# Greenland 22,000 Year Seasonal Temperature Reconstructions
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#                World Data Service for Paleoclimatology, Boulder 
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#                     NOAA Paleoclimatology Program 
#             National Centers for Environmental Information (NCEI)
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# Template Version 3.0
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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. 
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# Online_Resource: https://www.ncdc.noaa.gov/paleo/study/23430 
#       Description: NOAA Landing Page
# Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/buizert2018/readme-buizert2018.txt
#       Description: NOAA location of the template
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# Original_Source_URL:  
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# Description/Documentation lines begin with #
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# Archive: Climate Reconstructions
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# Dataset DOI: 
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# Parameter_Keywords: air temperature
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# Contribution_Date
#	Date: 2018-02-20
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# File_Last_Modified_Date
#	Date: 2018-02-20
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# Title
#	Study_Name: Greenland 22,000 Year Seasonal Temperature Reconstructions
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# Investigators
#	Investigators: Buizert, C.; Keisling, B.A.; Box, J.E.; He, F.; Carlson, A.E.; Sinclair, G.; DeConto, R.M.
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# Description_Notes_and_Keywords
#	Description: Seasonal and monthly temperature reconstructions for Greenland over the past 22,000 years.  
#	Monthly and seasonal data are stored in netCDF files.  Supplemental files in Excel and text format 
#	include seasonal deglacial temperatures at selected ice core drilling locations (NEEM, NGRIP, GISP2, 
#	Dye-3, ReCAP/Renland, Agassiz, Hans Tausen Iskappe 1995, Camp Century, EGRIP), and selected ice margin 
#	locations (Scoresby Sund, Kangerlussuaq Fjord East Greenland, Helheim, southern tip/Narsarsuaq, Nuuk,
#	Kangerlussuaq West Greenland, Disko Bugt/Jakobshavn, Thule airbase, Zachariae Isstrom, Petermann Glacier).	
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# Publication 
#	Authors: C. Buizert, B.A. Keisling, J.E. Box, F. He, A.E. Carlson, G. Sinclair, R.M. DeConto
#	Published_Date_or_Year: 2018-02-19     
#	Published_Title: Greenland-Wide Seasonal Temperatures During the Last Deglaciation
#	Journal_Name: Geophysical Research Letters
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#	DOI: 10.1002/2017GL075601
#	Online_Resource: http://onlinelibrary.wiley.com/wol1/doi/10.1002/2017GL075601/full
#	Full_Citation: 
#	Abstract: The sensitivity of the Greenland ice sheet to climate forcing is of key importance in assessing its contribution to past and future sea level rise. Surface mass loss occurs during summer, and accounting for temperature seasonality is critical in simulating ice sheet evolution and in interpreting glacial landforms and chronologies. Ice core records constrain the timing and magnitude of climate change but are largely limited to annual mean estimates from the ice sheet interior. Here we merge ice core reconstructions with transient climate model simulations to generate Greenland-wide and seasonally resolved surface air temperature fields during the last deglaciation. Greenland summer temperatures peak in the early Holocene, consistent with records of ice core melt layers. We perform deglacial Greenland ice sheet model simulations to demonstrate that accounting for realistic temperature seasonality decreases simulated glacial ice volume, expedites the deglacial margin retreat, mutes the impact of abrupt climate warming, and gives rise to a clear Holocene ice volume minimum.
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# Funding_Agency 
#	Funding_Agency_Name: US National Science Foundation (NSF)
#	Grant: ARC-1418074, ARC-1417886, ARC-1702920, AGS-1502990 
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# Funding_Agency 
#	Funding_Agency_Name: Geocenter Danmark
#	Grant: 
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# Funding_Agency 
#	Funding_Agency_Name: US National Oceanic and Atmospheric Administration (NOAA) 
#	Grant: Climate and Global Change Postdoctoral Fellowship program
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# Site_Information 
#	Site_Name: Greenland
#	Location: North America>Greenland
#	Country:  
#	Northernmost_Latitude: 85.0
# 	Southernmost_Latitude: 58.0
# 	Easternmost_Longitude:  0.0
# 	Westernmost_Longitude: -96.0
# 	Elevation:  
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# Data_Collection   
#	Collection_Name: Buizert2018
#	Earliest_Year: 22000
#	Most_Recent_Year: -60
#	Time_Unit: Cal. Year BP
#	Core_Length: 
#	Notes: 
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# Chronology_Information
#	Chronology: Greenland Ice Core Chronology 2005 (GICC05), in year BP 1950
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# Variables 
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# Data variables follow are preceded by "##" in columns one and two.
# Data line variables format:  one per line, shortname-tab-variable components (what, material, error, units, seasonality, data type,detail, method, C or N for Character or Numeric data, free text) 
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## LON		longitude, , , degrees, , , , ,N,
## LAT		latitude, , , degrees, , , , ,N,
## DEM		ice elevation, , , m above sea level, , , Digital Elevation Model, , N,
## TS2  	surface air temperature, , , K, , , , , N, Surface Air Temperature at 2m height
## PRECIP	precipitation, , , m/s water equivalent, , , , , N,Accumulation rate
## TIME		Age, , , calendar years before present (present = 1950 C.E.), , , , , N, 
## YEAR_CE	Age, , , years Common Era, , , , , N, 
## MONTH	Month, , , unitless, , , , , N, Month of the year
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