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@@ -2,7 +2,7 @@ Package: GSODR | |
Type: Package | ||
Title: Download, Clean and Generate New Variables from GSOD Data | ||
Version: 0.1.6 | ||
Date: 2016-05-22 | ||
Date: 2016-05-26 | ||
Authors@R: c(person("Adam", "Sparks", role = c("aut", "cre"), | ||
email = "[email protected]"), | ||
person("Tomislav", "Hengl", role = "ctb", | ||
|
@@ -28,27 +28,22 @@ Description: Download, clean, reformat and create new variables from the | |
omitted. Also omitted are stations with a latitude of < -90 or > 90 or | ||
longitude of < - 180 or > 180. Output is returned as a comma-separated | ||
values (CSV) file written to disk in a location selected by the user, which | ||
summarises each year by station and includes new variables: actual and | ||
saturation vapor pressure and relative humidity calculated from the original | ||
GSOD data. The resulting files can be as large as 500mb depending on the | ||
user's stringency for missing data and geographic area of interest. Be sure | ||
to have sufficient RAM and disk space as well as a reasonably fast internet | ||
connection to use this package to perform this operation. However, for much | ||
smaller and more manageable data sets, an individual country of interest may | ||
be selected as well as only stations falling between -60/60 degrees latitude | ||
for agroclimatology work. The resulting files include station data (e.g., | ||
station name, country, latitude, longitude, elevation) for use in a | ||
geographic information system (GIS). The function was largely based on | ||
T. Hengl's 'getGSOD.R' script, available from | ||
summarises each year by station and includes new variables: actual vapor | ||
pressure, saturation vapor pressure and relative humidity are calculated | ||
from the original GSOD data. The resulting files can be as large as 500mb | ||
depending on the user's stringency for missing data and geographic area of | ||
interest. Be sure to have sufficient RAM and disk space as well as a | ||
reasonably fast internet connection to use this package to perform this | ||
operation. However, for much smaller and more manageable data sets, an | ||
individual country of interest may be selected as well as only stations | ||
falling between -60/60 degrees latitude for agroclimatology work or | ||
individual stations if the station ID is known. The resulting files include | ||
station data (e.g., station name, country, latitude, longitude, elevation) | ||
for use in a geographic information system (GIS). The function was largely | ||
based on T. Hengl's 'getGSOD.R' script, available from | ||
<http://spatial-analyst.net/book/system/files/getGSOD.R> with enhancements | ||
to be more cross-platform, faster and more flexible. Currently flags are | ||
maintained for all of the columns except for MIN/MAX. In the original | ||
MIN/MAX columns of the GSOD data, "blank indicates max temp was taken from | ||
the explicit max temp report and not from the 'hourly' data. * indicates max | ||
temp was derived from the hourly data (i.e., highest hourly or | ||
synoptic-reported temperature).", GSOD readme.txt | ||
<http://www1.ncdc.noaa.gov/pub/data/gsod/readme.txt>. For CSV files | ||
resulting from GSODR the flags are stripped. | ||
to be more cross-platform, faster and more flexible. See the GSOD readme.txt | ||
<http://www1.ncdc.noaa.gov/pub/data/gsod/readme.txt>. | ||
Depends: | ||
R (>= 3.0.0) | ||
License: GPL (>= 3) | ||
|
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