noaa-loess-5603
Kohfeld and Harrison 2001 Mid-continental USA Gridded Maps of Loess Thickness
Kohfeld, K.E.; Harrison, S.P.; Muhs, D.R.
Kohfeld and Harrison 2001 Mid-continental USA Gridded Maps of Loess Thickness
2001-06-18
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/5603
Investigator
K.E.
Kohfeld
Investigator
S.P.
Harrison
Investigator
D.R.
Muhs
earth science
paleoclimate
loess
longitude,null,null,degree east,null,loess,null,null,N,null
earth science
paleoclimate
loess
notes,null,null,null,null,loess,null,null,C,map name
earth science
paleoclimate
loess
latitude,null,null,degree north,null,loess,null,null,N,null
earth science
paleoclimate
loess
layer thickness,loess,null,meter,null,loess,null,null,N,null
earth science
paleoclimate
loess
geoscientificInformation
34000 cal yr BP
10000 cal yr BP
Complete
28
48
-102
-84
Continent
North America
Peoria Loess>LATITUDE >LONGITUDE
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Records of past environment derived from Loess and Eolian dust (silt-sized material deposited on the Earth surface by the surface winds. Parameter keywords describe what was measured in this data set. Additional summary information can be found in the abstracts of papers listed in the data set citations.
STUDY NOTES: Late Wisconsin (Peoria) Loess of the mid-continental USA represents the
thickest deposition of last glacial loess, ranging from trace amounts
(< 1 m) to accumulations as thick as 40-50 m in parts of western Nebraska
and western Iowa. Accumulation of Peoria Loess coincides primarily with
the last glacial period, although accumulation was not synchronous across
the entire mid-continental region. The maximum-limiting of Peoria Loess
range from approximately 30-34 ka (organic matter from the uppermost
Roxana Silt and Gilman Canyon Formation) to 20-22 ka in other regions.
The actual time period of deposition varies from region to region
(see e.g. Muhs and Bettis, 2000; Bettis et al., submitted).
Although a map of loess thickness across the mid-continental USA has
been made (Thorp and Smith, 1952; republished in generalized form by
Ruhe, 1983), this compilation is now more than 50 years old and has
never been assembled as a digital data set, allowing for a
representation of loess as a geomorphological feature that can be
directly compared with regional model simulations over North America.
The purpose of digitizing loess thickness is to provide this information
as part of the DIRTMAP data base (Kohfeld and Harrison, 2001),
to demonstrate spatial changes in accumulation across the
mid-continental USA, and to make it available to the geomorphology,
Quaternary and earth system modeling communities.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/loess/peoria/table1_codes.xls
Excel Data File; Peoria Loess Thickness Codes
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/loess/peoria/table2_data.txt
Data File; Peoria Loess Thickness Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/loess/peoria/table1_codes.txt
Data File; Peoria Loess Thickness Codes
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/loess/peoria/table2_data.xls
Excel Data File; Peoria Loess Thickness Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/loess/peoria/readme_kohfeld2001.txt
More Information ; Peoria Loess Readme File
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11