#----------------------------------------------------------------------- 
#                World Data Center for Paleoclimatology, Boulder 
#                                  and 
#                     NOAA Paleoclimatology Program 
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# NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. 
#
# Online_Resource: hurricane.ncdc.noaa.gov/pls/paleox/f?p=519:1:::::P1_STUDY_ID:14734
# Online_Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/paleolimnology/greenland/halfandhalf2013-1a-2l.txt
#
# Original_Source_URL: 
# 
# Description/Documentation lines begin with #
# Data lines have no #
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# Archive: Paleolimnology
#--------------------
# Contribution_Date
#	Date: 2013-07-11
#--------------------
# Title
#	Study_Name:   Liverpool Land east Greenland late Holocene expansion of Istorvet ice cap
#--------------------
# Investigators
#       Investigators: Lowell,T,V.;Hall,B.L.;Kelly,M.A.;Bennike,O.;Lusas,A.R.;Honsaker,W.;Smith,C.A.;Levy,L.B.;Travis,S.;Denton,G.H.
#--------------------
# Description_and_Notes
Description:
Data includes Loss-on-Ignition from two lakes (Half and Half and Snoopy) in Liverpool Land, East Greenland. Raw core information is at the Limnological Research Center(LRC)in Minneapolis, MN as are 1/2 of the archive cores. Working cores are at the University of Cincinnati.
#--------------------
# Publication 
#       Authors: Thomas V. Lowell, Brenda L. Hall, Meredith A. Kelly, Ole Bennike, Amanda R. Lusas, William Honsaker, Colby A. Smith, Laura B. Levy, Scott Travis,George H. Denton 
#       Published_Date_or_Year: 2013
#       Published_Title: Late Holocene expansion of Istorvet ice cap, Liverpool Land, east Greenland
#       Journal_Name: Quaternary Science Reviews
#       Volume: 63
#       Edition:
#       Issue:
#       Pages: 128-140
#       Report_Number: 
#       DOI: 
#       Publication_Place: 
#       Publisher: 
#       ISBN: 
#       Online_Resource:
#       Other_Reference_Details: ISSN 0277-3791
#       Full_Citation:
#       Abstract: The Greenland Ice Sheet is undergoing dynamic changes that will have global implications if they continue into the future. In this regard, an understanding of how the ice sheet responded to past climate changes affords a baseline for anticipating future behavior. Small, independent ice caps adjacent to the Greenland Ice Sheet (hereinafter called “local ice caps”) are sensitive indicators of the response of Greenland ice-marginal zones to climate change. Therefore, we reconstructed late Holocene ice-marginal fluctuations of the local Istorvet ice cap in east Greenland, using radiocarbon dates of subfossil plants, 10Be dates of surface boulders, and analyses of sediment cores from both threshold and control lakes. During the last termination, the Istorvet ice cap had retreated close to its maximum Holocene position by w11,730 cal yr BP. Radiocarbon dates of subfossil plants exposed by recent recession of the ice margin indicate that the Istorvet cap was smaller than at present from AD 200 to AD 1025. Sediments from a threshold lake show no glacial input until the ice cap advanced to within 365 m of its Holocene maximum position bywAD 1150. Thereafter the ice cap remained at or close to this position until at least AD 1660. The timing of this, the most extensive of the Holocene, expansion is similar to that recorded at some glaciers in the Alps and in southern Alaska. However, in contrast to these other regions, the expansion in east Greenland at AD 1150 appears to have been very close to, if not at, a maximum Holocene value. Comparison of the Istorvet ice-cap fluctuations with Holocene glacier extents in Southern Hemisphere middle-to-high latitude locations on the Antarctic Peninsula and in the Andes and the Southern Alps suggests an out-of-phase relationship. If correct, this pattern supports the hypothesis that a bipolar see-saw of oceanic and/or atmospheric circulation during the Holocene produced asynchronous glacier response at some localities in the two polar hemispheres.
#------------------
# Funding_Agency
#       Funding_Agency_Name: National Science Foundation (USA)
#       Grant: ARC 0908081
#------------------
# Site_Information 
#   Site_Name: Half and Half Lake
#   Location: 
#	Region: 
#	Country: Greenland
#	Northernmost_Latitude: 70.972
# 	Southernmost_Latitude: 70.972
# 	Easternmost_Longitude: -22.286
# 	Westernmost_Longitude: -22.286
# 	Elevation: 100
#------------------
# Data_Collection
#	Collection_Name: HH-1A-2L
#	Earliest_Year: 
#	Most_Recent_Year: 
#	Time_Unit: 
#	Core_Length:
#	Notes: 
#------------------
# Species:
#------------------
# Chronology: 
#----------------	
# Variables
#	Short_name	What,Material,Error,Units, Seasonality,Archive,Details,Method,Data_type		
## depth_cm	Depth,,,cm,,,,,N
## LOI_percent	Loss On Ignition,sediment,,percent,,paleolimnology,,,,N
#----------------
# Data
# Missing_Values: 
#
# Data line format - tab-delimited text, variable short name as header
depth_cm	LOI_percent	
0	2.4658
2	3.0257
4	3.3939
6	1.5332
8	1.1083
10	1.8059
12	1.7431
14	1.9716
16	2.1455
18	1.1317
20	0.7184
22	5.1435
24	1.6362
26	1.4469
28	1.0054
30	1.114
32	1.325
34	0.8065
36	1.5296
38	0.8234
40	1.2618
42	1.1184
44	1.6103
46	0.6637
48	0.5835
50	1.9751
52	1.0784
54	0.9404
56	1.7525
58	0.989
60	5.9974
62	2.8344
64	6.5248