Soil Data Explorer - ATWATER

Official Series Description

Lab Data Summary

Aggregate lab data for the ATWATER soil series. This aggregation is based on all pedons with a current taxon name of ATWATER, 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 ATWATER 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 ATWATER 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 ATWATER 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 ATWATER 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 ATWATER 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 ATWATER 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 ATWATER 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 ATWATER 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 3D mountains figure.

Soil series sharing subgroup-level classification with ATWATER, 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 ATWATER 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
Atwater sand, 0 to 3 percent slopes	AnA	12624	462964	hjrb	ca648	1959	1:20000
Atwater loamy sand, deep over hardpan, 0 to 3 percent slopes	AgA	9065	3251998	2zxzp	ca648	1959	1:20000
Atwater loamy sand, 0 to 3 percent slopes, MLRA 17	AfA	9035	462959	2vnd0	ca648	1959	1:20000
Atwater loamy sand, imperfectly drained variant, 0 to 3 percent slopes	AkA	1908	462963	hjr9	ca648	1959	1:20000
Atwater loamy sand, deep over hardpan, 3 to 8 percent slopes	AgB	1677	462962	hjr8	ca648	1959	1:20000
Atwater sand, 3 to 8 percent slopes	AnB	1269	462965	hjrc	ca648	1959	1:20000
Atwater loamy sand, deep hardpan, poorly drained variant, 0 to percent slopes	AdA	1190	462958	hjr4	ca648	1959	1:20000
Atwater loamy sand, 3 to 8 percent slopes, MLRA 17	AfB	843	462960	2vnd4	ca648	1959	1:20000
Atwater loamy sand, moderately deep and deep over hardpan, 0 to 3 percent slopes	AwA	4404	463325	hk3z	ca651	1959	1:20000
Atwater loamy sand, 0 to 3 percent slopes, MLRA 17	AtA	3354	3295853	30r8j	ca651	1959	1:20000
Atwater loamy sand, 3 to 8 percent slopes, MLRA 17	AtB	2553	463324	2vnd4	ca651	1959	1:20000
Atwater loamy sand, moderately deep and very deep over hardpan, 3 to 8 percent slopes	AwB	1575	463326	hk40	ca651	1959	1:20000
Atwater sandy loam, 0 to 3 percent slopes	ArA	11110	464191	hl0x	ca654	1966	1:24000
Atwater loamy sand, 0 to 3 percent slopes, MLRA 17	AoA	5989	464188	2vnd0	ca654	1966	1:24000
Atwater sandy loam, moderately deep, 0 to 3 percent slopes	AtA	4954	464194	hl10	ca654	1966	1:24000
Atwater sandy loam, clay substratum, 0 to 3 percent slopes	AsA	798	464193	hl0z	ca654	1966	1:24000
Atwater loamy sand, 3 to 9 percent slopes	AoB	786	464189	hl0v	ca654	1966	1:24000
Atwater sandy loam, 3 to 9 percent slopes	ArB	595	464192	hl0y	ca654	1966	1:24000
Atwater loamy sand, moderately deep, 0 to 3 percent slopes	ApA	545	464190	hl0w	ca654	1966	1:24000

Map of Series Extent

Approximate geographic distribution of the ATWATER 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).