# Northwest Pacific Ocean Eolian Flux Data Since 23 Ma
#-----------------------------------------------------------------------
#               World Data Service for Paleoclimatology, Boulder
#                                   and
#                      NOAA Paleoclimatology Program
#-----------------------------------------------------------------------
# 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 '#' followed by a space
# Data lines have no '#'
#
# NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/36734
#   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-ocean-36734.json
#   Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata.
#
# Data_Type: Paleoceanography
#
# Dataset_DOI: 10.25921/z6tc-4222
#
# Science_Keywords: Atmospheric and Oceanic Circulation Patterns Reconstruction, westerlies
#---------------------------------------
# Resource_Links
#
# Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/tang2022/tang2022-1208eolianflux.txt
#   Data_Download_Description: NOAA Template File; Eolian Flux Data
#
#---------------------------------------
# Contribution_Date
#   Date: 2022-09-05
#---------------------------------------
# File_Last_Modified_Date
#   Date: 2025-05-27
#---------------------------------------
# Title
#   Study_Name: Northwest Pacific Ocean Eolian Flux Data Since 23 Ma
#---------------------------------------
# Investigators
#   Investigators: Tang, Yi; Wan, Shiming
#---------------------------------------
# Description_Notes_and_Keywords
#   Description: The eolian flux record in North Pacifc Ocean was reconstructed by Sr-Nd isotopes and used to constrain the path of the westerlies since the early Miocene.
#         Provided Keywords: eolian dust, the westerlies, Sr-Nd isotopes
#---------------------------------------
# Publication
#   Authors: Yi Tang, Shiming Wan, Peter D. Clift, Debo Zhao, Zhaokai Xu, Jin Zhang, Zehua Song, Hualong Jin, Mengjun Li, Anchun Li
#   Published_Date_or_Year: 2022-09-28
#   Published_Title: Northward shift of the Northern Hemisphere westerlies in the early to late Miocene and its links to Tibetan uplift
#   Journal_Name: Geophysical Research Letters
#   Volume: 49 
#   Edition: 
#   Issue: 18
#   Pages: 
#   Report_Number: e2022GL099311
#   DOI: 10.1029/2022GL099311
#   Online_Resource: 
#   Full_Citation: 
#   Abstract: Despite the importance of the westerlies to the global climate system, we still know little about their long-term evolution and possible orographic controls during the late Cenozoic because of the lack of sedimentary records with precise chronological control. Eolian deposition in the North Pacific preserved past information about the westerlies, the major wind system delivering Asian dust to the Pacific. A continuous, high-resolution eolian flux record since 23 Ma was reconstructed from sediments at Deep Sea Drilling Project (DSDP) Site 296 in the North Pacific. Combined with dust flux at Ocean Drilling Program (ODP) Site 1208, variations in their difference indicated a northwards shift of the westerlies during 23-9 Ma and a relatively stable state since then. We suggest that Tibetan uplift since the early Miocene began to drive the poleward shift of the westerlies until 9 Ma, after which the westerlies remained relatively stable over Asia on million-year timescales.
#---------------------------------------
# Funding_Agency
#   Funding_Agency_Name: National Natural Science Foundation of China
#   Grant: 42125602, 42076052
#---------------------------------------
# Funding_Agency
#   Funding_Agency_Name: Strategic Priority Research Program of Chinese Academy of Sciences
#   Grant: XDB40010100
#---------------------------------------
# Funding_Agency
#   Funding_Agency_Name: Innovation Project
#   Grant: 2022QNLM050203, MGQNLM-KF202001
#---------------------------------------
# Funding_Agency
#   Funding_Agency_Name: Taishan and Aoshan Talents Program
#   Grant: 2017ASTCP-ES01
#---------------------------------------
# Site_Information
#   Site_Name: ODP Site 1208
#   Location: North Pacific Ocean
#   Northernmost_Latitude: 36.13
#   Southernmost_Latitude: 36.13
#   Easternmost_Longitude: 158.2
#   Westernmost_Longitude: 158.2
#   Elevation_m: 3346
#---------------------------------------
# Data_Collection
#   Collection_Name: ODP-1208 Eolian Flux
#   First_Year: 23370000
#   Last_Year: 40000
#   Time_Unit: calendar year before present
#   Core_Length_m: 320
#   Parameter_Keywords: 
#   Notes: 
#---------------------------------------
# Chronology_Information 
# Chronology: 
#---------------------------------------
# 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	depth,,,meter,,Paleoceanography,,,N,
## Age	age,,,million years ago,,Paleoceanography,,,N,
## Siliciclastic_fraction	mineral matter,,,percent,,Paleoceanography,,,N,chemical extraction
## Eolian_fraction	dust,,,percent,,Paleoceanography,,,N,two end-members mixing
## Eolian_flux	dust,,,gram per square centimeter per kiloyear,,Paleoceanography,,,N,calculated as MAR siliciclastic fraction eolian fraction
#------------------------
# Data:
# Data lines follow (have no #)
# Data line format - tab-delimited text, variable short name as header
# Missing_Values: 
Depth	Age	Siliciclastic_fraction	Eolian_fraction	Eolian_flux
2.14	0.04	37	61.86	0.73989
21.39	0.39	21	61.86	0.48254
29.96	0.55	17	61.86	0.46027
55.63	1.06	44	61.86	0.83145
64.20	1.26	31	96.46	0.81989
72.76	1.47	18	95.12	0.51458
81.31	1.68	19	93.71	0.57911
89.87	1.88	19	92.30	0.53902
98.43	2.10	46	91.62	1.23596
104.13	2.23	29	90.87	0.87876
109.79	2.36	21	90.43	0.65474
115.48	2.49	46	81.08	1.49187
121.15	2.62	56	79.04	1.21875
126.84	2.76	50	84.52	1.03881
132.53	2.91	16	90.43	0.46031
138.19	3.05	32	56.66	0.46740
143.88	3.20	15	73.35	0.37259
149.56	3.38	12	91.23	0.38315
155.26	3.54	16	59.69	0.27159
160.91	3.73	20	60.61	0.23030
165.09	3.89	58	61.69	0.74465
169.27	4.05	21	92.30	0.39965
173.41	4.20	15	90.55	0.37940
177.60	4.32	24	88.91	0.43566
181.77	4.46	27	87.60	0.58690
185.96	4.65	52	92.57	0.81368
190.09	4.84	27	87.16	0.35911
194.27	4.99	18	81.76	0.25345
198.45	5.17	21	77.49	0.35645
202.58	5.34	29	84.87	0.50497
206.78	5.51	56	88.62	0.94819
209.97	5.63	24	84.38	0.42192
212.26	5.72	21	83.90	0.32722
214.98	5.83	28	91.49	0.54439
217.74	5.95	28	90.49	0.43162
220.49	6.09	26	89.39	0.42906
223.22	6.26	23	88.10	0.23172
224.22	6.30	26	89.09	0.49893
229.44	6.49	31	89.33	0.66103
231.44	6.56	50	90.43	0.80125
234.19	6.75	34	101.46	0.39469
235.19	6.82	41	83.47	0.46157
239.66	7.14	26	76.84	0.27969
242.42	7.33	42	63.77	0.30162
245.15	7.64	25	83.19	0.10398
248.63	7.98	45	90.48	0.34382
250.63	8.18	32	98.48	0.28756
252.21	8.33	30	78.37	0.19592
253.78	8.48	16	89.39	0.14839
255.37	8.64	13	85.02	0.10628
256.47	8.73	35	80.36	0.32869
258.52	8.87	27	77.74	0.26433
260.13	8.98	45	73.67	0.39560
261.68	9.09	22	78.50	0.23080
263.26	9.21	27	83.34	0.27336
265.85	9.40	17	88.62	0.19584
268.01	9.56	21	72.24	0.19505
269.58	9.68	30	68.90	0.21842
271.17	9.81	13	110.13	0.13215
272.75	9.97	11	78.59	0.07938
273.95	10.07	16	126.49	0.18974
277.05	10.41	19	75.55	0.12542
277.49	10.46	21	104.88	0.18774
279.06	10.62	20	103.18	0.18882
280.64	10.78	9	97.74	0.07819
282.23	10.94	60	92.30	0.34427
283.81	11.13	50	94.77	0.30704
285.00	11.27	48	97.82	0.27684
286.97	11.51	44	100.07	0.31023
288.54	11.69	40	103.93	0.29206
290.12	11.88	18	98.77	0.13137
291.70	12.08	24	105.84	0.17993
293.28	12.29	24	92.44	0.14790
294.86	12.50	7	78.37	0.03605
296.45	12.74	6	81.21	0.03411
299.61	13.19	19	84.45	0.10472
301.19	13.42	5	90.53	0.02716
302.77	13.65	4	93.64	0.02341
303.85	13.87	7	96.74	0.02902
305.92	14.35	5	65.19	0.01304
307.50	14.72	8	116.82	0.04205
309.08	15.08	9	107.97	0.04751
310.66	15.57	28	99.36	0.08744
312.24	16.06	35	91.83	0.08541
313.82	16.56	37	84.30	0.09021
313.96	16.60	34	76.62	0.07739
315.36	17.04	12	76.62	0.03371
315.52	17.09	19	76.62	0.05440
315.69	17.15	14	76.89	0.04229
315.86	17.20	16	77.22	0.04865
316.04	17.26	20	77.49	0.05967
316.20	17.31	17	84.69	0.05590
316.37	17.36	34	90.70	0.11700
316.55	17.42	53	86.50	0.17041
316.72	17.47	35	81.47	0.10591
316.88	17.52	21	77.27	0.05950
317.05	17.57	9	82.82	0.02816
317.23	17.63	9	88.36	0.03004
317.39	17.68	13	86.06	0.04303
317.56	17.73	7	84.14	0.02272
317.73	17.79	23	83.84	0.07378
317.91	17.84	14	83.48	0.04425
318.07	17.89	17	83.19	0.05573
318.24	17.95	20	79.49	0.06359
318.42	18.00	7	84.39	0.02279
318.58	18.05	12	88.48	0.04247
318.75	18.11	10	92.57	0.03795
318.92	18.16	55	75.18	0.16915
318.98	18.18	40	60.68	0.09770
319.02	18.19	24	66.46	0.06580
319.07	18.29	19	66.20	0.00397
319.12	18.50	44	63.58	0.00827
319.17	18.71	58	58.07	0.00987
319.23	18.96	64	54.52	0.01036
319.27	19.13	69	58.23	0.01223
319.32	19.35	68	52.17	0.01096
319.37	19.56	62	53.63	0.01019
319.42	19.77	57	62.63	0.01065
319.48	20.02	48	71.64	0.01075
319.52	20.19	41	51.89	0.00623
319.57	20.41	65	55.22	0.01104
319.62	20.62	64	59.53	0.01131
319.67	20.83	46	57.75	0.00809
319.73	21.08	66	56.14	0.01123
319.77	21.25	71	54.21	0.01138
319.82	21.47	70	52.90	0.01111
319.87	21.68	60	54.07	0.00973
319.92	21.89	71	54.15	0.01137
319.98	22.14	64	54.22	0.01030
320.02	22.31	79	53.52	0.01284
320.07	22.52	79	53.04	0.01273
320.12	22.74	61	48.84	0.00879
320.17	22.95	39	50.04	0.00600
320.23	23.20	36	51.19	0.00563
320.27	23.37	41	52.55	0.00631