File:Temperature change of northern fennoscandia 1-2000 ad 2.svg
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Captions
Captions
Summary
[edit]| Description |
English: Temperature change of northern fennoscandia 1-2000 ad, tree rings and pollen data. |
||
| Date | |||
| Source | Own work | ||
| Author | Merikanto | ||
| Permission (Reusing this file) |
I, the copyright holder of this work, hereby publish it under the following licenses:
   This file is licensed under the Creative Commons Attribution-Share Alike Attribution-Share Alike 4.0 International, 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.
You may select the license of your choice. |
Source of data
https://www.ncei.noaa.gov/access/paleo-search/study/13119
NAME OF DATA SET:
Fennoscandia 7500Yr Pollen-TreeRing July Temperature Reconstructions
LAST UPDATE: 6/2012 (Original receipt by WDC Paleo)
CONTRIBUTORS: Helama, S., H. Seppä, A.E. Bjune, and H.J.B. Birks
IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2012-106
WDC PALEO CONTRIBUTION SERIES CITATION:
Helama, S., et al. 2012.
Fennoscandia 7500Yr Pollen-TreeRing July Temperature Reconstructions.
IGBP PAGES/World Data Center for Paleoclimatology
Data Contribution Series # 2012-106.
NOAA/NCDC Paleoclimatology Program, Boulder CO, USA.
ORIGINAL REFERENCE:
Helama, S., H. Seppä, A.E. Bjune, and H.J.B. Birks. 2012.
Fusing pollen-stratigraphic and dendroclimatic proxy data
to reconstruct summer temperature variability during
the past 7.5 ka in subarctic Fennoscandia.
Journal of Paleolimnology, Vol. 48, No. 1, June 2012, pp. 275-286.
DOI: 10.1007/s10933-012-9598-1
Python3 code to visualize processed data
- drawing climate data diagram in python 3
- version 4000.0004
- 3.12.2022
-
import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
from scipy import interpolate
from matplotlib.ticker import (MultipleLocator, AutoMinorLocator)
import scipy.signal
import matplotlib.colors as colors
import math as math
- datafilename="fennoscandia1a.csv"
datafilename="fennoscandia1b.csv"
captioni="Temperature of July, Northern Fennoscandia: ~66°-70°N, ~14°-35°E"
savename="fennoscandia_1b.svg"
- beginx=1800
- endx=1950
- beginx=50
- endx=300
- beginx=50
- endx=1950
beginx=0
endx=2000
- beginx=1000
- endx=1950
- beginx=1800
- endx=1950
beginy=7
endy=-4
figsizex=19
figsizey=7
yearspan=int(math.fabs(endx-beginx))
dfin0=pd.read_csv(datafilename, sep=";")
s1='Year'
s2='TJuly'
lst1=[s1, s2]
dfin1 = dfin0[dfin0.columns.intersection(lst1)]
x0=dfin1[s1]
y0=dfin1[s2]
x=np.array(x0)
y=np.array(y0)
- print (y)
- quit(-1)
size0=14
size1=16
size2=18
size3=22
x_sm = np.array(x)
y_sm = np.array(y)
x_smooth = np.linspace(beginx,endx, yearspan*10)
funk1 = interpolate.interp1d(x_sm, y_sm, kind="cubic")
y_smooth = funk1(x_smooth)
y_savgol1 = scipy.signal.savgol_filter(y_smooth,11, 3)
y_savgol2 = scipy.signal.savgol_filter(y_smooth,501, 3)
- a=np.outer(np.ones(2),y_smooth)
a=np.outer(np.ones(2),y_savgol2)
cmap1="RdBu"
cmap1="hsv"
cmap1="seismic"
cmap1="bwr"
clam1="coolwarm1"
print (type(cmap1))
- fig=plt.gca()
- plt.figure(figsize=(figsizex, figsizey))
plt.rcParams["figure.figsize"] = [figsizex, figsizey]
- plt.imshow(a,aspect='auto', cmap=cmap1, extent=[beginx, endx,-50,-30], alpha=0.5)
plt.imshow(a,aspect='auto', cmap=cmap1, extent=[beginx, endx,endy,beginy], alpha=0.5)
- plt.imshow(a,aspect='auto', cmap=cmap1, vmin=endy-0, vmax=beginy+0, extent=[beginx, endx,endy,beginy], alpha=0.5)
- plt.xlim(beginx, endx)
- plt.ylim(endy, beginy)
plt.xlim([beginx, endx])
plt.plot(x, y, color="#7f0000", alpha=1.0, linewidth=1)
- plt.plot(x_smooth, y_savgol1, color="#0000ff", alpha=0.33, linewidth=1)
- plt.plot(x_smooth, y_savgol2, color="#0000ff", linewidth=2)
plt.title(captioni, fontsize=size3, color="#0000af")
plt.xlabel('Year AD', color="darkgreen", fontsize=21)
plt.ylabel('T July', color="darkgreen", fontsize=21)
plt.locator_params(axis='x', nbins=10)
plt.xticks(fontsize=17)
plt.yticks(fontsize=17)
- plt.gca().invert_xaxis()
- mng = plt.get_current_fig_manager()
- mng.window.state('zoomed')
plt.savefig('figure.svg')
plt.show()
Licensing
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- 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.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:27, 4 December 2022 | | 1,516 × 630 (84 KB) | Merikanto (talk | contribs) | matonen |
| 13:37, 3 December 2022 |  | 1,516 × 630 (199 KB) | Merikanto (talk | contribs) | Uploaded own work with UploadWizard |
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