Official Series Description


Lab Data Summary

Aggregate lab data for the MODESTO soil series. This aggregation is based on all pedons with a current taxon name of MODESTO, 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 MODESTO 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 MODESTO 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 MODESTO 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 MODESTO 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 MODESTO 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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Competing Series

Soil series competing with MODESTO 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 MODESTO 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 MODESTO 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 .

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

Soil series sharing subgroup-level classification with MODESTO, 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 MODESTO 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
Modesto loam, 0 to 1 percent slopesMoA3290462649hjf5ca64419591:24000
Modesto clay loam, 0 to 1 percent slopesMmA1161462647hjf3ca64419591:24000
Modesto clay loam, slightly saline-alkali, 0 to 1 percent slopesMnA1031462648hjf4ca64419591:24000
Modesto loam, slightly saline-alkali, 0 to 1 percent slopesMpA496462650hjf6ca64419591:24000
Trigo-Modesto-San Andreas families association, 15 to 70 percent slopes48af2911748hm7gca67619751:24000
Vista-Trigo, granitic substratum-Modesto families complex, 40 to 70 percent slopes320af4542562680hm70ca69620161:24000
Trigo-Modesto-San Andreas families association, 15 to 70 percent slopes48af3992670243hm7gca69620161:24000
Modesto, moderately deep-Trigo families complex, 25 to 75 percent slopes24af242670240hm6qca69620161:24000
Los Osos-Modesto-Chualar families association, 20 to 70 percent slopes2256427465288hm59ca77219811:24000
Modesto-Rincon-Millsholm families association, 20 to 50 percent slopes3142310465298hm5mca77219811:24000
Rincon-Livermore-Modesto families association, 30 to 60 percent slopes4140355465309hm5zca77219811:24000
Modesto-Yorba-Agua Dulce families association, 30 to 60 percent slopes3232039465299hm5nca77219811:24000
Trigo-Modesto families-Badland association, 45 to 90 percent slopes4618246465314hm64ca77219811:24000
Rincon-Modesto-Los Osos families association, 30 to 60 percent slopes4213681465310hm60ca77219811:24000
Modjeska-Modesto families association, 30 to 60 percent slopes3410724465301hm5qca77219811:24000
Lodo-Modesto families complex, 30 to 70 percent slopes828430465384hm8dca77619811:24000
Vista-Trigo, granitic substratum-Modesto families complex, 40 to 70 percent slopes32011970465341hm70ca77619811:24000
Modesto, moderately deep-Trigo families complex, 25 to 75 percent slopes249995465332hm6qca77619811:24000
Trigo-Modesto-San Andreas families association, 15 to 70 percent slopes488330465355hm7gca77619811:24000
Caperton-San Andreas-Modesto families complex, 15 to 60 percent slopes464120465353hm7dca77619811:24000
Calcixerollic Xerochrepts-Calleguas family-Modesto family, moderately deep complex, 30 to 60 percent slopes152935465329hm6mca77619811:24000
Osito-Modesto families association, 30 to 50 percent slopesCmF15660471620htrkca77719811:24000
Modesto-Osito families association, 15 to 30 percent slopesCmE9655471619htrjca77719811:24000
San Andreas-Osito-Modesto families complex, 15 to 50 percent slopesSaEF4650471669htt4ca77719811:24000

Map of Series Extent

Approximate geographic distribution of the MODESTO 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 .