# Brooks Range, Alaska 13,000 Year Alkenone and Leaf Wax d2H Data
#----------------------------------------------------------------------- 
#                World Data Service for Paleoclimatology, Boulder 
#                                  and 
#                     NOAA Paleoclimatology Program 
#             National Centers for Environmental Information (NCEI)
#----------------------------------------------------------------------- 
# 
# 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: https://www.ncdc.noaa.gov/paleo/study/20205
# Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/northamerica/usa/alaska/kurupa2016uk37.txt
#
# Original_Source_URL: 
# 
# Description/Documentation lines begin with #
# Data lines have no #
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# Archive: Paleolimnology
#
# Parameter_Keywords: geochemistry, hydrogen isotopes
#--------------------
# Contribution_Date
#	Date: 2016-05-23
#--------------------
# Title
#	Study_Name: Brooks Range, Alaska 13,000 Year Alkenone and Leaf Wax d2H Data
#--------------------
# Investigators
# 	Investigators: D'Andrea, W.J.; Kaufman, D.; Briner, J. 
#--------------------
# Description_and_Notes
#	Description: Sediment biomarker (Uk'37) and leaf wax hydrogen isotope (d2H) data from two lakes in the Brooks Range, Arctic Alaska. 
#	Data are interpreted for centennial- to millennial-scale trends in glacier extent and lake sedimentation in the Brooks Range. 
#	Analytical precision of the alkenone measurements is ~0.005.
#	Provided keywords: hydrogen isotope, n-alkanes, leaf wax 
#--------------------
# Publication 
#	Authors: 
#	Published_Date_or_Year: 
#	Published_Title: 
#	Journal_Name: 
#	Volume: 
#	Edition: 
#	Issue: 
#	Pages: 
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#	Abstract: 
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# Funding_Agency 
#	Funding_Agency_Name: US National Science Foundation
#	Grant: ARC 11-07885
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# Site_Information 
#	Site_Name: Kurupa Lake
#	Location: North America>United States Of America>Alaska
#	Country: United States Of America 
#	Northernmost_Latitude: 68.35
#	Southernmost_Latitude: 68.35
#	Easternmost_Longitude: -154.61
#	Westernmost_Longitude: -154.61
#	Elevation: 920 m  
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# Data_Collection   
#	Collection_Name: Kurupa2016UK37
#	Earliest_Year: 10025
#	Most_Recent_Year: -60
#	Time_Unit: 14C years BP
#	Core_Length: 1.25 m
#	Notes: 
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# Chronology_Information
#	Chronology: 
# lab_ID	C14_age	error	depth below lake floor (cm)	thickness
# 89097	2220	15	16	1
# 89098	4515	20	46	1
# 83782	7660	120	68.5	1
# 89100	9325	20	85.5	1
# 89101	9555	20	103	1
# 83783	10025	30	122.5	1
#  	
#----------------	
# Variables 
#
# Data variables follow are preceded by "##" in columns one and two.
# Data line variables format:  Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) 
#
## depth_cm	depth, , , cm, , , depth delow lake floor, ,N
## uk37	alkenone unsaturation ratio, , ,,,,,,N
#
#----------------
# Data:
# Data lines follow (have no #)
# Data line format - tab-delimited text, variable short name as header
# Missing Values: 
#
depth_cm	uk37
0	-0.519
2	-0.499
10	-0.469
12	-0.488
16	-0.509
17	-0.488
18	-0.516
20	-0.489
22	-0.422
26	-0.465
30	-0.480
31	-0.513
32	-0.540
33	-0.518
34	-0.482
35	-0.482
36	-0.513
38	-0.528
39	-0.517
40	-0.512
41	-0.513
42	-0.534
46	-0.516
47	-0.499
48	-0.497
50	-0.524
52	-0.534
54	-0.469
56	-0.484
58	-0.556
59	-0.451
61	-0.492
62	-0.520
63	-0.462
64	-0.509
66	-0.490
67	-0.443
68	-0.508
71	-0.557
72	-0.525
73	-0.532
75	-0.538
76	-0.513
77	-0.529
78	-0.560
79	-0.541
81	-0.464
99	-0.379
111	-0.455
113	-0.368
115	-0.417