Archives for posts with tag: WMO

I mentioned the decision process for the dataset ds570.0 in a previous post. Today I would like to introduce the dataset a little further. I also made some first steps with the package lattice for plotting, and will show the results of that. From the dataset website:

World Monthly Surface Station Climatology, 1738-cont

This world monthly surface station climatology has data for over 4700 different stations (2600 in more recent years). Data for some stations goes as far back as the mid-1700’s. See decedal coverage for more detail. Most of the data was obtained directly from the National Climatic Data Center (NCDC), Asheville, North Carolina. However, much of the data prior to 1951 came from John Wolbach of Harvard College Observatory, who contracted to have this data key entered at NCDC. The first six months of 1961 were key entered at NCAR. Sharon Nicholson, Florida State University, provided African precipitation data to extend the records of over 250 stations. Dennis Shea, NCAR/CGD, has been a valuable source for data obtained directly from various countries.

Check out the detailed information if you want to know more. I took the following graphic from that page, showing the land stations’ positions (also available as a KML file):
Read the rest of this entry »

The ClimateSOS will use offerings to give the data some structure, and a regional subdivision seems like the natural choice. But as the subset format of ds570.0 does not contain this kind of information, I had to look elsewhere. Luckily, the dataset uses WMO Identifiers (World Meteorological Organization) for the included stations. And the WMO’s Volume A dataset contains exactly the fields that I needed, namely

But it wasn’t that simple. Read the rest of this entry »