#-----------------------------------------------------------------------
#                World Data Center for Paleoclimatology, Boulder 
#                                  and 
#                     NOAA Paleoclimatology Program 
#----------------------------------------------------------------------- 

# NOTE: Please cite original reference when using these data,
# plus the Online Resource and date accessed.

# Original_Source_URL: 
# Archive: Ice core
#--------------------
# Contribution_Date
# Date: 03-Jan-2015
#--------------------
# Title
# Study_name: Penny Ice Cap Baffin Island Ice core Ice melt
#--------------------
# Investigators
# Investigators: Okuyama, Junichi and Narita, Hideki and Hondoh, Takeo and Koerner, Roy M.
#--------------------
# Publication
#       Authors: McKay, N.P. and Kaufman, D.S. 
#       Journal_Name: Nature Scientific Data
#       Published Title: An extended Arctic proxy temperature database for the past 2,000 years 
#       Published Date: August 2014 
#       DOI: 10.1038/sdata.2014.26 
#       Abstract: Robust climate reconstructions of the most recent centuries and millennia are invaluable for placing modern warming in the context of natural variability. Here we present an extended and revised database (version 1.1) of proxy temperature records recently used to reconstruct Arctic temperatures for the past 2,000 years. The datasets are presented in a machine-readable format, and have been extended with the geochronologic data and consistently generated time-uncertain ensembles, which will be useful in future analyses of the influence of geochronologic uncertainty. A revised reconstruction using the included updates and corrections suggests a stronger long-term cooling trend between AD 1 and 1900 than previously reported, although decadal to century variability remains consistent with previous studies. Comparisons with the observational record of temperature suggest that as a whole, the datasets faithfully record temperature variability across the Arctic, especially in northeast Canada and Greenland, where the density of records is highest. 
#--------------------
# Publication
#       Authors: Okuyama, Junichi and Narita, Hideki and Hondoh, Takeo and Koerner, Roy M. 
#       Journal Name: Journal of Geophysical Research 
#       Published Title: Physical properties of the P96 ice core from Penny Ice Cap, Baffin Island, Canada, and derived climatic records 
#       Published Date: 2003 
#       DOI: 200310.1029/2001JB001707 
#       Abstract:  
#--------------------
# Site_Information
#        Site_Name: Penny Ice Cap
#        Region: Arctic
#        Northernmost Latitude: 67.25
#        Southernmost Latitude: 67.25
#        Easternmost Longitude: -66.75
#        Westernmost Longitude: -66.75
#--------------------
# Data_Collection
#        Collection_Name: Okuyama.2003.Penny Ice Cap
#        Earliest_Year: 9
#        Most_Recent_Year: 1984
#        Time_Unit: AD
#--------------------
# Chronology
#--------------------
# Variables
# Data line variables format:  9 components, and a 10th for climate-sensitive variables: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data, direction of relation to climate (positive or negative)
## year_AD	 age, , , AD, , ,bottom of sample, ,N 
## melt_#--------------------
# Data
# Missing_Values: NA
# Age Ensembles archived at Okuyama.2003.Penny Ice Cap_AgeEnsemble.nc 
#year_AD	melt_9	 80.000
34	 82.014
59	 83.200
84	 79.718
109	 75.700
134	 80.141
159	 87.600
184	 84.144
209	 77.800
234	 81.315
259	 86.600
284	 88.999
309	 91.300
334	 90.208
359	 89.700
384	 84.491
409	 83.598
434	 82.000
459	 77.014
484	 72.800
509	 92.234
534	 91.645
559	 88.400
584	 91.514
609	 90.164
634	 87.400
659	 84.664
684	 72.370
709	 69.097
734	 83.600
759	 75.868
784	 83.640
809	 71.724
834	 60.260
859	 79.036
884	 80.200
909	 83.027
934	 88.966
959	 64.255
984	 60.547
1009	 75.044
1034	 81.739
1059	 68.840
1084	 85.148
1109	 41.138
1134	 71.790
1159	 92.535
1184	 81.518
1209	 82.855
1234	 76.910
1259	 84.472
1284	 57.687
1309	 32.723
1334	 66.210
1359	 90.473
1384	 67.353
1409	 76.972
1434	 74.326
1459	 62.282
1484	 59.358
1509	 84.182
1534	 68.219
1559	 80.601
1584	 74.878
1609	 48.790
1634	 62.032
1659	 72.915
1684	 48.253
1709	 44.418
1734	 79.931
1759	 72.946
1784	 53.515
1809	 80.286
1834	 65.683
1859	 73.876
1884	 80.185
1909	 92.567
1934	 83.773
1959	 92.623
1984	 80.419
