File:Wdc ice core winter deltad last 11000 years 1.png
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Captions
Summary edit
DescriptionWdc ice core winter deltad last 11000 years 1.png |
English: Winter delta-D in Antarctica WDC ice core - last 11000 years |
Date | |
Source | Own work |
Author | Merikanto |
Source of data
Jones, T.R., Cuffey, K.M., Roberts, W.H.G. et al. Seasonal temperatures in West Antarctica during the Holocene. Nature 613, 292–297 (2023). https://doi.org/10.1038/s41586-022-05411-8
https://www.nature.com/articles/s41586-022-05411-8#Sec26
Original sources of data
Note: The raw and diffusion-corrected data used to create this panel can be found at the following DOIs, and is also included here.
Raw WDC water-isotope data citations
Jones, T. R. et al. "Mid-Holocene high-resolution water isotope time series for the WAIS Divide ice core”. U.S. Antarctic Program (USAP) Data Center. (2020). doi: https://doi.org/10.15784/601326.
White, J. W. C. et al. "Stable Isotopes of Ice in the Transition and Glacial Sections of the WAIS Divide Deep Ice Core" U.S. Antarctic Program (USAP) Data Center. (2019). doi: https://doi.org/10.15784/601274.
Raw data citation for data in the range 0-31 ka, in addition to the above citations
Jones, T. R., Roberts, W. H. G., Steig, E. J., Cuffey, K. M., Markle, B. R., & White, J. W. C. Southern Hemisphere climate variability forced by Northern Hemisphere ice-sheet topography. Nature, 554, 351-355 (2018).
Diffusion-corrected WDC water-isotope data citation
Jones, T. R. (2022) "Seasonal temperatures in West Antarctica during the Holocene " U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601603.
Diffusion-corrected data citation in the range 0-11 ka (this study), in addition to the above citations
Jones, T. R., Cuffey, K. M., Roberts, W. H. G., Markle, B. R., Steig, E. J., Stevens, C. M., Valdes, P. J., Fudge, T. J., Sigl, M., Hughes, A. G., Morris, V., Vaughn, B. H., Garland, J., Vinther, B. M., Rozmiarek, K. S., Brashear, C. A., & White, J. W. C. (2022, in press). Seasonal temperatures in West Antarctica during the Holocene. Nature.
Python3 code to plot processed data
-
- plot curve from csv, savgol filter
-
- 27.12.2023 v 0000.0000
-
import math
import numpy as np
import matplotlib.pyplot as plt
import pandas as pd
from scipy.signal import savgol_filter
infile1="./a6/41586_2022_5411_MOESM5_ESM_2_2.csv"
title1="Holocene WDC ice core winter delta-D"
xlabel1="Year AD"
ylabel1="Delta-D"
xbegin1=-10000
xend1=2000
column0=3
column1=4
df00 = pd.read_csv(infile1, delimiter=";")
print(df00.head(n=1))
- df01=df00["Age"].replace(',', '.', inplace=True)
df01=df00.replace(',', '.', regex=True)
- print(df01)
x01=np.array(df01[df01.columns[column0]]).astype(float)
y01=np.array(df01[df01.columns[column1]]).astype(float) ## winter
- y01=np.array(df01[df01.columns[1]]).astype(float) ## winter
- ka bp to years bc/ad :
x02=(1.95-x01)*1000
- print(x01)
ys1=savgol_filter(y01, 20, 2, mode='nearest')
ys2=savgol_filter(y01, 50, 2, mode='nearest')
ys3=savgol_filter(y01, 100, 2, mode='nearest')
plt.plot(x02,y01, color="#0000ff")
plt.plot(x02,ys1, color="#00007f")
plt.plot(x02,ys2, color="#ff0000")
- plt.plot(x02,ys3, color="#3f0000")
- plt.xlim((11,0))
plt.xlim((xbegin1, xend1))
plt.xlabel(xlabel1, size=20)
plt.ylabel(ylabel1, size=20)
plt.xticks(size=18)
plt.yticks(size=18)
plt.title(title1, size=24)
plt.grid()
plt.show()
- Age;Maximum_Annual_Water-Isotope_Value;;Age;Minimum_Annual_Water-Isotope_Value
Licensing edit
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 14:35, 27 December 2023 | 1,532 × 725 (151 KB) | Merikanto (talk | contribs) | Uploaded own work with UploadWizard |
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Software used | |
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Horizontal resolution | 39.37 dpc |
Vertical resolution | 39.37 dpc |