Soil Data Explorer - ATHENA

Official Series Description

Lab Data Summary

Aggregate lab data for the ATHENA soil series. This aggregation is based on all pedons with a current taxon name of ATHENA, 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 ATHENA 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
9	86P0063	85WA075001	Athena	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.8938904,-117.6141663
9	86P0064	85WA075002	Athena	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.9533348,-117.5541687
9	86P0078	85WA075016	Athena	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.9538879,-117.5541687
9	40A0952	S1949OR059004	ATHENA	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	45.7961121,-118.4372253
9	40A1026	S1951WA071004	Athena	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.0663872,-118.2222214
9	40A1020	S1961WA013003	ATHENA	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	46.2627792,-118.0761108
9	05N0553	S2005WA063001	Athena	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	47.3390889,-117.6998556

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the ATHENA 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 ATHENA 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 ATHENA 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 ATHENA 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 ATHENA 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 ATHENA 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 ATHENA 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 flats position figure.

Soil series sharing subgroup-level classification with ATHENA, 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-2012-05-11-03 | Whitman County - April 1980

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

2. WA-2012-05-11-04 | Whitman County - April 1980

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

3. WA-2012-05-11-10 | Whitman County - April 1980

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

4. WA-2012-05-11-13 | Whitman County - April 1980

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

Map Units

Map units containing ATHENA 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
Athena-Palouse complex, 7 to 25 percent slopes	4	1810	2487249	2ph5v	id057	2013	1:24000
Athena silt loam, moist, 0 to 8 percent slopes	2vz59	306	2487248	2vz59	id057	2013	1:24000
Palouse-Athena complex, 8 to 20 percent slopes	107	6034	79571	2nst	id611	1994	1:24000
Palouse-Athena complex, 2 to 8 percent slopes	106	2839	79570	2nss	id611	1994	1:24000
Athena silt loam, 20 to 45 percent slopes	10	553	79563	2nsk	id611	1994	1:24000
Almota-Athena-Hatwai complex, 45 to 65 percent slopes	5	479	79662	2nwr	id611	1994	1:24000
Athena silt loam, moist, 0 to 8 percent slopes	2vz59	129	2927838	2vz59	id611	1994	1:24000
Athena silt loam, 1 to 7 percent slopes	8B	45371	64582	2569	or667	1984	1:20000
Athena silt loam, 7 to 12 percent slopes	8C	9895	64583	256b	or667	1984	1:20000
Athena silt loam, 8 to 15 percent slopes	2vz5b	262	2651290	2vz5b	wa043	1978	1:24000
Athena silt loam, 0 to 8 percent slopes	2vz58	139	2651289	2vz58	wa043	1978	1:24000
Athena-Lance complex, 15 to 30 percent slopes	2vz5h	44	2651291	2vz5h	wa043	1978	1:24000
Athena silt loam, 8 to 15 percent slopes	2vz5b	9619	621217	2vz5b	wa063	2012	1:24000
Athena-Lance complex, 15 to 30 percent slopes	2vz5h	9235	2947435	2vz5h	wa063	2012	1:24000
Athena silt loam, 0 to 8 percent slopes	2vz58	3053	1856527	2vz58	wa063	2012	1:24000
Athena-Lance complex, 30 to 60 percent slopes	2vz5j	1351	2947434	2vz5j	wa063	2012	1:24000
Athena silt loam, 7 to 25 percent slopes	2vz5d	175794	68590	2vz5d	wa075	1975	1:20000
Athena silt loam, 25 to 40 percent slopes	2vz5f	18467	68489	2vz5f	wa075	1975	1:20000
Athena silt loam, 0 to 8 percent slopes	2vz58	11028	2651360	2vz58	wa075	1975	1:20000
Athena silt loam, moist, 7 to 25 percent slopes	2vz5c	10788	2947431	2vz5c	wa075	1975	1:20000
Athena silt loam, moist, 0 to 8 percent slopes	2vz59	4705	68579	2vz59	wa075	1975	1:20000
Athena silt loam, 40 to 55 percent slopes	2vz5g	3369	2947433	2vz5g	wa075	1975	1:20000
Athena silt loam, 7 to 25 percent slopes, eroded	10	1195	68478	297z	wa075	1975	1:20000
Athena-Lance complex, 15 to 30 percent slopes	2vz5h	458	2651362	2vz5h	wa075	1975	1:20000
Athena silt loam, 8 to 15 percent slopes	2vz5b	303	2651361	2vz5b	wa075	1975	1:20000
Athena silt loam, 25 to 40 percent slopes, eroded	12	15	68500	298p	wa075	1975	1:20000
Athena silt loam, 8 to 25 percent slopes	AtD	49676	69636	2bgb	wa613	1967	1:20000
Athena silt loam, 25 to 40 percent slopes	AtE	17119	69638	2bgd	wa613	1967	1:20000
Athena silt loam, 0 to 8 percent slopes	AtB	6783	69635	2bg9	wa613	1967	1:20000
Athena silt loam, 25 to 40 percent slopes, severely eroded	AtE3	3923	69639	2bgf	wa613	1967	1:20000
Athena silt loam, 40 to 55 percent slopes	AtF	3766	69640	2bgg	wa613	1967	1:20000
Athena silt loam, 8 to 25 percent slopes, severely eroded	AtD3	1158	69637	2bgc	wa613	1967	1:20000
Athena silt loam, 40 to 55 percent slopes, severely eroded	AtF3	829	69641	2bgh	wa613	1967	1:20000
Athena silt loam, moderately shallow, 0 to 15 percent slopes	AuC	518	69642	2bgj	wa613	1967	1:20000
Athena silt loam, moderately shallow, 25 to 40 percent slopes, eroded	AuE2	499	69644	2bgl	wa613	1967	1:20000
Athena silt loam, moderately shallow, 15 to 25 percent slopes, eroded	AuD2	417	69643	2bgk	wa613	1967	1:20000
Athena silt loam, 7 to 25 percent slopes	AoD	24626	69782	2bm1	wa623	1970	1:20000
Athena-Spofford silt loams, 0 to 15 percent slopes	AtC	20839	69793	2bmd	wa623	1970	1:20000
Athena silt loam, calcareous substratum, 7 to 25 percent slopes	ApD	15828	69786	2bm5	wa623	1970	1:20000
Athena silt loam, 0 to 7 percent slopes	AoB	13090	69781	2bm0	wa623	1970	1:20000
Athena-Lance silt loams, 10 to 40 percent slopes, eroded	AsE2	12180	69792	2bmc	wa623	1970	1:20000
Athena silt loam, 25 to 40 percent slopes	AoE	8202	69783	2bm2	wa623	1970	1:20000
Athena silt loam, calcareous substratum, 0 to 7 percent slopes	ApB	7651	69785	2bm4	wa623	1970	1:20000
Athena silt loam, moderately shallow, 7 to 25 percent slopes	ArD	4919	69790	2bm9	wa623	1970	1:20000
Athena silt loam, 40 to 55 percent slopes	AoF	3442	69784	2bm3	wa623	1970	1:20000
Athena silt loam, moderately shallow, 25 to 40 percent slopes	ArE	2788	69791	2bmb	wa623	1970	1:20000
Athena silt loam, calcareous substratum, 25 to 40 percent slopes	ApE	2620	69787	2bm6	wa623	1970	1:20000
Athena-Spofford silt loams, 15 to 30 percent slopes	AtD	2491	69794	2bmf	wa623	1970	1:20000
Athena silt loam, calcareous substratum, 40 to 65 percent slopes	ApF	1751	69788	2bm7	wa623	1970	1:20000
Athena silt loam, moderately shallow, 0 to 7 percent slopes	ArB	1498	69789	2bm8	wa623	1970	1:20000
Athena silt loam, 8 to 30 percent slopes	AtD	24517	71287	2d5l	wa671	1961	1:31680
Athena silt loam, 30 to 45 percent slopes	AtE	3904	71289	2d5n	wa671	1961	1:31680
Athena silt loam, 0 to 8 percent slopes	AtB	3775	71286	2d5k	wa671	1961	1:31680
Athena silt loam, 30 to 45 percent slopes, eroded	AtE2	427	71290	2d5p	wa671	1961	1:31680
Athena silt loam, 8 to 30 percent slopes, eroded	AtD2	248	71288	2d5m	wa671	1961	1:31680

Map of Series Extent

Approximate geographic distribution of the ATHENA 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).