Soil Data Explorer - ATLOW

Official Series Description

Lab Data Summary

Aggregate lab data for the ATLOW soil series. This aggregation is based on all pedons with a current taxon name of ATLOW, 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 ATLOW were used in the calculation. Source: KSSL snapshot (updated 2025-01-21). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

Pedons used in the lab summary:

MLRA	Lab ID	Pedon ID	Taxonname	CI	NSSL / NASIS Reports	Link To SoilWeb GMap
24	82P0714	82NV027007	Atlow	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.6744461,-118.0483322
24	88P0694	88NV013005	Atlow	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.9150009,-117.3988876
28B	11N0092	2010NV033111	Atlow	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.8825056,-115.3679361

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the ATLOW 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 ATLOW series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2025-10-03), parsed OSD records (updated 2025-10-07) and snapshot of SC database (updated 2025-12-01).

Select annual climate data summaries for the ATLOW 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 2025-10-08).

Geomorphic description summaries for the ATLOW 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 2025-10-06).

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

Competing Series

Soil series competing with ATLOW share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2025-10-07) and snapshot of the SC database (updated 2025-12-01).

Select annual climate data summaries for the ATLOW 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 2025-10-08).

Geomorphic description summaries for the ATLOW 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 2025-10-06).

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 ATLOW, 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 2025-12-01).

Block Diagrams

No block diagrams are available.

Map Units

Map units containing ATLOW 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
Soughe-Atlow-Segura association	8210	7021	3423169	312t2	nv622	1972	1:24000
Atlow-Penelas-Zimbob association	8610	2101	3423167	312tv	nv622	1972	1:24000
Atlow-Upatad-Soughe association	8615	1051	3423165	312tw	nv622	1972	1:24000
Upatad-Atlow association	1190	14515	478601	j20r	nv766	1994	1:24000
Atlow association	620	4276	478411	2wbhl	nv766	1994	1:24000
Soughe-Atlow-Segura association	8210	12987	3423193	312t2	nv768	1985	1:63360
Jung-Atlow-McVegas association	3846	5251	479249	j2pn	nv768	1985	1:63360
Colbar-Atlow-Burrita association	2570	3294	479135	j2kz	nv768	1985	1:63360
Jung-Stingdorn-Atlow association	3845	3263	479248	2whlt	nv768	1985	1:63360
Atlow-Upatad-Soughe association	8615	2861	3423189	312tw	nv768	1985	1:63360
Old Camp-Atlow-Osoll association	2798	1683	479159	j2lr	nv768	1985	1:63360
Atlow-Stingdorn association	1450	785	479060	j2hk	nv768	1985	1:63360
Atlow-Penelas-Zimbob association	8610	151	3423192	312tv	nv768	1985	1:63360
Atlow-wiskan association MLRA 24	701	49788	475308	2wbj6	nv769	1986	1:24000
Puffer, very steep-Atlow-Puffer association	957	13960	475337	hymg	nv769	1986	1:24000
Hoot-Wiskan-Atlow association	1071	5818	475172	hyg4	nv769	1986	1:24000
Atlow, steep-Daick-Atlow association	703	4328	475309	hylk	nv769	1986	1:24000
Atlow, steep-Hoot-Atlow association	704	1364	475310	hyll	nv769	1986	1:24000
Atlow-Colbar-Rock outcrop association	1453	6035	479475	j2xy	nv775	1985	1:24000
Atlow, steep-Atlow-Stingdorn association	1450	4670	479472	j2xv	nv775	1985	1:24000
Jung-Stingdorn-Atlow association	3845	4455	479657	2whlt	nv775	1985	1:24000
Minat-Colbar-Atlow association	3624	3225	479641	j339	nv775	1985	1:24000
Atlow-Minat-Old Camp association	1452	2385	479474	j2xx	nv775	1985	1:24000
Atlow-Reluctan-Trunk association	1451	2225	479473	j2xw	nv775	1985	1:24000
Old Camp-Atlow-Osoll association	2798	2130	479589	j31m	nv775	1985	1:24000
Soughe-Atlow-Segura association	8210	1774	3423202	312t2	nv776	1983	1:63360
Atlow association	272	9	2634042	2wbhl	nv776	1983	1:63360
Atlow-wiskan association MLRA 24	701	15651	475886	2wbj6	nv777	1993	1:24000
Burrita-Soughe-Atlow association	651	9097	475857	hz57	nv777	1993	1:24000
Rocconda-Quomus-Atlow association	1185	7948	475439	hyqr	nv777	1993	1:24000
Atlow-Hoot association	704	4091	475888	hz67	nv777	1993	1:24000
Atlow-Gowjai association	700	1268	475885	hz64	nv777	1993	1:24000
Upatad-Atlow-Douhide association	6752	22159	2215810	2dcqr	nv778	2013	1:24000
Segura-Upatad-Atlow association	6754	9143	2453601	2nc5f	nv778	2013	1:24000
Atlow association	6271	2014	2215778	2dcpq	nv778	2013	1:24000
Atlow-Broland-Yody association	6279	1965	2215779	2dcpr	nv778	2013	1:24000
Segura-Atlow-Douhide association	4623	1814	2682230	2rx4f	nv778	2013	1:24000
Upatad-Atlow association	6750	720	2215809	2dcqq	nv778	2013	1:24000
Atlow-Chen-Pioche association	4032	13113	480116	j3lm	nv779	2004	1:24000
Tarnach-Atlow-Pioche association	1210	8501	479946	j3f4	nv779	2004	1:24000
Atlow-Tarnach association	3250	2072	480040	j3j5	nv779	2004	1:24000
Atlow-Broland-Yody association	6279	112	2817247	2tzhn	nv779	2004	1:24000
Atlow association	2710	22	1144495	17dy6	nv779	2004	1:24000
Upatad-Atlow-Douhide association	752	24193	480582	j42n	nv780	1990	1:24000
Atlow-Maderbak-Rubble land association	270	18245	480384	j3w8	nv780	1990	1:24000
Atlow association	271	16796	480385	2wbhl	nv780	1990	1:24000
Atlow-Upatad association	275	10088	480389	j3wf	nv780	1990	1:24000
Upatad-Atlow association	750	7235	480580	j42l	nv780	1990	1:24000
Upatad-Cropper-Atlow association	753	5585	480583	j42p	nv780	1990	1:24000
Stewval-Maderbak-Atlow association	276	3975	480390	j3wg	nv780	1990	1:24000
Atlow-Broland-Yody association	279	2950	480393	j3wk	nv780	1990	1:24000
Soughe-Atlow-Segura association	8210	4902	3423226	312t2	nv781	1994	1:24000
Atlow-Penelas-Zimbob association	8610	1270	3423220	312tv	nv781	1994	1:24000
Atlow-Upatad-Soughe association	8615	660	3423218	312tw	nv781	1994	1:24000
Soughe-Atlow-Segura association	8210	133057	3423050	312t2	nv782	2025	1:24000
Atlow-Upatad-Soughe association	8615	57867	3423030	312tw	nv782	2025	1:24000
Atlow-Penelas-Zimbob association	8610	14388	3423037	312tv	nv782	2025	1:24000
Upatad-Atlow-Douhide association	6752	24	2817282	2tzk5	nv783	1991	1:24000
Skedaddle-Atlow-Rock outcrop complex, 5 to 30 percent slopes	300	36459	490721	jgmq	or628	1997	1:24000
Atlow-Skedaddle complex, 5 to 30 percent slopes	24	36235	490635	jgjy	or628	1997	1:24000
Atlow very stony loam, 5 to 30 percent slopes	21	12984	490596	jghp	or628	1997	1:24000
Skedaddle-Atlow-Rock outcrop complex, 30 to 50 percent slopes	301	12412	490722	jgmr	or628	1997	1:24000
Atlow-Rock outcrop complex, 5 to 30 percent slopes	22	9751	490609	jgj3	or628	1997	1:24000
Atlow-Rock outcrop complex, 30 to 50 percent slopes	23	6788	490622	jgjj	or628	1997	1:24000
Olac-Atlow complex, 2 to 10 percent slopes	245	461	490642	jgk5	or628	1997	1:24000
Atlow-Rock outcrop complex, 20 to 50 percent slopes	209	1499	1689720	1tq93	or635	2006	1:24000
Atlow-Rogerson complex, 2 to 35 percent slopes	351	35671	2511932	2q9d8	or644	2021	1:24000
Atlow-Hardtrigger complex, 15 to 50 percent slopes	372	4999	2565234	2qy3x	or644	2021	1:24000
Atlow-Colbar complex, 15 to 50 percent slopes	366	1863	2565230	2qy3s	or644	2021	1:24000

Map of Series Extent

Approximate geographic distribution of the ATLOW 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 2025-10-19).