Soil Data Explorer - OMULGA

Official Series Description

Lab Data Summary

Aggregate lab data for the OMULGA soil series. This aggregation is based on all pedons with a current taxon name of OMULGA, 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 OMULGA 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
124	SC-010	80oh145038	Omulga	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.9194528,-82.8867667
126	66PA125004	1966PA125004	Omulga	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.2277778,-80.1416667
n/a	JK-013	1978-OH079-013	Omulga	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	PK-006	1980-OH131-006	Omulga	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	PK-007	1980-OH131-007	Omulga	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	SC-008	1980-OH145-008	Omulga	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	NB-021	1982-OH121-021	Omulga	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the OMULGA 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 OMULGA 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 OMULGA 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 OMULGA 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).

Competing Series

Soil series competing with OMULGA 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 OMULGA 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 OMULGA 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 OMULGA, 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. OH-2010-09-29-25 | Vinton County - 2004

   Typical pattern of soils and parent material in the Omulga-Philo general soil map unit (Soil Survey of Vinton County, Ohio; 2004).

2. WV-2010-11-08-07 | Jackson and Mason Counties -

   The dominant upland and high terrace soils in the Upper Flats area of northern Mason County. These high terrace soils have their origins associated with the ancient Teays River system (Soil Survey of Jackson and Mason Counties, West Virginia).

Map Units

Map units containing OMULGA 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
Omulga silt loam, 1 to 6 percent slopes	OmB	2109	170105	5q08	oh001	1987	1:15840
Omulga silt loam, 6 to 15 percent slopes, eroded	OmC2	461	170106	5q09	oh001	1987	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	5142	2441851	2myyd	oh009	1981	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	5094	2441852	2myyf	oh009	1981	1:15840
Omulga silt loam, mixed substratum, 2 to 6 percent slopes	Omm1B1	857	2450409	2n7vg	oh013	1978	1:15840
Omulga silt loam, mixed substratum, 6 to 12 percent slopes	Omm1C1	805	2450405	2n7vb	oh013	1978	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	81	2479214	2p6tn	oh013	1978	1:15840
Omulga silt loam, 6 to 12 percent slopes	OmC	5	1670696	1t2hf	oh019	1981	1:15840
Omulga silt loam, 2 to 6 percent slopes	OmB	1	1670695	1t2hd	oh019	1981	1:15840
Omulga silt loam, 2 to 6 percent slopes	OmB	1088	298812	b0y3	oh029	2005	1:12000
Omulga silt loam, 6 to 12 percent slopes	OmC	1032	298813	b0y4	oh029	2005	1:12000
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	6572	2450438	2n7wd	oh053	1988	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	2480	2450439	2n7wf	oh053	1988	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	2483	2450617	2n825	oh059	1998	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	1683	2450616	2n824	oh059	1998	1:15840
Omulga silt loam, mixed substratum, 6 to 12 percent slopes	Omm1C1	187	2450826	2n88x	oh067	1993	1:15840
Omulga silt loam, mixed substratum, 2 to 6 percent slopes	Omm1B1	69	2450825	2n88w	oh067	1993	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	648	2450619	2n827	oh073	1986	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	468	2450620	2n828	oh073	1986	1:15840
Omulga silt loam, 12 to 18 percent slopes, eroded	Omu1D2	137	2450663	2n83n	oh073	1986	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	12601	2451018	2n8h3	oh079	1981	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	10716	2451017	2n8h2	oh079	1981	1:15840
Omulga silt loam, 0 to 2 percent slopes	Omu1A1	1879	2451021	2n8h6	oh079	1981	1:15840
Omulga silt loam, mixed substratum, 2 to 6 percent slopes	Omm1B1	993	2451090	2n8kf	oh081	1987	1:15840
Omulga silt loam, mixed substratum, 6 to 12 percent slopes	Omm1C1	687	2451091	2n8kg	oh081	1987	1:15840
Urban land-Omulga complex, 3 to 15 percent slopes	UvC	684	536125	kzwc	oh081	1987	1:15840
Omulga silt loam, 6 to 15 percent slopes	OlC	20	1652952	1sh11	oh081	1987	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	657	2451103	2n8kv	oh087	1989	1:15840
Omulga silt loam, 6 to 15 percent slopes, eroded	OmC2	174	536164	kzxm	oh087	1989	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	5095	2451282	2n8rm	oh105	1991	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	4179	2451281	2n8rl	oh105	1991	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	365	2479222	2p6tx	oh111	1968	1:15840
Omulga silt loam, 12 to 18 percent slopes, eroded	Omu1D2	190	2396022	2lf81	oh111	1968	1:15840
Omulga silt loam, mixed substratum, 6 to 12 percent slopes	Omm1C1	186	2396024	2lf83	oh111	1968	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	154	2396021	2lf80	oh111	1968	1:15840
Omulga silt loam, mixed substratum, 2 to 6 percent slopes	Omm1B1	82	2396023	2lf82	oh111	1968	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	81	2452491	2nb0m	oh115	1992	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	44	2452492	2nb0n	oh115	1992	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	1647	2452526	2nb1r	oh119	1989	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	1028	2452525	2nb1q	oh119	1989	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	1373	2452552	2nb2l	oh121	1986	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	1231	2452553	2nb2m	oh121	1986	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	14724	2452602	2nb46	oh131	1984	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	4019	2452603	2nb47	oh131	1984	1:15840
Omulga silt loam, 0 to 2 percent slopes	Omu1A1	3376	2452601	2nb45	oh131	1984	1:15840
Urbanland-Omulga complex, 0 to 6 percent slopes	UoA	1578	537741	l1kh	oh131	1984	1:15840
Omulga silt loam, 6 to 12 percent slopes, eroded	OkC2	7	1689013	1tpk9	oh131	1984	1:15840
Omulga silt loam, 2 to 6 percent slopes	OmB	1955	170931	5qvx	oh141	1997	1:15840
Omulga silt loam, 6 to 12 percent slopes, eroded	OmC2	550	170932	5qvy	oh141	1997	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	12159	2452668	2nb6b	oh145	1984	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	5475	2452669	2nb6c	oh145	1984	1:15840
Omulga-Urban land complex, 1 to 8 percent slopes	OpB	1637	537279	l12l	oh145	1984	1:15840
Omulga-Urban land complex, 8 to 15 percent slopes	OpC	688	537280	l12m	oh145	1984	1:15840
Omulga silt loam, 6 to 15 percent slopes, eroded	OsC2	28	1460811	1l12y	oh145	1984	1:15840
Omulga silt loam, 1 to 6 percent slopes	OsB	20	1460823	1l13b	oh145	1984	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	6712	2453364	2nbxs	oh163	1998	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	5565	2453365	2nbxt	oh163	1998	1:15840
Omulga silt loam, 6 to 12 percent slopes, eroded	OnC2	10	1482105	1lr7v	oh163	1998	1:15840
Omulga silt loam, 0 to 2 percent slopes	Omu1A1	4	2453368	2nbxx	oh163	1998	1:15840
Omulga silt loam, 2 to 6 percent slopes	Omu1B1	4414	2396103	2lfbn	oh167	1973	1:15840
Omulga-Vincent silt loams, 6 to 12 percent slopes	OmV1C1	4385	2396108	2lfbt	oh167	1973	1:15840
Omulga silt loam, 6 to 12 percent slopes	Omu1C1	2779	2396104	2lfbp	oh167	1973	1:15840
Omulga-Vincent silt loams, 2 to 6 percent slopes	OmV1B1	1985	2396107	2lfbs	oh167	1973	1:15840
Urban land-Omulga complex, 3 to 15 percent slopes	UvC	558	1720645	1vrgp	wv051	2007	1:12000
Omulga silt loam, 8 to 15 percent slopes	OmC	247	1720642	1vrgl	wv051	2007	1:12000
Omulga silt loam, 3 to 8 percent slopes	OmB	164	1720644	1vrgn	wv051	2007	1:12000
Omulga silt loam, 3 to 8 percent slopes	OmB	5035	1384155	1hgb5	wv600	2005	1:24000
Omulga silt loam, 0 to 3 percent slopes	OmA	402	1384154	1hgb4	wv600	2005	1:24000

Map of Series Extent

Approximate geographic distribution of the OMULGA 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).