Publications by Steven Mosher
RomanM’s Method
I’ve succeeded in getting a version of RomanM and JeffId’s Thermal hammer working with version 1.3 of RghcnV3. This is going to be a long post because there is a lot of ground to cover. First, some errata, the “Globe” demo in V1.3 appears to have a missing line, looks like an editor bug, so I will have to push 1.4 to CRAN. CRAN has not be...
5357 sym R (3388 sym/2 pcs) 20 img
Nick Stoke’s Improvements
Fast on the heels of getting RomanM’s code up and running in RghcnV3, Nick Stokes whipped out a version of his approach which he covered on his blog here: We exchanged code and few mails thrashing through details and I’m now in a position to start the integration work of his approach into Rghcnv3. In addition to providing a new method Nick ...
4557 sym 16 img
Forking Myself
I’ve spent some time forking myself. Over the past few days when I could steal away an hour here or there I decided to make a big change to the package. But it’s a good change. First some book-keeping. The Romantest.R file has a minor bug in it. Not really a bug, I just pulled out the wrong statistic from the brick ” cellStats(..,sum), ...
3997 sym R (1652 sym/1 pcs) 16 img
CRU Data in RghcnV3
As many have noted CRU have posted their data a bit ago and the usual gang has started to put it through the various “engines” for calculating a global temperature index. Thanks to others who worked this problem ahead of me getting the data in Rghcnv3 was not that hard, but it was not without it’s challenges given the format. On the CRU sit...
2948 sym 18 img
CHCN: Canadian Historical Climate Network
A reader asked a question about data from environment canada. He wanted to know if that data could somehow be integrated into the RGhcnV3 package. That turned out to be a bit more challenging that I expected. In short order I’d found a couple other people who had done something similar. DrJ of course was in the house with his scrape...
4397 sym R (240 sym/1 pcs) 16 img
RghcnV3 2.0
Well, version 2.0 is in the can and I’ll be uploading to CRAN over the next couple of days. Lets go over the highlights. Prior to version 2.0 we had basically 3 kinds of data flowing around the package: V3 14 column format, zoo objects and mts objects. The 14 column format has always been a PITA and much of the code was designed to provide wa...
3013 sym 16 img
Forbush events
As noted here there is a new paper linking Forbush events with changes in DTR. Simply, during a Forbush event cosmic rays are modulated ( the flux reaching the earth decreases. The theory goes something like this. If GCRs play a role in cloud formation, then when they decrease you should be able to detect an decrease in cloudiness or conversel...
2153 sym 22 img
rgdal + raster + RCurl = My next package
This package has been a long time in the making. In the end it’s more of a data package than a functional package, but pulling all the pieces together required me to learn some really cool packages: raster ( which I already knew ) rgdal and RCurl. I’ll provide a littel bit of an overview of what comes together on this package and why I bu...
4577 sym 16 img
Climate Reference Network: package crn 1.0
I’ve just finished and uploaded another climate data package for R. This one focuses on CRN the climate Reference Network Here is their home page The package for now is really simple, but all of the packages I’m building are getting simpler. In the end ( whenever that is ) I think I’ll end up with a host of packages that manage the dow...
4189 sym 18 img
Berkeley Earth Surface Temperature: V1.5
My R package designed to import all of the Berkeley Earth Surface temperature data is officially on CRAN, as BerkeleyEarth. The version there is 1.3 and I’ve completed some testing with the help of David Vavra. The result of that is version 1.5 which is available here at the drop box. I’ll be posting that to CRAN in a bit. For anyone who ...
8859 sym 16 img