Comments for Bob Tisdale - Climate Observations

Comment on GISS and NCDC Monthly Global Surface Temperature Update for April 2013 by Dan Pangburn

Dan Pangburn — Fri, 24 May 2013 16:24:51 +0000

Natural Climate change has been hiding in plain sight

http://climatechange90.blogspot.com/2013/05/natural-climate-change-has-been.html

Comment on Hurricane Main Development Region Sea Surface Temperatures & Anomalies – Plus a Couple of Other Regions by Bob Tisdale

Bob Tisdale — Fri, 24 May 2013 08:38:40 +0000

Hi Joe: I always look on the NESDIS maps with a little bit of skepticism, because they exclude daytime observations. That tends to give them a warmer appearance. I discussed the NESDIS maps here:
http://bobtisdale.wordpress.com/2009/09/02/a-note-about-sst-anomaly-maps/

As of last week (the week centered on the 15th), the Reynolds OI.v2 SST anomalies (which include daytime and nighttime observations) for the Gulf were still very low at -1.19 deg C. They may have warmed since then though, but the weekly data for this week won’t be available until Monday the 27th.

Regards

Comment on Hurricane Main Development Region Sea Surface Temperatures & Anomalies – Plus a Couple of Other Regions by Joseph Bastardi

Joseph Bastardi — Fri, 24 May 2013 02:17:36 +0000

Bob

there is a major warm loop current this year in the eastern gulf and it will warm that area. The east coast temps are very close to the years when they get hit. In fact temps are much above normal off the ne coast. Here is the latest sst, showing the rapid warming in the eastern gulf as much of the cooling was shallow caused by the nw flow that we had for much of april into may. I am sure the water will warm. Take special note along the east coast, thx Joe

http://www.ospo.noaa.gov/data/sst/anomaly/2013/anoma.5.23.2013.gif

Comment on Revised Post – On Foster and Rahmstorf (2011) by Tisdale takes on Tamino’s Foster & Rahmstorf 2011 | Watts Up With That?

Thu, 23 May 2013 19:50:20 +0000

[…] have reissued the ENSO-related portion of the post herewith a number of additions. If Anthony Watts cross posts the new version at WattsUpWithThat, I’ll […]

Comment on SkepticalScience Now Argues Against Foster & Rahmsorf (2011) by These items caught my eye – 22 May 2013 | grumpydenier

These items caught my eye – 22 May 2013 | grumpydenier — Wed, 22 May 2013 15:21:45 +0000

[…] Click here to read the full article _____________________________________________ […]

Comment on Mid-May 2013 Sea Surface Temperature Anomaly Update by Green Sand

Green Sand — Tue, 21 May 2013 14:42:54 +0000

Thanks Bob!

Comment on Mid-May 2013 Sea Surface Temperature Anomaly Update by Bob Tisdale

Bob Tisdale — Tue, 21 May 2013 13:16:00 +0000

Green Sand: The differences between the BOM and NOAA classifications of El Nino and La Nina conditions have existed for as long as I’ve known.

Comment on Mid-May 2013 Sea Surface Temperature Anomaly Update by Green Sand

Green Sand — Tue, 21 May 2013 12:13:44 +0000

Hi Bob, many thanks for the update. I note “not reached the threshold of a La Niña (-0.5 deg C).”

Do you know if the BOM have widened their La Nina/El Nino thresholds? Or has there always been a difference? Would appreciate your comments. TIA

The following has just been posted by ukphonta at BH:-

“Climate Model Summary
http://www.bom.gov.au/climate/ahead/model-summary.shtml#tabs=Pacific-Ocean

‘The following graph shows the average forecast value of NINO3.4 for each international model surveyed for the selected calendar month. If the bars on the graph are approaching or exceeding the blue dashed line, there is an increased risk of La Niña. Similarly, if the bars on the graph are approaching or exceeding the red dashed line, there is an increased chance of El Niño.’

Lines set at +/-0.8C

‘NINO3.4 and other indices

The National Climate Centre (NCC) uses the “NINO3.4 index” to classify ENSO conditions (see “Note:” below). The NINO3.4 index is defined as the average of SST anomalies over the region 5°N – 5°S and 170° – 120°W. NCC classifies the NINO3.4 temperature anomaly as “warm” if it exceeds 0.8°C, which is about one standard deviation above average. Similarly, anomaly predictions below –0.8°C are tabled as “cool”, with those in between classed “neutral”. There are also other “NINO” indices that refer to SST anomalies over different areas of the Pacific Ocean. The regions covered by the NINO indices are shown in this map of the tropical Pacific Ocean. ‘
http://www.bom.gov.au/climate/ahead/about-ENSO-outlooks.shtml

Comment on The Natural Warming of the Global Oceans – Videos – Parts 1 & 2 by Mid-May 2013 Sea Surface Temperature Anomaly Update | Bob Tisdale – Climate Observations

Mon, 20 May 2013 10:50:03 +0000

[…] For those who’d like a more detailed preview of Who Turned on the Heat?, see Parts 1 and 2 of the video series The Natural Warming of the Global Oceans. […]

Comment on Everything You Ever Wanted to Know about El Niño and La Niña… by Mid-May 2013 Sea Surface Temperature Anomaly Update | Bob Tisdale – Climate Observations

Mon, 20 May 2013 10:49:59 +0000

[…] Turned on the Heat? was introduced in the blog post Everything You Ever Wanted to Know about El Niño and La Niña… …Well Just about Everything. The Updated Free Preview includes the Table of Contents; the […]