Soil Data Explorer - THURMONT

Official Series Description

Lab Data Summary

Aggregate lab data for the THURMONT soil series. This aggregation is based on all pedons with a current taxon name of THURMONT, 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 THURMONT 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
130B	00P1345	S2000NC021001	Thurmont	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	35.7561111,-82.3925018

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the THURMONT 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 THURMONT series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-10-24), parsed OSD records (updated 2024-10-23) and snapshot of SC database (updated 2024-10-23).

Select annual climate data summaries for the THURMONT 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 2024-10-23).

Geomorphic description summaries for the THURMONT 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 2024-10-23).

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

Competing Series

Soil series competing with THURMONT share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2024-10-23) and snapshot of the SC database (updated 2024-10-23).

Select annual climate data summaries for the THURMONT 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 2024-10-23).

Geomorphic description summaries for the THURMONT 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 2024-10-23).

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

Soil series sharing subgroup-level classification with THURMONT, 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 2024-10-23).

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. MD-2010-09-07-01 | Frederick County - 2002

   Relationship of soils, topography, and underlying material in the Bagtown-Stumptown-Edgemont general soil map unit (Soil Survey of Frederick County, Maryland; 2002).

2. MD-2012-02-03-16 | Frederick County - 2002

   Relationship of soils, topography, and underlying material in the Bagtown-Stumptown-Edgemont general soil map unit (Soil Survey of Frederick County, Maryland; 2002).

Map Units

Map units containing THURMONT 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
Thurmont and Braddock fine sandy loams, severely eroded sloping phases	TaD3	280	124380	45f8	ga117	1957	1:20000
Thurmont and Braddock fine sandy loams, very gently sloping phases	TaB	245	124378	45f6	ga117	1957	1:20000
Thurmont and Braddock fine sandy loams, eroded very gently sloping phases	TaB2	170	124379	45f7	ga117	1957	1:20000
Thurmont loamy sand, 2 to 6 percent slopes	TkB	1860	124741	45sx	ga199	1960	1:15840
Thurmont loamy sand, 6 to 10 percent slopes	TkC	1760	124742	45sy	ga199	1960	1:15840
Thurmont loamy sand, 10 to 15 percent slopes	TkD	690	124743	45sz	ga199	1960	1:15840
Thurmont fine sandy loam, 6 to 12 percent slopes	ThC	10030	531789	kvch	ga637	1990	1:20000
Thurmont fine sandy loam, 12 to 25 percent slopes	ThE	3660	531790	kvcj	ga637	1990	1:20000
Thurmont fine sandy loam, 2 to 6 percent slopes	ThB	1810	531788	kvcg	ga637	1990	1:20000
Thurmont gravelly loam, 3 to 8 percent slopes, very stony	ThB	601	535077	kysk	md021	2001	1:12000
Thurmont gravelly loam, 3 to 8 percent slopes	TaB	531	534876	kyl2	md021	2001	1:12000
Thurmont gravelly loam, 8 to 15 percent slopes	TaC	342	534878	kyl4	md021	2001	1:12000
Thurmont gravelly loam, 8 to 15 percent slopes	ThC	1524	534696	kyd8	md043	1998	1:12000
Braddock-Thurmont gravelly loams, 3 to 8 percent slopes	BrB	1350	534171	kxvb	md043	1998	1:12000
Braddock-Thurmont gravelly loams, 8 to 15 percent slopes	BrC	1308	534173	kxvd	md043	1998	1:12000
Thurmont gravelly loam, 3 to 8 percent slopes	ThB	1205	534694	kyd6	md043	1998	1:12000
Thurmont gravelly loam, 15 to 25 percent slopes	ThD	354	534698	kydb	md043	1998	1:12000
Braddock-Thurmont gravelly loams, 15 to 25 percent slopes	BrD	154	534175	kxvg	md043	1998	1:12000
Thurmont-Dillard complex, 8 to 15 percent slopes	ThC	8682	2423170	2mbhs	nc039	2009	1:12000
Thurmont-Dillard complex, 2 to 8 percent slopes	ThB	5244	2423169	2mbhr	nc039	2009	1:12000
Thurmont-Dillard complex, 2 to 8 percent slopes	ThB	1843	1912787	226dt	nc075	2007	1:12000
Thurmont loam, 8 to 15 percent slopes	ThC	1138	756641	tdbs	nc605	2007	1:12000
Thurmont loam, 15 to 30 percent slopes	ThD	413	1910256	223s5	nc605	2007	1:12000
Thurmont-Dillard complex, 2 to 8 percent slopes	TdB	223	1912625	2267l	nc605	2007	1:12000
Thurmont gravelly loam, 8 to 25 percent slopes, very stony	ToD	1351	545203	l9b6	pa055	1999	1:24000
Thurmont gravelly loam, 3 to 8 percent slopes, stony	ThB	354	545201	l9b4	pa055	1999	1:24000
Thurmont gravelly loam, 8 to 15 percent slopes, stony	ThC	182	545202	l9b5	pa055	1999	1:24000
Thurmont loam, 8 to 15 percent slopes, stony	ThC	132	1414574	1jgzf	tn640	2007	1:24000
Thurmont-Dillard complex, 2 to 8 percent slopes, stony	ThB	10	1414575	1jgzg	tn640	2007	1:24000
Thurmont loam, 7 to 15 percent slopes	81C	2560	516476	kbfj	va003	1981	1:15840
Thurmont loam, 2 to 7 percent slopes	81B	1960	516475	kbfh	va003	1981	1:15840
Thurmont very stony loam, 7 to 15 percent slopes	82C	1060	516478	kbfl	va003	1981	1:15840
Thurmont very stony loam, 15 to 25 percent slopes	82D	790	516479	kbfm	va003	1981	1:15840
Thurmont loam, 15 to 25 percent slopes	81D	460	516477	kbfk	va003	1981	1:15840
Thurmont fine sandy loam, 7 to 15 percent slopes	31C	2395	135973	4kh7	va019	1985	1:24000
Thurmont fine sandy loam, 2 to 7 percent slopes	31B	711	135972	4kh6	va019	1985	1:24000
Thurmont fine sandy loam, 15 to 25 percent slopes	31D	327	135974	4kh8	va019	1985	1:24000
Thurmont loam, 15 to 30 percent slopes, very stony	52D	557	519123	kf5x	va023	1990	1:20000
Thurmont loam, 2 to 15 percent slopes, very stony	52C	433	519122	kf5w	va023	1990	1:20000
Thurmont gravelly loam, 3 to 8 percent slopes	50B	297	516569	kbjj	va043	1980	1:15840
Thurmont loam, 3 to 8 percent slopes	49B	193	516568	kbjh	va043	1980	1:15840
Thurmont-Wintergreen complex, 8 to 15 percent slopes	36C	2278	582042	mjnk	va067	2004	1:24000
Thurmont-Wintergreen complex, 2 to 8 percent slopes	36B	248	582041	mjnj	va067	2004	1:24000
Thurmont-Urban land-Wintergreen complex, 8 to 15 percent slopes	35C	218	582040	mjnh	va067	2004	1:24000
Thurmont-Wintergreen complex, 15 to 25 percent slopes	36D	172	582043	mjnl	va067	2004	1:24000
Thurmont very stony loam, 15 to 25 percent slopes	TvD	1284	516909	kbwh	va079	1983	1:15840
Thurmont loam, 7 to 15 percent slopes	ThC	653	516907	kbwf	va079	1983	1:15840
Thurmont loam, 15 to 25 percent slopes	ThD	238	516908	kbwg	va079	1983	1:15840
Braddock-Thurmont loams, 2 to 7 percent slopes	BcB	522	516925	kbx0	va113	1967	1:15840
Braddock-Thurmont loams, 7 to 15 percent slopes	BcC	379	516926	kbx1	va113	1967	1:15840
Braddock-Thurmont loams, 15 to 25 percent slopes, eroded	BcD2	179	516927	kbx2	va113	1967	1:15840
Thurmont loam, 7 to 15 percent slopes	46C	875	137108	4lnv	va125	1992	1:24000
Thurmont loam, 2 to 7 percent slopes	46B	625	137106	4lns	va125	1992	1:24000
Thurmont loam, 2 to 7 percent slopes, very stony	47B	585	137112	4lnz	va125	1992	1:24000
Thurmont loam, 15 to 25 percent slopes, very stony	47D	502	137114	4lp1	va125	1992	1:24000
Thurmont loam, 7 to 15 percent slopes, very stony	47C	390	137113	4lp0	va125	1992	1:24000
Thurmont loam, 15 to 25 percent slopes	46D	259	137110	4lnx	va125	1992	1:24000
Thurmont fine sandy loam, 7 to 15 percent slopes	46C	4831	517281	kc8h	va139	1995	1:20000
Thurmont fine sandy loam, 15 to 25 percent slopes	46D	3972	517282	kc8j	va139	1995	1:20000
Thurmont fine sandy loam, 2 to 7 percent slopes	46B	2456	517280	kc8g	va139	1995	1:20000
Thurmont fine sandy loam, 8 to 15 percent slopes	43C	3259	1474014	1lgtv	va141	2008	1:24000
Thurmont fine sandy loam, 2 to 8 percent slopes	43B	2163	1474013	1lgtt	va141	2008	1:24000
Thurmont fine sandy loam, 15 to 25 percent slopes	43D	788	1474015	1lgtw	va141	2008	1:24000
Thurmont cobbly fine sandy loam, 8 to 15 percent slopes, very stony	44C	343	1474082	1lgx1	va141	2008	1:24000
Thurmont cobbly fine sandy loam, 15 to 25 percent slopes, very stony	44D	173	1474083	1lgx2	va141	2008	1:24000
Unison-Thurmont complex, 7 to 15 percent slopes, very stony	StC	3019	517469	2tmcl	va157	1958	1:20000
Unison-Thurmont complex, 15 to 25 percent slopes, very stony	StD	1296	517470	2tmcm	va157	1958	1:20000
Thurmont sandy loam, 7 to 15 percent slopes	47C	1028	520324	kgfn	va161	1990	1:24000
Thurmont sandy loam, 2 to 7 percent slopes	47B	262	520322	kgfl	va161	1990	1:24000
Thurmont loam, 2 to 15 percent slopes, very stony	33C	6	3174083	2z3fp	va850		1:24000
Thurmont loam, 15 to 30 percent slopes, very stony	33E	1	3174082	2z3fn	va850		1:24000
Thurmont gravelly loam, 15 to 25 percent slopes	ThD	271	1710252	1vdnf	wv037		1:24000
Thurmont gravelly loam, 8 to 15 percent slopes	ThC	214	1710251	1vdnd	wv037		1:24000

Map of Series Extent

Approximate geographic distribution of the THURMONT 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 2024-10-30).