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Here is a review of the major global temperature metrics in tabular
and graph form. There is a bit of disagreement this month. GISS still
comes out the warmest, as it did last month, and the month before, and
there is a bit of divergence between the RSS and UAH satelitte derived
datasets.
I’m a little late to this game as I’ve been busy catching up on
personal business since my trip to NCDC Asheville and 20 station survey
across North Carolina, but I thought it was worth a review.
RSS (Remote Sensing Systems of Santa Rosa, CA)
RSS Microwave Sounder Unit (MSU) global temperature anomaly data by For
April 2008 has moved a tiny bit higher, with a value of .080°C for a
change (∆T) of 0.001°C globally from March.
RSS
2008 1 -0.070
2008 2 -0.002
2008 3 0.079
2008 4 0.080
click image for a ZOOMED 1998 -2008 DATA PORTION of the 1979-2008 image
RAW RSS data is available here
Note that there does not appear to be any sustained upwards trend post 1998.
Here is the entire RSS MSU dataset plotted:
click for a larger image
Reference: RSS data here (RSS Data Version 3.1)
University of Alabama, Huntsville (UAH) published
their data set for April 2008, and it is in slight disagreement with
the RSS data, dropping with greater magnitude than RSS. The ∆T
for April 2008 was -.079°C for an anomaly value of 0.015°C
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