Soil Data Explorer - NAPIER

Official Series Description

Lab Data Summary

Aggregate lab data for the NAPIER soil series. This aggregation is based on all pedons with a current taxon name of NAPIER, 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 NAPIER were used in the calculation. Source: KSSL snapshot (updated 2020-03-18). 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
107B	M9108759	1991MO087059m	Napier	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.086967,-95.2069303
107B	M0408701	2004MO087001	NAPIER	4	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.9255556,-95.0997222
107B	40A1440	S1958IA085006	NAPIER	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	41.7344437,-95.7883301
107B	40A1441	S1958IA085009	Napier	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	41.7458344,-95.7886124
107B	80P0116	S1979MO095004	Napier	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.1333694,-94.1835632
107B	96P0051	S1995IA047003	Napier	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	42.0658073,-95.6683731
107B	97P0031	S1996IA193027	Napier	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	42.3711662,-96.1333084

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the NAPIER 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 NAPIER series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-06) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the NAPIER 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 NAPIER 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 NAPIER share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-06) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the NAPIER 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 NAPIER 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 NAPIER, 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. IA-2010-09-02-26 | Monona County - 2003

   Typical pattern of soils and parent material in the Ida-Castana-Hamburg association (Soil Survey of Monona County, Iowa; 2003).

2. IA-2010-09-02-27 | Monona County - 2003

   Typical pattern of soils and parent material in the Monona-Ida-Napier association (Soil Survey of Monona County, Iowa; 2003).

3. IA-2010-09-03-07 | Woodbury - 2006

   Typical pattern of soils and underlying material in the Ida-Napier-Monona association (Soil Survey of Woodbury County, Iowa; 2006).

4. IA-2010-09-09-14 | Crawford County - 2007

   Typical pattern of soils and parent material in the Monona-Ida-Napier association (Soil Survey of Crawford County, Iowa; 2007).

5. IA-2010-09-09-17 | Crawford County - 2007

   A cross section showing the relationship between soils and parent material in the western part of Crawford County (Soil Survey of Crawford County, Iowa; 2007).

6. IA-2010-09-24-01 | Pottawattamie County - 1998

   Typical pattern of soils and parent material in the deep Loess region of western Iowa (Soil Survey of Pottawattamie County, Iowa; 1998).

7. MO-2010-09-08-04 | Holt County - 1997

   Typical pattern of soils and parent material in the Monona-Timula-Contrary association (Soil Survey of Holt County, Missouri; 1997).

8. MO-2012-02-06-02 | Atchison County - May 1994

   Typical pattern of soils and parent material in the Dockery-Napier association (Soil Survey of Atchison County, Missouri; May 1994).

9. MO-2012-02-06-03 | Atchison County - May 1994

   Typical pattern of soils and parent material in the Monona-Ida association (Soil Survey of Atchison County, Missouri; May 1994).

Map Units

Map units containing NAPIER 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
Napier-Kennebec-Colo complex, 0 to 5 percent slopes	17B	7745	399796	2wnyl	ia047	2004	1:12000
Napier silt loam, 2 to 5 percent slopes	12B	7490	399791	2sy76	ia047	2004	1:12000
Napier silt loam, 5 to 9 percent slopes	12C	7299	399792	2sy78	ia047	2004	1:12000
Napier-Gullied land complex, 5 to 14 percent slopes	717D	956	399849	2sy7d	ia047	2004	1:12000
Napier silt loam, 2 to 5 percent slopes	12B	15139	406091	2sy76	ia071	1968	1:20000
Napier-Gullied land complex, 2 to 10 percent slopes	717C	4513	406165	2sy7c	ia071	1968	1:20000
Napier silt loam, 5 to 9 percent slopes	12C	972	406092	2sy78	ia071	1968	1:20000
Napier silt loam, 5 to 9 percent slopes	12C	35546	406728	2sy78	ia085	1971	1:15840
Napier silt loam, 2 to 5 percent slopes	12B	32867	406726	2sy76	ia085	1971	1:15840
Napier silt loam, 9 to 14 percent slopes	12D	7343	406729	2sy79	ia085	1971	1:15840
Napier-Nodaway-Colo complex, 2 to 5 percent slopes	17B	2702	406739	2y6b1	ia085	1971	1:15840
Napier silt loam, 2 to 5 percent slopes, overwash	12B+	1764	406727	2sy77	ia085	1971	1:15840
Napier-Gullied land complex, 2 to 10 percent slopes	717C	778	406785	2sy7c	ia085	1971	1:15840
Napier silt loam, 2 to 5 percent slopes	12B	22629	409532	2sy76	ia129	1979	1:15840
Napier-Gullied land complex, 2 to 10 percent slopes	717	3621	409592	2sy7c	ia129	1979	1:15840
Napier silt loam, 5 to 9 percent slopes	12C	1576	409533	2sy78	ia129	1979	1:15840
Napier silt loam, 5 to 9 percent slopes	12C	34956	447312	2sy78	ia133	1994	1:12000
Napier silt loam, 9 to 14 percent slopes	12D	16938	447313	2sy79	ia133	1994	1:12000
Napier silt loam, 2 to 5 percent slopes	12B	8997	447311	2sy76	ia133	1994	1:12000
Napier-Kennebec-Colo complex, 0 to 5 percent slopes	17B	2480	447314	2wnyl	ia133	1994	1:12000
Napier-Gullied land complex, 5 to 14 percent slopes	717D	1867	447389	2sy7d	ia133	1994	1:12000
Napier silt loam, 5 to 9 percent slopes	12C	6444	410319	2sy78	ia149	1972	1:20000
Napier-Castana silt loams, 9 to 14 percent slopes	170D	4991	410325	2xbln	ia149	1972	1:20000
Napier-Gullied land complex, 2 to 10 percent slopes	717C	817	410357	2sy7c	ia149	1972	1:20000
Napier silt loam, 2 to 5 percent slopes	12B	43356	410438	2sy76	ia155	1986	1:15840
Napier silt loam, 5 to 9 percent slopes	12C	13542	410439	2sy78	ia155	1986	1:15840
Napier silt loam, 9 to 14 percent slopes	12D	1311	410440	2sy79	ia155	1986	1:15840
Napier-Gullied land complex, 2 to 10 percent slopes	717C	543	410512	2sy7c	ia155	1986	1:15840
Napier-Urban land complex, 2 to 5 percent slopes	4012B	530	410483	2sy7g	ia155	1986	1:15840
Napier silt loam, 2 to 5 percent slopes	12B	620	626719	2sy76	ia165	2005	1:12000
Napier silt loam, 5 to 9 percent slopes	12C	295	626721	2sy78	ia165	2005	1:12000
Napier silt loam, 5 to 9 percent slopes	12C	29846	401837	2sy78	ia193	2003	1:12000
Napier silt loam, 2 to 5 percent slopes	12B	10375	401836	2sy76	ia193	2003	1:12000
Napier-Rawles complex, 2 to 5 percent slopes	47B	9602	401924	fh79	ia193	2003	1:12000
Napier-Castana silt loams, 9 to 20 percent slopes	170E	7046	741625	2xblp	ia193	2003	1:12000
Napier-Gullied land complex, 5 to 14 percent slopes	717D	2919	401959	2sy7d	ia193	2003	1:12000
Napier-Urban land complex, 5 to 9 percent slopes	4012C	2115	402133	2sy7h	ia193	2003	1:12000
Napier-Urban land complex, 2 to 5 percent slopes	4012B	984	401917	2sy7g	ia193	2003	1:12000
Napier-Castana-Urban land complex, 9 to 14 percent slopes	4170D	228	402135	2xblq	ia193	2003	1:12000
Napier-Kennebec-Colo complex, 0 to 5 percent slopes	17B	91	402131	2wnyl	ia193	2003	1:12000
Napier silt loam, 2 to 5 percent slopes	13560	7310	2528427	2sy76	mo005	1988	1:24000
Napier-Gullied land complex, 5 to 14 percent slopes	13628	3208	2671844	2qhz6	mo005	1988	1:24000
Gullied land-Napier complex, 1 to 5 percent slopes	10168	1511	902692	2y6b0	mo005	1988	1:24000
Napier-Gullied land complex, 5 to 14 percent slopes	13628	7643	2671845	2qhz6	mo087	1992	1:24000
Napier silt loam, 2 to 5 percent slopes	13560	2658	2528426	2sy76	mo087	1992	1:24000
Motark-Napier silt loams, 1 to 7 percent slopes	13555	1492	902767	z9dj	mo087	1992	1:24000
Napier-Gullied land complex, 1 to 7 percent slopes	13562	687	902771	2sy7b	mo087	1992	1:24000
Napier silt loam, 2 to 5 percent slopes	13561	914	887144	2sy76	mo089	1975	1:24000
Napier silt loam, 0 to 3 percent slopes	12503	1923	886672	yrnb	mo095	1982	1:24000
Napier-Nodaway-Gullied land complex, 0 to 60 percent slopes	8108	12	2216688	2wnyh	ne021	1978	1:20000
Napier silt loam, 11 to 17 percent slopes	8106	4454	426755	gb29	ne043	1972	1:20000
Napier-Gullied land complex, 2 to 10 percent slopes	8107	1084	426756	2sy7c	ne043	1972	1:20000
Napier-Nodaway-Gullied land complex, 0 to 60 percent slopes	8108	1918	395534	2wnyh	ne177	2000	1:12000
Gullied land-Napier complex, 5 to 60 percent slopes	9932	942	395519	2sy7f	ne177	2000	1:12000

Map of Series Extent

Approximate geographic distribution of the NAPIER 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).