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co2-ppm-daily-flow.py
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co2-ppm-daily-flow.py
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import datetime
import os
import urllib.request
from dataflows import PackageWrapper, ResourceWrapper, Flow, dump_to_path
def get_all_data():
all_years = {}
# first source containing info from 01.01.1958 to 2004
header = True
resource = urllib.request.urlopen('http://scrippsco2.ucsd.edu/assets/data/atmospheric/stations/in_situ_co2/daily/'
'daily_in_situ_co2_mlo.csv')
for row in resource.readlines():
usable_row = row.decode('utf-8').replace('\n', '')
parts = usable_row.split(',')
if not usable_row.startswith('%'):
header = False
if not header:
date = parts[0].strip()+'-'+parts[1].strip()+'-'+parts[2].strip()
value = parts[3].strip()
if 'NaN' not in value:
date = datetime.datetime.strptime(date, '%Y-%m-%d')
all_years[date] = value
# second source containing info from 01.01.1973 - 31.12.2017
header = True
req = urllib.request.Request('ftp://aftp.cmdl.noaa.gov/data/trace_gases/co2/in-situ/surface/mlo/'
'co2_mlo_surface-insitu_1_ccgg_DailyData.txt')
resource = urllib.request.urlopen(req, timeout=7200)
for row in resource.readlines():
usable_row = row.decode('utf-8').replace('\n', '')
if not usable_row.startswith('#'):
parts = usable_row.split(' ')
if header:
header = False
else:
date = parts[1] + '-' + f"{int(parts[2]):02d}" + '-' + f"{int(parts[3]):02d}"
value = None if '-999.99' in parts[7] else parts[7]
if value is not None:
date = datetime.datetime.strptime(date, '%Y-%m-%d')
all_years[date] = value
all_years = sorted(all_years.items())
for date, value in all_years:
yield dict(
date=date.strftime("%Y-%m-%d"),
value=value
)
def get_only_2018_and_on():
all_years = {}
header = True
for row in open('data/co2-ppm-daily.csv'):
usable_row = row.replace('\n', '')
parts = usable_row.split(',')
if header:
header = False
else:
date = parts[0]
value = parts[1]
if value is not '':
date = datetime.datetime.strptime(date, '%Y-%m-%d')
all_years[date] = value
# third source containing info from 2017 until today
header = True
resource = urllib.request.urlopen('https://www.esrl.noaa.gov/gmd/webdata/ccgg/trends/co2_mlo_weekly.csv')
for row in resource.readlines():
usable_row = row.decode('utf-8').replace('\n', '')
parts = usable_row.split(',')
if header:
header = False
else:
date = parts[0]
value = parts[1]
if value is not '':
date = datetime.datetime.strptime(date, '%Y-%m-%d')
all_years[date] = value
all_years = sorted(all_years.items())
for date, value in all_years:
yield dict(
date=date.strftime("%Y-%m-%d"),
value=value
)
def change_path(package: PackageWrapper):
package.pkg.descriptor['title'] = 'CO2 PPM - Trends in Atmospheric Carbon Dioxide'
package.pkg.descriptor['name'] = 'co2-ppm-daily'
package.pkg.descriptor['resources'][0]['path'] = 'data/co2-ppm-daily.csv'
package.pkg.descriptor['resources'][0]['name'] = 'co2-ppm-daily'
package.pkg.descriptor['views'] = []
view = {
"specType": "vega",
"resources": [
{
"name": "co2-ppm-daily",
"transform": []
}
],
"spec": {
"$schema": "https://vega.github.io/schema/vega/v3.json",
"width": 900,
"height": 400,
"padding": 30,
"data": [
{
"name": "co2-ppm-daily",
"format": {"parse": {"date": "date"}},
"transform": [
{"type": "extent", "field": "value", "signal": "extent"}
]
}
],
"scales": [
{
"name": "xscale",
"type": "utc",
"range": "width",
"domain": {"data": "co2-ppm-daily", "field": "date"}
},
{
"name": "yscale",
"type": "linear",
"range": "height",
"nice": True,
"zero": False,
"domain": {"data": "co2-ppm-daily", "field": "value"}
}
],
"axes": [
{
"orient": "bottom",
"scale": "xscale",
"labelFont": "Lato",
"format": "%b %Y",
"domain": False,
"ticks": False
}
],
"marks": [
{
"type": "area",
"from": {"data": "co2-ppm-daily"},
"encode": {
"enter": {
"x": {"scale": "xscale", "field": "date"},
"y": {"scale": "yscale", "field": "value"},
"y2": {"scale": "yscale", "signal": "floor(extent[0])"},
"fill": {"value": "#FBE7E8"},
"stroke": {"value": "#E3B3BD"}
}
}
},
{
"type": "text",
"encode": {
"enter": {
"text": {"signal": "extent[1] + ' PPM'"}
},
"update": {
"x": {"value": -94},
"font": {"value": "Lato"},
"fontSize": {"value": 16},
"opacity": {"value": 0.4}
}
}
},
{
"type": "text",
"encode": {
"enter": {
"text": {"signal": "extent[0] + ' PPM'"}
},
"update": {
"x": {"value": -94},
"y": {"value": 385},
"font": {"value": "Lato"},
"fontSize": {"value": 16},
"opacity": {"value": 0.4}
}
}
},
{
"type": "text",
"encode": {
"enter": {
"text": {"signal": "extent[1] + ' PPM'"}
},
"update": {
"x": {"value": 910},
"font": {"value": "Lato"},
"fontSize": {"value": 16},
"opacity": {"value": 0.4}
}
}
},
{
"type": "text",
"encode": {
"enter": {
"text": {"signal": "extent[0] + ' PPM'"}
},
"update": {
"x": {"value": 910},
"y": {"value": 385},
"font": {"value": "Lato"},
"fontSize": {"value": 16},
"opacity": {"value": 0.4}
}
}
}
]
}
}
package.pkg.descriptor['views'].append(view)
yield package.pkg
res_iter = iter(package)
first: ResourceWrapper = next(res_iter)
yield first.it
yield from package
if os.path.exists('data/co2-ppm-daily.csv'):
co2_ppm_daily = Flow(get_only_2018_and_on(), change_path, dump_to_path())
else:
co2_ppm_daily = Flow(get_all_data(), change_path, dump_to_path())
if __name__ == '__main__':
co2_ppm_daily.process()