Soil Data Explorer - SNELL

Official Series Description

Lab Data Summary

Aggregate lab data for the SNELL soil series. This aggregation is based on all pedons with a current taxon name of SNELL, 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 SNELL were used in the calculation. Source: KSSL snapshot (updated 2020-03-18). 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
10	98P0244	S1997OR023034	SNELL	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	44.5377769,-119.480278

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the SNELL 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 SNELL 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 SNELL 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 SNELL 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 terrace figure.

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

Competing Series

Soil series competing with SNELL 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 SNELL 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 SNELL 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 terrace figure.

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

Soil series sharing subgroup-level classification with SNELL, 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. OR-2012-05-10-11 | Baker County Area - June 1997

   Typical pattern of soils and parent material In the Gwinly-Immig-Snell unit (Soil Survey of Baker County Area, Oregon; June 1997).

Map Units

Map units containing SNELL 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
Snell very stony loam, 5 to 30 percent slopes	228	345	459137	hdrw	ca602	1978	1:24000
Snell very stony loam, 5 to 30 percent slopes	177	1100	486643	jbd5	ca684	1986	1:24000
Snell-Sharesnout complex, 5 to 40 percent slopes	157	29204	486009	j9qq	id675	1992	1:24000
Cleavage-Snell complex, 5 to 50 percent slopes	42	20582	486192	j9xm	id675	1992	1:24000
Doodlelink-Snell-Parkay complex, 5 to 40 percent slopes	50	6147	486210	j9y6	id675	1992	1:24000
Snell-Kiyi association, 3 to 40 percent slopes	156	5993	486007	j9qn	id675	1992	1:24000
Snell-Ateron complex, 12 to 35 percent north slopes	155D	31791	62139	22nh	or604	1988	1:24000
Snell-Ateron complex, 35 to 60 percent north slopes	155E	22793	62140	22nj	or604	1988	1:24000
Gwinly-Immig-Snell very cobbly silt loams, 12 to 35 percent slopes	60D	6086	62239	22rq	or604	1988	1:24000
Sag-Snell complex, 12 to 35 percent north slopes	146D	5586	62121	22mx	or604	1988	1:24000
Sag-Snell complex, 35 to 50 percent north slopes	146E	3727	62122	22my	or604	1988	1:24000
Gwinly-Immig-Snell very cobbly silt loams, 35 to 50 percent slopes	60E	3659	62240	22rr	or604	1988	1:24000
Snell-Sag complex, 50 to 70 percent north slopes	157F	2473	62142	22nl	or604	1988	1:24000
Snell-Rock outcrop complex, 12 to 35 percent north slopes	156D	1328	62141	22nk	or604	1988	1:24000
Gwinly-Immig-Snell very cobbly silt loams, 50 to 70 percent slopes	60F	1216	62241	22rs	or604	1988	1:24000
Rock outcrop-Snell complex, 50 to 80 percent north slopes	137F	1033	62106	22mf	or604	1988	1:24000
Snell-Harlow complex, moist, 2 to 15 percent slopes	3331AO	73	3120215	njh9	or607	2018	1:24000
Snell-Bocker-Anatone complex, 15 to 30 percent slopes	3323BO	57	3120429	1r021	or607	2018	1:24000
Harlow-Snell-Imnaha complex, moist, 30 to 60 percent south slopes	73E	144	64030	24mh	or625	1979	1:20000
Ateron-Snell complex, 20 to 50 percent south slopes	4316NO	28	3385478	rcr2	or626	2018	1:24000
Snell-Imnaha-Rock outcrop complex, moist, 60 to 90 percent north slopes	6017DN	22	3122084	njht	or626	2018	1:24000
Snell-Bocker-Anatone complex, 30 to 60 percent slopes	3323CO	1965	2437089	1r022	or631	2018	1:24000
Snell-Bocker-Anatone complex, 0 to 15 percent slopes	3323AO	644	2437088	1qqjl	or631	2018	1:24000
Gwinly-Immig-Snell very cobbly silt loams, 35 to 50 percent slopes	4030CO	324	2437149	22rr	or631	2018	1:24000
Snell-Bocker-Anatone complex, 15 to 30 percent slopes	3323BO	169	2486713	1r021	or631	2018	1:24000
Snell-Imnaha-Rock outcrop complex, moist, 60 to 90 percent north slopes	6017DN	110	2437438	njht	or631	2018	1:24000
Harlow-Imnaha-Snell complex, moist, 30 to 60 percent south slopes	3328CO	99	2437096	nj5g	or631	2018	1:24000
Gwinly-Immig-Snell very cobbly silt loams, 12 to 35 percent slopes	4030BO	99	2437148	22rq	or631	2018	1:24000
Harlow-Imnaha-Snell complex, moist, 15 to 30 percent south slopes	3328BO	70	2437095	nj57	or631	2018	1:24000
Gwinly-Immig-Snell very cobbly silt loams, 50 to 70 percent slopes	4030DO	40	2437150	22rs	or631	2018	1:24000
Snell-Harlow complex, moist, 2 to 15 percent slopes	3331AO	17	2437099	njh9	or631	2018	1:24000
Sag-Snell complex, 35 to 50 percent north slopes	4035CN	16	2437155	22my	or631	2018	1:24000
Snell-Ateron complex, 12 to 35 percent north slopes	4040BN	5	2486804	22nh	or631	2018	1:24000
Snell very stony loam, 35 to 70 percent north slopes	56F	8825	61358	21v9	or648	1977	1:24000
Snell-Bocker-Anatone complex, 15 to 30 percent slopes	3323BO	56	3121458	1r021	or667	1984	1:20000
Snell-Harlow complex, 15 to 30 percent north slopes	281	21142	84671	2v3b	or670	1999	1:24000
Snell-Harlow complex, 2 to 15 percent slopes	280	12452	84670	2v39	or670	1999	1:24000
Snell-Harlow complex, 30 to 60 percent north slopes	282	6745	84672	2v3c	or670	1999	1:24000
Harlow-Snell-Imnaha complex, moist, 2 to 15 percent slopes	123	5316	84495	2txn	or670	1999	1:24000
Snell-Harlow complex, 15 to 30 percent south slopes	283	4763	84673	2v3d	or670	1999	1:24000
Harlow-Snell-Imnaha complex, moist, 30 to 60 percent south slopes	125	4585	84497	2txq	or670	1999	1:24000
Snell-Harlow silt loams, 0 to 15 percent slopes	284	4339	84674	2v3f	or670	1999	1:24000
Snell-Harlow-Imnaha complex, moist, 30 to 60 percent north slopes	286	3104	84676	2v3h	or670	1999	1:24000
Harlow-Snell-Imnaha complex, moist, 15 to 30 percent south slopes	124	3011	84496	2txp	or670	1999	1:24000
Snell-Imnaha-Rock outcrop complex, moist, 60 to 90 percent north slopes	288	1850	84679	2v3l	or670	1999	1:24000
Snell-Harlow-Imnaha complex, moist, 15 to 30 percent north slopes	285	1351	84675	2v3g	or670	1999	1:24000
Snell-Harlow-Rock outcrop complex, 60 to 90 percent north slopes	287	122	84678	2v3k	or670	1999	1:24000
Demasters-Snell complex, 30 to 70 percent north slopes	60	23	84785	2v70	or670	1999	1:24000
Harlow-Snell-Rock outcrop complex, 40 to 90 percent south slopes	126	17	84462	2twl	or670	1999	1:24000
Snell silty clay loam, 3 to 8 percent slopes	279	16	84466	2twq	or670	1999	1:24000
Harlow-Snell-Harlow variant complex, 3 to 30 percent slopes	45	5271	69446	2b86	wa603	1984	1:24000
Snell silty clay loam, 3 to 8 percent slopes	94	4064	69500	2b9y	wa603	1984	1:24000
Getaway-Snell complex, 30 to 70 percent slopes	35	2971	69435	2b7v	wa603	1984	1:24000
Snell-Harlow-Demasters complex, 60 to 90 percent slopes	96	1714	69502	2bb0	wa603	1984	1:24000
Harlow-Snell very stony clay loams, 30 to 70 percent slopes	44	1675	69445	2b85	wa603	1984	1:24000
Snell-Harlow-Rock outcrop complex, 40 to 90 percent slopes	97	1301	69503	2bb1	wa603	1984	1:24000
Demasters-Snell complex, 30 to 70 percent slopes	26	988	69425	2b7j	wa603	1984	1:24000
Harlow-Snell-Rock outcrop complex, 40 to 90 percent slopes	46	835	69447	2b87	wa603	1984	1:24000
Harlow-Snell-Imnaha complex, moist, 2 to 15 percent slopes	118	529	817782	wfz2	wa603	1984	1:24000
Snell silty clay loam, 8 to 15 percent slopes	95	309	69501	2b9z	wa603	1984	1:24000
Harlow-Snell-Imnaha complex, moist, 30 to 60 percent south slopes	120	235	817783	wfz3	wa603	1984	1:24000
Getaway-Snell complex, 30 to 70 percent slopes	35	105	69745	2bkv	wa623	1970	1:20000
Snell-Harlow-Demasters complex, 60 to 90 percent slopes	96	23	69765	2blh	wa623	1970	1:20000

Map of Series Extent

Approximate geographic distribution of the SNELL 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).