# West Greenland 9,500 Year Multiproxy Lake Sediment Data
#----------------------------------------------------
#                World Data Service for Paleoclimatology, Boulder
#                                  and
#                     NOAA Paleoclimatology Program
#             National Centers for Environmental Information (NCEI)
#----------------------------------------------------
# Template Version 4.0
# Encoding: UTF-8
# NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed.
#
# Description/Documentation lines begin with #
# Data lines have no #
#
# NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/13116
#   Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata.
#
# Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-lake-13116.json
#   Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata.
#
# Data_Type: Paleolimnology
#
# Dataset_DOI: 10.25921/v15d-7q90
#
# Science_Keywords: PAGES Arctic 2k, PAGES 2k Network
#--------------------
# Resource_Links
#
# Data_Download_Resource:  https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/greenland/westgreenland2012-SS16-loi-noaa.txt
#   Data_Download_Description: NOAA Template File; Loss-On-Ignition Data
#
#--------------------
# Contribution_Date
#   Date: 2012-06-30
#--------------------
# File_Last_Modified_Date
#   Date: 2024-09-09
#--------------------
# Title
#   Study_Name: West Greenland 9,500 Year Multiproxy Lake Sediment Data
#--------------------
# Investigators
#   Investigators: Perren, B.(https://orcid.org/0000-0001-6089-6468); Anderson, N.J.(https://orcid.org/0000-0002-0037-0306); Douglas, M.S.V.; Fritz, S.C.(https://orcid.org/0000-0002-4423-4189)
#--------------------
# Description_Notes_and_Keywords
#   Description: Multiproxy Holocene sediment data from 3 lakes in west Greenland. Paleoenvironmental proxies measured include diatoms, organic content, and spectrally inferred sediment chlorophyll-a. West Greenland lake locations: 
# SS32(Nunatak): 66.97°N, 49.80°W, 470m elevation, 21m water depth.
# SS16: 66.91°N, 50.46°W, 477m elevation, 12m water depth.
# SS49: 66.86°N, 52.64°W, 330m elevation, 10m water depth.
#--------------------
# Publication
#   Authors: Perren, B.B., N.J. Anderson, M.S.V. Douglas, and S.C. Fritz
#   Journal_Name: Journal of Paleolimnology
#   Published_Title: The influence of temperature, moisture, and eolian activity on Holocene lake development in West Greenland
#   Published_Date_or_Year: 2012
#   Volume: 48
#   Pages: 223-239
#   Issue: 1
#   Report_Number: 
#   DOI: 10.1007/s10933-012-9613-6
#   Full_Citation:
#   Abstract: Holocene paleolimnological records (diatoms, organic content, spectrally inferred sediment chlorophyll-a) from three West Greenland lakes (~67°N) situated along a transect from the outer coast to a nunatak at the periphery of the Greenland Ice Sheet are used to explore the nature of regional postglacial lake development and its relationship to Holocene climate evolution. The lakes were deglaciated asynchronously by approximately 4 ka (earliest on the coast) and thus their sediment records document different starting points of Holocene ontogeny, both temporally and paleoclimatically. Despite similar time-transgressive characteristics of the diatom stratigraphies, overarching climatic factors, principally effective moisture, and eolian inputs, govern individual lake development. The transition to Neoglaciation between 5.6 and 4 ka BP marks a shift toward a cooler, moister, windier climate from the aridity and higher temperatures of the mid-Holocene (8–6 ka BP). A shift toward increased aridity, windiness, and eolian activity is documented in the interior lakes over the last 500 years. These lake records demonstrate the sensitivity of freshwater lakes in arid regions to changes in effective moisture and highlight the role of wind and eolian activity in Arctic lake environments.
#--------------------
# Funding_Agency
#   Funding_Agency_Name:
#   Grant:
#--------------------
# Site_Information
#   Site_Name: SS16
#   Location: Greenland
#   Northernmost_Latitude: 66.91
#   Southernmost_Latitude: 66.91
#   Easternmost_Longitude: -50.46
#   Westernmost_Longitude: -50.46
#   Elevation_m: 477
#--------------------
# Data_Collection
#   Collection_Name: SS16-2012 LOI
#   First_Year: 8328
#   Last_Year: -49
#   Time_Unit: cal yr BP
#   Core_Length_m:
#   Parameter_Keywords: physical properties
#   Notes: 
#--------------------
# Chronology_Information
#   Chronology: Radiocarbon
#   Chronology_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/templates/noaa-wds-paleo-14c-terms.csv
#     Chronology_Download_Description: Radiocarbon terms and definitions.
#   Chronology_Notes:
#   Rejection_Rationale: 
#   Reservoir_Method: 
#   Calibration_Method: Calib 5.0.1 (Stuiver and Reimer 1993)
#   Age_Model_Method: CLAM (Blaauw 2010)
#   Missing_Values: NaN
#   Chronology_Table:
# lab_code	depth_end_cm	depth_start_cm	material_dated	age_14C_BP1950	age_14C_1s_yr	age_calib_BP1950	calib_curve
# AAR-5936	25	26	gyttja	625	40	602	IntCal
# AAR-5935	66	67	gyttja	1910	45	1855	IntCal
# AAR-5934	109	110	gyttja	2840	50	2954	IntCal
# AAR-5933	142	143	gyttja	3975	60	4442	IntCal
# AAR-5932	188	189	gyttja	4285	45	4855	IntCal
# AAR-5931	204	205	terrestrial plant	5035	55	5793	IntCal
# AAR-5930	252	253	gyttja	6320	65	7251	IntCal
#--------------------
# Variables
# PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf
#   PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format.
#
# Data variables follow that are preceded by '##' in columns one and two.
# Variables list, one per line, shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data)
#
## depth_cm	depth,,,centimeter,,paleolimnology,,,N,
## age_calBP	age,,,calendar year before present,,paleolimnology,,,N,
## LOI	organic matter,sediment,,percent,,paleolimnology,,loss on ignition,N,
#--------------------
# Data:
# Data lines follow (have no #)
# Data line format - tab-delimited text, variable short name as header
# Missing_Values:
depth_cm	age_calBP	LOI
0.25	-49	44.97816594
0.75	-48	34.05928615
1.25	-46	38.76123876
1.75	-45	38.68954758
2.25	-42	37.38872404
2.75	-40	32.97062024
3.25	-36	31.23678647
3.75	-31	32.50620347
4.25	-26	33.39350181
4.75	-22	33.66391185
5.25	-17	32.64248705
5.75	-13	32.95753476
6.25	-8	33.63677742
6.75	-2	29.75103734
7.25	5	23.26515705
7.75	13	26.29840889
8.25	22	27.41215839
8.75	32	23.6228127
9.25	43	22.64897579
9.75	56	23.48977695
10.25	74	30.57535642
10.75	97	26.27317838
11.25	119	25.71283096
11.75	139	22.85908473
12.25	160	22.64524648
12.75	179	19.11764706
13.25	199	18.66992068
13.75	218	21.57401052
14.25	237	21.1011011
14.75	256	22.23722276
15.25	275	19.20073496
15.75	293	23.31118494
16.25	311	19.89676208
16.75	329	19.59448757
17.25	346	21.8968386
17.75	364	25.1843318
18.25	381	21.39551442
18.75	398	19.33719434
19.25	415	20.2037948
19.75	432	22.31036192
20.25	449	25.28453861
20.5	457	21.7029703
20.75	465	21.98543296
21.25	482	25.24607149
21.5	490	21.38029171
21.75	498	22.45739111
22.25	515	24.07096172
22.5	523	21.1816908
22.75	531	24.07096172
23.25	548	20.1051612
23.5	556	19.70891449
23.75	564	24.69028472
24.25	581	19.0490386
24.5	589	18.76163086
24.75	597	20.33153585
25.25	614	18.85864593
25.5	622	20.60385798
25.75	630	21.49941167
26.25	647	19.97034841
26.5	655	19.79663831
26.75	663	20.37928958
27.25	679	21.53674478
27.5	688	20.28888889
27.75	696	22.10736308
28.25	712	16.21435143
28.5	720	15.54467564
28.75	728	20.13672165
29.25	745	18.25460368
29.5	753	18.25197115
29.75	761	20.11326861
30.5	785	22.56846081
31.5	817	22.22532069
32.5	849	25.56501321
33.5	881	25.67865004
34.5	913	26.99934626
35.5	945	28.92583795
36.5	976	25.76028623
37.5	1008	25.80571947
38.5	1039	28.23433686
39.5	1070	27.75263952
40.5	1101	27.88772213
41.5	1132	25.16943931
42.5	1162	30.67740144
43.5	1193	29.54390742
44.5	1224	29.17722978
45.5	1254	28.12152649
46.5	1284	28.35625409
47.5	1314	33.57041252
48.5	1344	34.00673401
49.5	1374	38.46153846
50.5	1404	32.36739974
51.5	1433	31.84818482
52.5	1463	32.13631367
53.5	1492	31.19713728
54.5	1522	32.6099054
55.5	1551	36.23580314
56.5	1580	32.0754717
57.5	1609	27.16688228
58.5	1638	31.85705559
59.5	1666	36.13662457
60.5	1695	36.11486486
61.5	1724	37.71001867
62.5	1752	38.49594632
63.5	1780	37.72905759
64.5	1809	31.35704875
65.5	1837	35.11261956
66.5	1865	36.60860098
67.5	1892	38.94762724
68.5	1919	38.0474198
69.5	1945	34.57372952
70.5	1971	37.45856354
71.5	1996	31.49364871
72.5	2021	38.18941504
73.5	2045	39.39105614
74.5	2069	36.07344633
75.5	2093	33.46730975
76.5	2116	32.10290828
77.5	2139	36.03920583
78.5	2162	35.54764729
79.5	2185	29.8964105
80.5	2208	30.85972851
81.5	2230	30.80781415
82.5	2253	37.64059639
83.5	2275	31.7409505
84.5	2297	34.86005089
85.5	2320	36.31338621
86.5	2342	38.69383747
87.5	2365	37.46130031
88.5	2388	34.49395102
89.5	2411	30.91436865
90.5	2434	33.01199657
91.5	2458	30.19883041
92.5	2482	30.35714286
93.5	2506	28.56496152
94.5	2531	28.75469337
95.5	2556	29.56366874
96.5	2582	30.52232855
97.5	2608	28.71597205
98.5	2634	31.74342105
99.5	2662	30.3030303
100.5	2689	28.13805232
101.5	2718	24.71751412
101.5	2718	25.47390288
102.5	2747	28.34728033
102.5	2747	28.09352518
103.5	2777	28.90420727
103.5	2777	30.63170441
104.5	2808	28.92641737
104.5	2808	29.58349552
105.5	2840	26.12190221
105.5	2840	25.45961003
106.5	2872	30.18203171
106.5	2872	30.65043065
107.5	2906	26.9379845
107.5	2906	26.77538138
108.5	2940	28.2376841
108.5	2940	28.23994076
109.5	2976	32.41226858
109.5	2976	32.23995272
110.5	3014	29.14951989
110.5	3014	27.21560847
111.5	3054	27.61459724
111.5	3054	27.9910339
112.5	3097	30.06551808
112.5	3097	31.94898627
113.5	3142	31.13903305
113.5	3142	28.27468231
114.5	3188	27.23015687
114.5	3188	27.36656596
115.5	3237	29.98712999
115.5	3237	31.42931664
116.5	3286	28.50157178
116.5	3286	29.60599334
117.5	3337	31.12391931
117.5	3337	32.12379936
118.5	3389	32.24080268
118.5	3389	32.54145014
119.5	3442	31.0508797
119.5	3442	32.22273998
120.5	3496	29.83275947
121.5	3550	30.20767778
122.5	3605	30.60200669
123.5	3659	31.25803962
124.5	3714	30.9785322
125.5	3768	24.95408632
126.5	3821	33.09438471
127.5	3874	32.7301092
128.5	3926	39.69963162
129.5	3977	36.00095557
130.5	4027	39.90929705
131.5	4075	38.34762276
132.5	4121	38.71374527
133.5	4166	40.30274361
134.5	4208	38.79598662
135.5	4248	44.11143943
136.5	4286	44.75011463
137.5	4321	40.31117397
138.5	4353	36.31756757
139.5	4382	36.62272889
140.5	4408	30.56564608
141.5	4430	36.78284182
142.5	4449	33.7441564
143.5	4466	32.67504488
144.5	4482	29.37114673
145.5	4497	27.88502789
146.5	4510	31.91315035
147.5	4522	31.86298669
148.5	4534	34.57041179
149.5	4544	31.61271508
150.5	4553	37.89196311
151.5	4561	28.52485738
152.5	4569	27.89943228
153.5	4576	33.45343681
154.5	4582	34.73305339
155.5	4588	37.68441309
156.5	4593	31.01045296
157.5	4597	31.72671211
158.5	4601	31.70731707
159.5	4605	32.70440252
160.5	4609	35.18179972
161.5	4612	31.63571001
162.5	4615	32.92721025
163.5	4618	31.76530961
164.5	4622	34.56956188
165.5	4625	34.82598094
166.5	4628	34.13674373
167.5	4632	32.63902159
168.5	4636	36.35722679
169.5	4640	32.74825679
170.5	4644	36.6969602
171.5	4649	34.49447749
172.5	4655	35.74269006
172.5	4655	35.64567769
173.5	4661	33.44430218
173.5	4661	34.62446859
174.5	4668	29.71971276
174.5	4668	30.83061299
175.5	4675	29.83950213
175.5	4675	30.96196868
176.5	4684	29.49019608
176.5	4684	32.19829745
177.5	4693	31.53034301
177.5	4693	30.95380924
178.5	4703	32.72251309
178.5	4703	32.61087029
179.5	4714	31.00514887
179.5	4714	33.14457029
180.5	4726	26.15331252
180.5	4726	27.98913043
181.5	4740	29.98392283
181.5	4740	31.62845385
182.5	4754	32.28869896
182.5	4754	31.44032922
183.5	4770	32.76955603
183.5	4770	34.43469282
184.5	4787	31.07158542
184.5	4787	31.42144638
185.5	4806	32.18435321
185.5	4806	32.66048974
186.5	4826	33.91364903
186.5	4826	36.14973262
187.5	4847	32.58345428
187.5	4847	30.53435115
188.5	4872	29.74045802
188.5	4872	29.80544747
188.5	4872	28.52001799
189.5	4905	29.91638278
189.5	4905	30.2919708
189.5	4905	29.74238876
190.5	4947	32.46478873
190.5	4947	34.62566845
190.5	4947	27.33245729
191.5	4996	28.69490061
191.5	4996	30.09592326
191.5	4996	29.32618683
192.5	5051	29.3040293
192.5	5051	29.97264556
192.5	5051	27.62126053
193.5	5112	28.01086628
193.5	5112	29.01883487
193.5	5112	25.97955707
194.5	5177	27.96528447
194.5	5177	29.10268714
194.5	5177	29.5813315
195.5	5245	33.06622673
195.5	5245	34.27524856
195.5	5245	34.45741461
196.5	5315	33.74844334
196.5	5315	35.04972376
196.5	5315	34.01191658
197.5	5386	36.31123919
197.5	5386	36.77571935
197.5	5386	35.54301834
198.5	5457	33.88461538
198.5	5457	35.16774573
198.5	5457	32.2406639
199.5	5525	32.42494226
199.5	5525	33.76205788
199.5	5525	31.99508398
200.5	5592	39.35666982
200.5	5592	37.61493452
200.5	5592	35.99167822
201.5	5654	35.55332999
201.5	5654	34.66453674
201.5	5654	34.6686747
202.5	5711	30.88713423
202.5	5711	29.14213625
203.5	5763	33.30097087
203.5	5763	30.85360038
204.5	5808	34.93150685
204.5	5808	35.60463237
205.5	5851	39.13043478
205.5	5851	38.42156544
206.5	5894	38.00511509
206.5	5894	35.43406732
207.5	5934	35.11982571
207.5	5934	35.2173913
208.5	5974	37.31070496
208.5	5974	35.83076245
209.5	6013	35.44258798
209.5	6013	34.0192926
210.5	6051	35.63643841
210.5	6051	37.48247827
211.5	6088	39.57571324
211.5	6088	33.2388664
212.5	6125	32.37265416
212.5	6125	36.28530397
213.5	6160	36.33874026
213.5	6160	34.86127865
214.5	6194	32.09481102
214.5	6194	32.33550682
215.5	6228	31.61363636
215.5	6228	31.92194404
216.5	6261	34.46737312
216.5	6261	33.09222423
217.5	6294	32.80045675
217.5	6294	32.35800344
218.5	6325	37.03597944
218.5	6325	34.01015228
219.5	6356	33.06092125
219.5	6356	31.25
220.5	6387	34.55563584
220.5	6387	34.87544484
221.5	6417	33.99893504
221.5	6417	28.8593482
222.5	6446	29.06732118
222.5	6446	34.48626653
223.5	6475	32.83154122
223.5	6475	31.33216477
224.5	6503	34.40376355
224.5	6503	34.99526665
225.5	6531	32.60598504
225.5	6531	32.66191509
226.5	6559	34.48030375
226.5	6559	36.9470405
227.5	6586	35.67981834
227.5	6586	32.79193503
228.5	6613	32.29336818
228.5	6613	31.24528302
229.5	6640	33.1147541
229.5	6640	33.01378071
230.5	6666	36.19307832
230.5	6666	35.26299409
231.5	6693	31.76470588
231.5	6693	31.33190374
232.5	6719	31.32954238
232.5	6719	27.65617875
233.5	6745	27.18204489
233.5	6745	26.62736428
234.5	6771	27.62653024
234.5	6771	30.54662379
235.5	6797	31.5461624
235.5	6797	33.6469044
236.5	6822	36.068295
236.5	6822	36.24442696
237.5	6848	38.73670641
237.5	6848	36.88922998
238.5	6874	35.94107188
238.5	6874	34.78688525
239.5	6900	33.05689933
239.5	6900	33.05689933
240.5	6926	32.25361819
240.5	6926	33.61665958
241.5	6953	34.49753589
241.5	6953	32.1760835
242.5	6979	34.67600701
242.5	6979	30.6154188
243.5	7006	35.09142053
243.5	7006	31.00882029
244.5	7033	31.56785244
244.5	7033	32.23281976
245.5	7060	30.30229157
245.5	7060	29.00302115
246.5	7088	28.39088242
246.5	7088	27.67348307
247.5	7116	27.92984321
247.5	7116	27.25951758
248.5	7144	31.21859296
248.5	7144	26.77018634
249.5	7173	31.20567376
249.5	7173	32.73352204
250.5	7203	24.72131148
250.5	7203	30.90231568
251.5	7232	27.94389642
251.5	7232	23.2037037
252.5	7263	28.7416915
252.5	7263	26.76557864
253.5	7294	21.73195876
253.5	7294	26.96322068
254.5	7324	24.42941674
254.5	7324	21.65367122
255.5	7354	21.98113208
255.5	7354	24.00539447
256.5	7385	22.9481162
256.5	7385	20.57287782
257.5	7415	23.64795918
257.5	7415	22.84866469
258.5	7446	22.86462882
258.5	7446	23.36637298
259.5	7476	19.15337606
259.5	7476	21.33081642
260.5	7507	17.30711498
260.5	7507	18.96944824
261.5	7537	19.77366255
261.5	7537	17.26934775
262.5	7568	14.25690663
262.5	7568	9.210738111
263.5	7598	14.04337181
263.5	7598	18.25136612
264.5	7628	13.49678648
264.5	7628	12.06161463
265.5	7659	15.77012384
265.5	7659	13.05476573
266.5	7689	12.29851371
266.5	7689	15.71827057
267.5	7720	13.81129733
267.5	7720	14.12687099
268.5	7750	12.14817881
268.5	7750	12.93484263
269.5	7781	12.76239393
269.5	7781	11.69846317
270.5	7811	14.19550392
270.5	7811	12.22209554
271.5	7841	13.14195736
271.5	7841	13.07614669
272.5	7872	12.82801995
273.5	7902	12.75069536
274.5	7933	11.00495719
275.5	7963	11.01030466
276.5	7994	11.44532001
277.5	8024	12.46592317
278.5	8054	12.26577909
279.5	8085	12.85757606
280.5	8115	12.59513872
281.5	8146	11.65949435
282.5	8176	10.56830405
283.5	8207	10.44472106
284.5	8237	11.05054509
285.5	8268	11.59474206
286.5	8298	10.23255814
287.5	8328	7.269573445