Soil Data Explorer - THATUNA

Official Series Description

Lab Data Summary

Aggregate lab data for the THATUNA soil series. This aggregation is based on all pedons with a current taxon name of THATUNA, 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 THATUNA were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). 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
43A	77-ID-2987	77ID057015	Thatuna	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.5963,-116.7652
9	77-ID-2981	77ID057012	Thatuna	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.7477,-117.001
9	86P0072	85WA075010	Thatuna	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	47.0297203,-117.1541672
9	86P0075	85WA075013	Thatuna	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	47.2252769,-117.1102753
9	99P0329	S1998WA063004	Thatuna	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	47.2818413,-117.2276535

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the THATUNA 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 THATUNA series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-02) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the THATUNA 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 THATUNA 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 THATUNA share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-02) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the THATUNA 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 THATUNA 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.

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 THATUNA, 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. WA-2012-05-11-05 | Whitman County - April 1980

   Typical landscape in the Palouse association (Soil Survey of Whitman County, Washington; April 1980).

2. WA-2012-05-11-06 | Whitman County - April 1980

   Typical landscape in the Palouse-Staley association (Soil Survey of Whitman County, Washington; April 1980).

3. WA-2012-05-11-07 | Whitman County - April 1980

   Typical landscape in the Palouse-Thatuna association (Soil Survey of Whitman County, Washington; April 1980).

4. WA-2012-05-11-08 | Whitman County - April 1980

   Typical landscape in the Palouse-Thatuna-Naff association (Soil Survey of Whitman County, Washington; April 1980).

5. WA-2012-05-11-09 | Whitman County - April 1980

   Typical landscape in the Palouse-Thatuna-Tekoa association (Soil Survey of Whitman County, Washington; April 1980).

Map Units

Map units containing THATUNA 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
Latahco-Thatuna complex, 0 to 5 percent slopes	28	14499	2487273	2ph6m	id057	2013	1:24000
Naff-Thatuna complex, 7 to 25 percent slopes	34	13225	2487279	2ph6t	id057	2013	1:24000
Tilma-Thatuna complex, 7 to 25 percent slopes	57	8736	2487302	2ph7k	id057	2013	1:24000
Thatuna-Naff complex, 25 to 40 percent slopes	54	3375	2487299	2ph7g	id057	2013	1:24000
Thatuna silt loam, 3 to 7 percent slopes	53	929	2487298	2ph7f	id057	2013	1:24000
Latahco-Thatuna silt loams, 0 to 7 percent slopes	141	626	79431	2nn9	id606	1976	1:24000
Cald-Thatuna silt loams, 0 to 7 percent slopes	111	546	79401	2nmb	id606	1976	1:24000
Caldwell-Thatuna complex, 0 to 8 percent slopes	2vz57	16	2662870	2vz57	id606	1976	1:24000
Thatuna-Cald complex, 0 to 8 percent slopes	1hn57	6	2662953	1hn57	id606	1976	1:24000
Thatuna-Naff-Tilma complex, 10 to 25 percent slopes	136	5045	79603	2ntv	id611	1994	1:24000
Thatuna-Naff, eroded complex, 10 to 25 percent slopes	134	5040	79601	2nts	id611	1994	1:24000
Thatuna-Naff complex, 10 to 25 percent slopes	133	4152	79600	2ntr	id611	1994	1:24000
Thatuna-Naff complex, 25 to 40 percent slopes	135	2258	79602	2ntt	id611	1994	1:24000
Naff-Thatuna complex, 2 to 10 percent slopes	93	1998	79710	2ny9	id611	1994	1:24000
Latahco-Thatuna complex, 0 to 3 percent slopes	75	1499	79690	2nxn	id611	1994	1:24000
Thatuna-Naff complex, 8 to 25 percent slopes	405	1726	1389852	1hn7y	id620	2013	1:24000
Thatuna-Cald complex, 0 to 8 percent slopes	118	1403	1389768	1hn57	id620	2013	1:24000
Naff-Thatuna complex, 8 to 25 percent slopes	416	1391	1389858	1hn84	id620	2013	1:24000
Naff-Thatuna complex, 3 to 8 percent slopes	414	1357	1389856	1hn82	id620	2013	1:24000
Thatuna-Caldwell complex, 0 to 4 percent slopes	116	1051	2376092	2krj4	id620	2013	1:24000
Thatuna-Naff complex, 25 to 40 percent slopes	406	410	1389853	1hn7z	id620	2013	1:24000
Thatuna silt loam, 1 to 7 percent slopes	96B	3250	64590	256k	or667	1984	1:20000
Thatuna silt loam, 7 to 20 percent slopes	96D	584	64591	256l	or667	1984	1:20000
Naff-Thatuna complex, 8 to 25 percent slopes	6062	27401	85945	2wff	wa063	2012	1:24000
Caldwell-Thatuna complex, 0 to 8 percent slopes	1010	10917	85933	2vz57	wa063	2012	1:24000
Thatuna-Naff complex, 15 to 30 percent slopes	6131	8185	621223	nvfg	wa063	2012	1:24000
Thatuna-Naff complex, 8 to 15 percent slopes	6130	5263	85953	2wfp	wa063	2012	1:24000
Thatuna silt loam, 7 to 25 percent slopes	104	69322	68483	2984	wa075	1975	1:20000
Palouse-Thatuna silt loams, 7 to 25 percent slopes	71	62342	68570	29by	wa075	1975	1:20000
Thatuna silt loam, 25 to 40 percent slopes	105	5700	68484	2985	wa075	1975	1:20000
Palouse-Thatuna silt loams, 25 to 40 percent slopes	72	5279	68571	29bz	wa075	1975	1:20000
Thatuna-Tilma silt loams, 7 to 25 percent slopes	107	4964	68486	2987	wa075	1975	1:20000
Thatuna silt loam, 3 to 7 percent slopes	103	4364	68482	2983	wa075	1975	1:20000
Naff-Thatuna complex, 8 to 25 percent slopes	6062	2561	2651368	2wff	wa075	1975	1:20000
Thatuna-Naff silt loams, 7 to 25 percent slopes	109	1739	68488	2989	wa075	1975	1:20000
Palouse-Thatuna silt loams, 40 to 55 percent slopes	73	933	68572	29c0	wa075	1975	1:20000
Thatuna-Tilma silt loams, 25 to 40 percent slopes	108	849	68487	2988	wa075	1975	1:20000
Caldwell-Thatuna complex, 0 to 8 percent slopes	1010	724	2651338	2vz57	wa075	1975	1:20000
Palouse-Thatuna silt loams, 3 to 7 percent slopes	70	673	68569	29bx	wa075	1975	1:20000
Thatuna silt loam, 40 to 55 percent slopes	106	569	68485	2986	wa075	1975	1:20000
Thatuna-Naff complex, 8 to 25 percent slopes	405	213	2743096	1hn7y	wa075	1975	1:20000
Naff-Thatuna complex, 8 to 25 percent slopes	416	141	2743088	1hn84	wa075	1975	1:20000
Thatuna-Cald complex, 0 to 8 percent slopes	118b	107	2743086	1hn57	wa075	1975	1:20000
Naff-Thatuna complex, 3 to 8 percent slopes	414	79	2743089	1hn82	wa075	1975	1:20000
Thatuna-Naff complex, 15 to 30 percent slopes	6131	55	2651376	nvfg	wa075	1975	1:20000
Thatuna-Naff complex, 8 to 15 percent slopes	6130	49	2651375	2wfp	wa075	1975	1:20000
Thatuna-Caldwell complex, 0 to 4 percent slopes	116b	46	2743084	2krj4	wa075	1975	1:20000
Thatuna-Naff complex, 25 to 40 percent slopes	406	13	2743091	1hn7z	wa075	1975	1:20000

Map of Series Extent

Approximate geographic distribution of the THATUNA 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).