Tag Archives: v2.inv

Another look at NASA Gistemp

Publishing this post now in advance of completion to have it available in another post. More details of the companion KML file to be added. I started this blog in 2010, discussing shortcomings in the station location metadata used in … Continue reading

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GHCN and Gistemp Data Quality

Post to be completed when the post Self-adjusting the Adjustments is complete. Posted now as placeholder to allow linkage from previous post. Location metadata   Temperature data

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Urban corrections in Gistemp (and GHCN-M), “then and now”

Further content coming soon. This placeholder post published now to allow a link to the coming post to be included in an online comment. Hansen et al. 1999 (Hansen, J., R. Ruedy, J. Glascoe, and M. Sato, 1999: GISS analysis … Continue reading

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As completion of this post was long delayed, I’m posting the discussion part separately here as an ‘aside’ post so that it will show up as a new post for anyone who has given up waiting. The most striking aspect … Continue reading

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A few more GHCN problems

GHCN monthly data (v2 or v3) may not always be quite what it seems. Consider Nitchequon (Canada: 40371826000), looking here at the five individual time series in GHCN v2: Some missing years – but where’s the problem?

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GISTEMP change to use GHCN v3

The initial GISTEMP steps are described in gistemp.txt in the new GISTEMP (v3) source:

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GHCN v3 station location metadata – a “report card”

Just over two years ago, when notifying NASA Goddard (GISTEMP) of errors in station coordinates in their v2.inv file, derived from the corresponding GHCN file, I also contacted Russell Vose at NOAA directly, rather than assuming he would be contacted … Continue reading

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Are you acquainted with any of these GHCN stations?

The quality of GHCN metadata, in particular the latitude and longitude coordinates of stations, remains unsatisfactory. In fact the transition from v2 to v3 might suggest that renaming might be in order – judging by the nature of the metadata … Continue reading

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GHCN Metadata (v2.inv), Gistemp and Night light Radiance

The draft journal article “Current GISS Global Surface Temperature Analysis” posted at http://data.giss.nasa.gov/gistemp/paper/gistemp2010_draft0319.pdf provides a link to the nightlight radiance data set [Imhoff et al., 1997] used [http://www.ngdc.noaa.gov/dmsp/download_rad_cal_96-97.html] (measurements made between March 1996 and February 1997)] at a resolution of 30″ x 30″.

While I was unable to simultaneously view the terrain detail and the NASA nightlight layer which comes with Google Earth, the nightlight radiance data from the TIFF files in this data set can be added to the Google Earth tours described in my earlier post. Continue reading

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Night light radiance from v2.inv as CSV

As requested in comments to the previous post. This is a very long data post, providing radiance data from v2.inv in comma separated form.

Copy and paste:

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