Saturday, November 14, 2020

GISS October global down by 0.09°C from September.

The GISS V4 land/ocean temperature anomaly was 0.9°C in October 2020, down from 0.99°C in September. That compares with a 0.154deg;C fall  in the TempLS V4 mesh index. It was the fourth warmest October in the record (shared with 2017).

Jim Hansen's update, with many more details, is here. He thinks that it is likely that 2020 will equal 2016 as hottest year. For those who like that sort of thing, there is a betting market on that "horse race" here.

As usual here, I will compare the GISS and earlier TempLS plots below the jump.

Friday, November 6, 2020

October global surface TempLS down 0.153°C from September.

The TempLS mesh anomaly (1961-90 base) was 0.705deg;C in October vs 0.858°C in September. This drop was greater than the drop in the NCEP/NCAR reanalysis base index, which was 0.072°C. The UAH satellite data for the lower troposphere fell by only 0.03°C.

It was the coolest month since November 2018.

There was a cool region in Canada and central USA, and another band from Iran to China, via central Asia. Antarctica was more cool than warm. There was a big warm area across Eurasia and the adjacent Arctic, down through E Europe, Near East and into Egypt. Another warm area in central S America.

Here is the temperature map, using the LOESS-based map of anomalies.


As always, the 3D globe map gives better detail.

Wednesday, November 4, 2020

NCEP/NCAR reanalysis October 2020 surface temperature down 0.072°C from September.

The Moyhu NCEP/NCAR index came in at 0.278°C in October, following 0.35°C in September, on a 1994-2013 anomaly base. That is still the second warmest month since May.

The main warm area was the Arctic adjacent to Siberia, and also a band through East Europe and the Near East. North America was cool, and also a band through central Asia, from Iran to China. The SE Pacific was also cool.



Thursday, October 15, 2020

GISS September global up by 0.13°C from August.

The GISS V4 land/ocean temperature anomaly was 1.0°C in September 2020, up from 0.87°C in August. That compares with a 0.095deg;C rise (now 0.115°C) in the TempLS V4 mesh index. As with TempLS, it was the warmest September in the record.

As usual here, I will compare the GISS and earlier TempLS plots below the jump.

Monday, October 5, 2020

September global surface TempLS up 0.095°C from August.

The TempLS mesh anomaly (1961-90 base) was 0.837deg;C in September vs 0.742°C in August. This rise was less than the rise in the NCEP/NCAR reanalysis base index, which was 0.203°C. The UAH satellite data for the lower troposphere also rose more, by 0.14°C.

It was the warmest September in the TempLS record; next was 2016 at 0.781°C.

Again N Siberia and the adjacent Arctic Ocean was very warm. There was also warmth in the Near East, including E Mediterranean, and in Antarctica. There was a cool region in Central Asia; N America was split between a warm West and cool central and East. S America was warm.

Here is the temperature map, using the LOESS-based map of anomalies.


As always, the 3D globe map gives better detail.

Saturday, October 3, 2020

NCEP/NCAR reanalysis September 2020 global surface temperature up 0.203°C from August.

 

The Moyhu NCEP/NCAR index came in at 0.35°C in September, following 0.147°C in August, on a 1994-2013 anomaly base. The rise was enough to counter recent monthly falls, making it the warmest month since April. The temperature was fairly even during the month, with no major spikes.

The main warm regions were Siberia and the adjacent Arctic and most of Europe except the Atlantic seaboard. Greenland was cold, and much of N America except the Pacific coast. The main other cool region was the Eastern Pacific. The Antarctic was mixed.



Tuesday, September 15, 2020

GISS August global down by 0.05°C from July.

The GISS V4 land/ocean temperature anomaly was 0.85°C in August 2020, down from 0.90°C in July. That compares with a 0.049deg;C fall in the TempLS V4 mesh index. Jim Hansen's report is here, discussing how 2020 is becoming less lokely to catch 2016 as hottest year. 2020 had the fourth warmest August in the record, behind 2016, 2017 and 2019.

As usual here, I will compare the GISS and earlier TempLS plots below the jump.