Soil Data Explorer - ARNOLD

Official Series Description

Lab Data Summary

Aggregate lab data for the ARNOLD soil series. This aggregation is based on all pedons with a current taxon name of ARNOLD, 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 ARNOLD 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 ARNOLD 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 ARNOLD 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 ARNOLD 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 ARNOLD 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).

Competing Series

Soil series competing with ARNOLD 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 ARNOLD 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 ARNOLD 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).

Soil series sharing subgroup-level classification with ARNOLD, 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

No block diagrams are available.

Map Units

Map units containing ARNOLD 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
Arnold loamy sand, 15 to 50 percent slopes, MLRA 15	AkF	23650	455551	2w62n	ca053	1972	1:24000
Arnold-Santa Ynez complex	Ar	11400	455553	h918	ca053	1972	1:24000
Arnold loamy sand, 9 to 20 percent slopes, MLRA 15	AkD	5030	455550	2w62p	ca053	1972	1:24000
Arnold-San Andreas complex	Am	4145	455552	h917	ca053	1972	1:24000
Arnold loamy sand, 15 to 30 percent slopes, eroded, MLRA 15	AtE2	1597	456158	2w62l	ca069	1965	1:20000
Arnold loamy sand, 30 to 50 percent slopes, severely er oded	AtF3	547	456159	h9nt	ca069	1965	1:20000
Arnold loamy sand, 9 to 20 percent slopes, MLRA 15	AtD	287	456157	2w62p	ca069	1965	1:20000
Arnold loamy sand, 15 to 50 percent slopes, MLRA 15	103	3940	457075	2w62n	ca664	1977	1:24000
Arnold loamy sand, 5 to 15 percent slopes	102	3335	457074	hbmb	ca664	1977	1:24000
Arnold-San Andreas complex, 15 to 50 percent slopes, MLRA 15	108	3580	457211	2w62r	ca665	1977	1:24000
Arnold loamy sand, 9 to 30 percent slopes	107	2565	457210	hbrq	ca665	1977	1:24000
Arnold-San Andreas complex, 15 to 50 percent slopes, MLRA 15	340	2315	458495	2w62r	ca667	2003	1:24000
Arnold-San Andreas complex, 9 to 30 percent slopes	339	340	458532	hd4c	ca667	2003	1:24000
Arnold sand, 15 to 45 percent slopes	ArF	29443	457323	hbwc	ca672	1966	1:20000
Arnold sand, 5 to 15 percent slopes	ArD	5932	457322	hbwb	ca672	1966	1:20000
Arnold sand, 9 to 45 percent slopes, severely eroded	ArF3	2077	457324	hbwd	ca672	1966	1:20000
Arnold loamy sand, 15 to 30 percent slopes, eroded, MLRA 20	AgE2	426	457556	2w62m	ca673	1974	1:24000
Arnold loamy sand, 30 to 50 percent slopes, eroded	AgF2	378	457557	hc3x	ca673	1974	1:24000
Arnold loamy sand, 9 to 15 percent slopes, warm MAAT, MLRA 20	AgD	268	457555	2w62q	ca673	1974	1:24000
Arnold loamy sand, 50 to 75 percent slopes	AgG	130	457558	hc3y	ca673	1974	1:24000
Calleguas-Arnold complex, 30 to 50 percent slopes, erod ed	CbF2	10518	457670	hc7k	ca674	1968	1:24000
Arnold sand, 9 to 50 percent slopes	AsF	1547	457662	hc79	ca674	1968	1:24000
Calleguas-Arnold complex, 30 to 50 percent slopes, erod ed	CbF2vt		3003613	hc7k	ca692	2001	1:24000

Map of Series Extent

Approximate geographic distribution of the ARNOLD 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).