Soil Data Explorer - OSSIAN

Official Series Description

Lab Data Summary

Aggregate lab data for the OSSIAN soil series. This aggregation is based on all pedons with a current taxon name of OSSIAN, 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 OSSIAN 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
104	X65487E-1-0	S1962IA065021	Ossian	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	42.9338153,-92.0627592
104	X53-489-1	S1984IA105010	Ossian	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	42.1811495,-91.2669696
105	X191489-1-0	S1959IA191036	Ossian	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	43.1523399,-91.7434181
105	X65487-1-0	S1966IA065011	Ossian	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	43.0176055,-91.7595419
105	X65487-1-0B	S1966IA065111	Ossian	1	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	42.95618,-91.8091
105	UMN2067	S1975MN055046	Ossian	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	43.8285078,-91.5410073
105	UMN2076	S1975MN055055	Ossian	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	43.8290621,-91.5456559
105	UMN2086	S1975MN055064	Ossian	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	43.7325351,-91.3783686
105	X3-489-1	S1987IA005005	Ossian	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	43.2308433,-91.5760531
95B	40A1531	S1954WI027022	Ossian	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	43.2077789,-88.9980545

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the OSSIAN 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 OSSIAN 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 OSSIAN 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 OSSIAN 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 OSSIAN 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 OSSIAN 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 OSSIAN 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 OSSIAN, 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 OSSIAN 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
Lawson-Ossian complex, 0 to 4 percent slopes	1489B	19	2479294	2p6x7	ia037	1989	1:15840
Ossian silt loam, 0 to 2 percent slopes	489	1245	404277	fkp6	ia043	1979	1:15840
Ossian silt loam, 0 to 2 percent slopes	489	1916	405058	flhd	ia055	1984	1:15840
Ossian silt loam, 0 to 2 percent slopes	489	196	405787	fm7x	ia065	1975	1:15840
Ossian silt loam, 0 to 2 percent slopes	489	4787	408175	fpqy	ia105	1988	1:15840
Ossian silt loam, 0 to 2 percent slopes	489	1479	409337	fqyf	ia123	1971	1:15840
Lawson-Ossian complex, 0 to 4 percent slopes	1489B	9786	1382543	1hdn5	ia191	2005	1:12000
Ossian silt loam, 0 to 3 percent slopes, occasionally flooded	489	2426	766671	tqsb	ia191	2005	1:12000
Joy-Ossian, occasionally flooded, complex, 1 to 5 percent slopes	N514B	117	1443756	1kgbs	mn039	2005	1:12000
Joy-Ossian, occasionally flooded, complex, 1 to 5 percent slopes	N514B	8912	1675255	1t77h	mn049	2007	1:12000
Joy-Ossian, occasionally flooded, complex, 1 to 5 percent slopes	N514B	336	2230589	2dw3h	mn157	2008	1:12000
Ossian silt loam, 0 to 3 percent slopes	OsA	15504	423321	g6hj	wi021	1972	1:15840
Ossian silt loam, occasionally flooded	Ot	9642	425342	g8lq	wi045	1969	1:12000
Ossian silt loam	Os	5014	423734	g6xv	wi047	1974	1:20000
Ossian silt loam	Os	1240	423187	g6c6	wi111	1977	1:15840
Ossian silt loam	Os	4459	422817	g5z8	wi139	1977	1:20000

Map of Series Extent

Approximate geographic distribution of the OSSIAN 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).