May 2015 – sunshine hours

Alberta Canada Tmax , Tmin and Tmean from 1873 (On 1×1 Grid) – It Was 2C Warmer in the 1940s

Published on May 31, 2015May 31, 2015 by sunshinehours12 Comments

This is the Alberta followup the BC post. You can read the explnations.

In the terms of Tmax the coldest period in Alberta (using 5 year means) was 1972-1976.

The warmest period was 1940 – 1944. In fact it was 2C warmer in 1940-1944 than 2011 – 2015. (The 1930s were just slightly cooler than the early 40s)

You may ask why the green line of grid counts goes up and down so much. It appears there are many more stations reporting in May/Jun/Jul/Aug/Sep than in the winter.

Tmax

Tmin

Tmean

Click for larger:

British Columbia Canada Tmax , Tmin and Tmean from 1873 (On 1×1 Grid)

Published on May 31, 2015 by sunshinehours15 Comments

Step 1: Use Data from Environment Canada’s monthly summaries.

Step 2: Summarize the data by 1×1 grid square so no region dominates.

Step 3: Graph Tmax, Tmin and Tmean.

The black line is the monthly data. The blue boxes contain the 5 year mean (and I set the 5 year period by just going back from the most recent data in 5 year increments)

The green line is the number of 1×1 grid squares. The blue dashed line is the trend from 1873 (which is the earliest data).

(I won’t count the pre-1900 data as too important since there were so few stations)

Tmax was 1.5C warmer in the the 1920s/30s/40s than now.

Tmin now is the hottest its been since 1900.

Tmean in the early 40s was slightly warmer than now.

Tmean/Tmin has been warming since 1970 thanks to Tmin … not Tmax.

Click for larger:

Tmax

Tmin

Tmean

Sea Ice Extent – Day 150 – Antarctic Sets 61st Daily Record – 12th Highest Global Sea Ice For This Day

Published on May 31, 2015 by sunshinehours1Leave a comment

61st Daily Record for Antarctic – 1.4 million above the 1981-2010 mean. – Above 2 standard deviations.

12th Highest Global Sea Ice For This Day.

South / North

Sea Ice Extent – Day 148 – Antarctic Sets 59th Daily Record – 10th Highest Global Sea Ice For This Day

Published on May 29, 2015 by sunshinehours16 Comments

59th Daily Record for Antarctic – 1.4 million above the 1981-2010 mean. – Above 2 standard deviations.

10th Highest Global Sea Ice For This Day.

South / North

Sea Ice Extent – Day 147 – Antarctic Sets 58th Daily Record – 11th Highest Global Sea Ice For This Day

Published on May 28, 2015 by sunshinehours15 Comments

58th Daily Record for Antarctic – 1.4 million above the 1981-2010 mean. – Above 2 standard deviations.

11th Highest Global Sea Ice For This Day – The trend for day 147 is FLAT.

South / North

Sea Ice Extent – Day 146 – Antarctic Sets 57th Daily Record – 11th Highest Global Sea Ice For This Day

Published on May 27, 2015 by sunshinehours11 Comment

57th Daily Record for Antarctic – 1.43 million above the 1981-2010 mean. – Above 2 standard deviations.

11th Highest Global Sea Ice For This Day

South / North

Nanaimo Tmax from 1947 to 2015

Published on May 25, 2015May 25, 2015 by sunshinehours16 Comments

Every once in a while I visit the data for the weather station closest to my hometown on the west coast of Canada.

Today I am looking at daily TMAX data from Nanaimo Airport (1947 – 2015).

1987 was the warmest year (1958 was 2nd warmest FYI) . 1955 was the coldest They are shown as the orange and blue lines.

Here I have graphed all the available data in the style I usually use for Sea Ice data.

2015 is in red. There are gaps because Environment Canada doesn’t seem to care.

Notice that temps can fluctuate by 20C for the same day in different years.

Ponder this … why can we humans (and crops and animals) adapt to 20C swings but we can’t adapt to a 1C change over 100 years?

Click graph for larger.

Update: I added Tmin

Sea Ice Extent – Day 144 – Antarctic Sets 55th Daily Record – 8th Highest Global Sea Ice For This Day

Published on May 25, 2015 by sunshinehours18 Comments

8th Highest Global Sea Ice For This Day

55th Daily Record for Antarctic – 1.45 million above the 1981-2010 mean. – Above 2 standard deviations.

Data: South / North

Sea Ice Extent – Day 143 – 7th Highest Global Sea Ice For This Day – Antarctic Sets 54th Daily Record For 2015

Published on May 24, 2015May 24, 2015 by sunshinehours11 Comment

7th Highest Global Sea Ice For This Day – Above one standard deviation.

54th Daily Record for Antarctic – 1.45 million above the 1981-2010 mean. – Above 2 standard deviations.

Data: South / North

MASIE May 24 2015 – Arctic Ice Extent By Region As of Day 143

Published on May 24, 2015 by sunshinehours1Leave a comment

May 24 2015 MASIE Update (Arctic Sea Ice dataset frm MASIE )

Region	63 days ago	End	Last 62	Last 28	Last 14	Last 7	Last 3	Last 1
Greenland Sea	633,474	623,435	-10,039	9,939	18,262	7,720	-43,315	-20,991
Baffin Bay Gulf of St. Lawrence	1,754,107	1,156,779	-597,328	-352,739	-84,695	-44,320	-65,310	-16,182
East Siberian Sea	1,087,137	1,086,072	-1,065	-1,065	-1,065	-1,065	-1,065	0
Laptev Sea	897,845	876,307	-21,538	-21,414	-21,538	-21,538	-21,538	0
Kara Sea	935,023	873,717	-61,306	-57,452	-47,822	-25,956	-41,394	0
Barents Sea	596,771	410,199	-186,572	32,878	3,309	72,492	3,962	0
Central Arctic	3,247,614	3,238,792	-8,822	5,310	-8,045	1,524	0	0
Baltic Sea	9,702	0	-9,702	-8,302	-66	-66	0	0
Sea of Okhotsk	551,895	141,133	-410,762	-265,747	-86,340	-38,986	-44,623	0
Yellow Sea	0	0	0	0	0	0	0	0
Beaufort Sea	1,070,445	1,008,963	-61,482	-51,817	-61,482	-24,465	-15,786	488
Canadian Archipelago	853,214	834,122	-19,092	-19,093	-19,093	222	-12,992	745
Hudson Bay	1,260,903	1,099,013	-161,890	-146,581	-160,366	-76,940	-40,997	1,097
Bering Sea	667,281	100,546	-566,735	-481,419	-167,721	-53,100	-49,385	2,160
Chukchi Sea	966,006	924,333	-41,673	-41,673	-40,372	-5,712	-4,642	27,764

Northern Hemisphere (Total)	14,534,052	12,374,938	-2,159,114	-1,399,587	-677,030	-210,094	-337,085	-4,920

NH (Average Loss per Day)			-34,272	-49,985	-48,359	-30,013	-112,362	-4,920