Official Series Description


Lab Data Summary

Aggregate lab data for the TWEEDY soil series. This aggregation is based on all pedons with a current taxon name of TWEEDY, 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 TWEEDY were used in the calculation. Source: KSSL snapshot . Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

There are insufficient data to create the lab data summary figure.


Water Balance

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

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Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the TWEEDY series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot , parsed OSD records and snapshot of SC database .

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Select annual climate data summaries for the TWEEDY series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data .

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Geomorphic description summaries for the TWEEDY 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 .

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

Competing Series

Soil series competing with TWEEDY share the same family level classification in Soil Taxonomy. Source: parsed OSD records and snapshot of the SC database .

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Select annual climate data summaries for the TWEEDY series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data .

Click the image to view it full size.

Geomorphic description summaries for the TWEEDY 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 .

Click the image to view it full size.

Click the image to view it full size.

Click the image to view it full size.

Click the image to view it full size.

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

Soil series sharing subgroup-level classification with TWEEDY, 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 .

Block Diagrams

No block diagrams are available.

Map Units

Map units containing TWEEDY 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
Tweedy-Tunis-Rankor association, 30 to 75 percent slopes29524420467386hpbzca66820071:24000
Tweedy-Walong association, 30 to 50 percent slopes18914882467312hp8lca66820071:24000
Edmundston-Tweedy-Walong association, 30 to 60 percent slopes2949826467385hpbyca66820071:24000
Sesame-Tweedy-Rock outcrop association, 30 to 60 percent slopes2749606467366hpbbca66820071:24000
Tweedy-Strahle association, 40 to 75 percent slopes2878901467379hpbrca66820071:24000
Strahle-Sesame-Tweedy association, 30 to 75 percent slopes2758812467367hpbcca66820071:24000
Tollhouse-Tweedy-Locobill association, 30 to 60 percent slopes2868254467378hpbqca66820071:24000
Tweedy-Tollhouse-Locobill complex, 9 to 30 percent slopes1881905467311hp8kca66820071:24000
Rankor-Edmundston-Tweedy complex, 30 to 60 percent slopes3091484467397hpcbca66820071:24000
Rankor-Edmundston-Tweedy complex, 5 to 30 percent slopes308981467396hpc9ca66820071:24000
Tweedy-Erskine-Alberti association, 30 to 60 percent slopes531451467422hpd4ca66820071:24000
Tweedy-Tollhouse-Locobill-Urban land complex, 0 to 30 percent slopes48821814212941jpz6ca66820071:24000
Tweedy sandy loam, 50 to 75 percent slopes19012247463894hkqbca67019771:24000
Tweedy-Anaverde complex, 30 to 50 percent slopes1913962463895hkqcca67019771:24000
Tweedy-Strahle association, 40 to 75 percent slopes287ne390322181042dg3rca67019771:24000
Tweedy sandy loam, 30 to 50 percent slopes1893007463893hkq9ca67019771:24000
Tweedy-Anaverde complex, 50 to 75 percent slopes1921802463896hkqdca67019771:24000
Edmundston-Tweedy-Walong association, 30 to 60 percent slopes294ne46722181052dg3sca67019771:24000
Tollhouse-Tweedy-Locobill association, 30 to 60 percent slopes286ne21822181032dg3qca67019771:24000
Strahle-Sesame-Tweedy association, 30 to 75 percent slopes275ne20122180992dg3lca67019771:24000
Tweedy-Tunis-Rankor association, 30 to 75 percent slopes295ne332623710402kl85ca76019811:24000
Tollhouse-Tweedy-Locobill association, 30 to 60 percent slopes286ne137623710362kl81ca76019811:24000
Rankor-Edmundston-Tweedy complex, 30 to 60 percent slopes309ne105323715152klrhca76019811:24000
Edmundston-Tweedy-Walong association, 30 to 60 percent slopes294ne83923710392kl84ca76019811:24000
Rankor-Edmundston-Tweedy complex, 5 to 30 percent slopes308ne56923715142klrgca76019811:24000
Tweedy-Erskine-Alberti association, 30 to 60 percent slopes531ne30023715372kls6ca76019811:24000
Sesame-Tweedy-Rock outcrop association, 30 to 60 percent slopes274ne16423710282kl7sca76019811:24000
Tweedy-Walong association, 30 to 50 percent slopes189ne11523710112kl77ca76019811:24000
Tweedy-Tollhouse-Locobill complex, 9 to 30 percent slopes188ne5623710102kl76ca76019811:24000
Tweedy-Abgese families association, 1 to 15 percent slopes.1815634471597htqtca76319841:24000

Map of Series Extent

Approximate geographic distribution of the TWEEDY 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 .