5259	3041112	2xqql	ok003	1971	1:24000
Derby loamy fine sand, 3 to 15 percent slopes	DerE	5188	622534	2tq7q	ok003	1971	1:24000
Gracemore, rarely flooded-Derby fine sands, 0 to 3 percent slopes, saline	GcDB	1228	381423	2y2sj	ok003	1971	1:24000
Derby loamy fine sand, 15 to 30 percent slopes	DerG	618	622533	nwsq	ok003	1971	1:24000
Derby-Goodnight fine sands, 5 to 12 percent slopes	DeGE	59	381447	2y2sh	ok003	1971	1:24000
Derby loamy fine sand, 0 to 3 percent slopes	DerB	201	3109239	2tq7p	ok011	1965	1:24000
Derby loamy fine sand, 3 to 15 percent slopes	13	1524	382086	2tq7q	ok027	1984	1:24000
Derby loamy fine sand, 0 to 3 percent slopes	12	781	382085	2tq7p	ok027	1984	1:24000
Derby-Urban land complex, 3 to 15 percent slopes	14	134	382087	dtld	ok027	1984	1:24000
Derby loamy fine sand, 3 to 15 percent slopes	DerE	44	2516363	2tq7q	ok037	1952	1:24000
Derby loamy fine sand, 3 to 15 percent slopes	53	4380	382744	2tq7q	ok053	1983	1:24000
Derby loamy fine sand, 15 to 30 percent slopes	54	2955	382745	dv8m	ok053	1983	1:24000
Derby loamy fine sand, 3 to 8 percent slopes	ToC	538	383256	dvt3	ok067	1967	1:24000
Derby loamy fine sand, 3 to 8 percent slopes	DerD	3103	383607	dw5f	ok083	1994	1:12000
Derby loamy fine sand, 8 to 15 percent slopes	DerE	2137	383608	dw5g	ok083	1994	1:12000
Derby loamy fine sand, 0 to 3 percent slopes	DerB	1952	383606	2tq7p	ok083	1994	1:12000
Derby loamy fine sand, 0 to 3 percent slopes	DerB	23000	3109238	2tq7p	ok093	1965	1:24000
Derby-Goodnight fine sands, 5 to 12 percent slopes	DeGE	4606	3221156	2y2sh	ok093	1965	1:24000
Derby-Urban land-Dougherty complex, 0 to 15 percent slopes	DUDE	2222	384282	dww6	ok109	1996	1:12000
Derby-Dougherty complex, 0 to 15 percent slopes	DeDE	1703	384285	dww9	ok109	1996	1:12000
Derby loamy fine sand, 8 to 15 percent slopes	DerE	1299	384287	dwwc	ok109	1996	1:12000
Derby loamy fine sand, 0 to 3 percent slopes	DerB	659	384286	2tq7p	ok109	1996	1:12000
Derby loamy fine sand, 3 to 15 percent slopes	DerE	246	1675893	2tq7q	ok117	2007	1:24000
Derby loamy fine sand, 3 to 15 percent slopes	DerE	3436	1908245	2tq7q	ok119	1983	1:24000
Derby-Slaughterville complex, 1 to 5 percent slopes	82	1780	384584	dx5y	ok119	1983	1:24000
Derby loamy fine sand, 15 to 35 percent slopes	90	1219	384590	dx64	ok119	1983	1:24000

Map of Series Extent

Approximate geographic distribution of the DERBY 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 (updated 2023-10-04).