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Antti Lipponen anttilipp

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anttilipp / daylength.py
Created January 6, 2017 18:39
Python function to compute the length of the day given day of the year and latitude.
import numpy as np
def daylength(dayOfYear, lat):
"""Computes the length of the day (the time between sunrise and
sunset) given the day of the year and latitude of the location.
Function uses the Brock model for the computations.
For more information see, for example,
Forsythe et al., "A model comparison for daylength as a
function of latitude and day of year", Ecological Modelling,
1995.
@anttilipp
anttilipp / spatialresolution.sh
Created February 11, 2017 14:23
Script for generating satellite image spatial resolution test images
#!/bin/bash
#
# Script for generating spatial resolution test images
# Made by Antti Lipponen (Twitter @anttilip)
#
#
# Imagemagick and gdal used for processing
#
#
# Test cases:
@anttilipp
anttilipp / SentinelChangeTest.sh
Created February 12, 2017 18:46
A quick test script for analyzing changes in Sentinel-2 R, G, and B band satellite images
#!/bin/bash
#
# A quick test script for analyzing changes in Sentinel-2 R, G, and B bands
# Made by Antti Lipponen (Twitter @anttilip)
# 12 February 2017
#
# keywords: satellite, Sentinel-2, remote sensing, data processing, gdal, imagemagick
#
########################
@anttilipp
anttilipp / solarzenithazimuthdemo.py
Last active April 6, 2024 09:21
Demo code to compute + visualize solar zenith angle and solar azimuth angle in Python
"""
DEMO TO COMPUTE SOLAR ZENITH ANGLE
version 6 April 2017
by Antti Lipponen
Copyright (c) 2017 Antti Lipponen
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
@anttilipp
anttilipp / temperatureCircle.py
Created August 2, 2017 21:50
Code to reproduce the "Temperature Circle" visualization.
#
# Hi all,
# this is the Python code I used to make the visualization "Temperature circle"
# (https://twitter.com/anttilip/status/892318734244884480).
# Please be aware that originally I wrote this for my tests only so the
# code was not ment to be published and is a mess and has no comments.
# Feel free to improve, modify, do whatever you want with it. If you decide
# to use the code, make an improved version of it, or it is useful for you
# in some another way I would be happy to know about it. You can contact me
# for example in Twitter (@anttilip). Unchecked demo data (no quarantees)
@anttilipp
anttilipp / oceanTemperatureAnomalies.py
Created August 20, 2017 18:41
Python / matplotlib code & data to construct the sea surface temperature anomaly visualization
#
# Hi,
# this is the Python code I used to make the sea surface temperature anomaly
# visualization https://twitter.com/anttilip/status/899005930141921280.
# This is a version in which the AREA of the circle represents the temperature
# anomaly (not radius).
# The data is included in this file but I plan to write some kind of tutorial
# in the near future how the average temperatures were computed (using GDAL
# and suitable masks).
# Feel free to improve, modify, do whatever you want with this code. If you decide
@anttilipp
anttilipp / runZonalTempViz.py
Created October 22, 2017 11:12
This is the Python code I used to make the visualization # "Temperature anomalies, zonal means, 1900 - 2016"
#
# Hi all,
# this is the Python code I used to make the visualization
# "Temperature anomalies, zonal means, 1900 - 2016"
# (https://twitter.com/anttilip/status/921809347658895361).
# Please be aware that originally I wrote this just to see how this type
# of visualization would work. The code was not ment to be published
# and therefore has only a couple of/no comments and is most likely
# not written in the most optimal way.
#
@anttilipp
anttilipp / readWriteNetCDF.py
Created March 27, 2018 09:09
Demo Python script to write and read netCDF4 files
"""
DEMO TO WRITE AND READ NETCDF FILES
version 27 March 2018
by Antti Lipponen
Copyright (c) 2018 Antti Lipponen
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
@anttilipp
anttilipp / makeSnowdepthFig.py
Last active April 10, 2018 10:27
Python script to construct a snow depth figure
"""
Snow depth figure
version 6 April 2018
by Antti Lipponen
Copyright (c) 2018 Antti Lipponen
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
@anttilipp
anttilipp / Tdata.csv
Created May 19, 2020 18:13
Code and data to reproduce the temperature anomaly animation.
We can make this file beautiful and searchable if this error is corrected: It looks like row 2 should actually have 143 columns, instead of 43. in line 1.
Country,ISOA3,Continent,1880,1881,1882,1883,1884,1885,1886,1887,1888,1889,1890,1891,1892,1893,1894,1895,1896,1897,1898,1899,1900,1901,1902,1903,1904,1905,1906,1907,1908,1909,1910,1911,1912,1913,1914,1915,1916,1917,1918,1919,1920,1921,1922,1923,1924,1925,1926,1927,1928,1929,1930,1931,1932,1933,1934,1935,1936,1937,1938,1939,1940,1941,1942,1943,1944,1945,1946,1947,1948,1949,1950,1951,1952,1953,1954,1955,1956,1957,1958,1959,1960,1961,1962,1963,1964,1965,1966,1967,1968,1969,1970,1971,1972,1973,1974,1975,1976,1977,1978,1979,1980,1981,1982,1983,1984,1985,1986,1987,1988,1989,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019
"Afghanistan","AFG","Asia",-0.325,-0.160,-0.814,-0.773,-0.971,-1.133,-1.123,-0.478,0.088,-0.679,-0.617,-1.107,-0.323,-0.914,-1.006,-0.286,-0.299,-0.759,-0.959,0.192,-0.560,-0.291,0.206,-1.049,-0.403,-0.859,-0.386,-0.973,-0.615,-0.069,-0.620,-0.842,-0.251,-0.432,0.256,0.886,-0.614,-0.067,-0.513,-0.38