sunshine hours

April 10, 2018

Big increase is Antarctic Snowfall

Filed under: Antarctic,Snowfall — sunshinehours1 @ 2:38 PM
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“When scientists looked at Antarctic snowfall over the past 200 years they found a “significant” increase, up to 10%.

In the decade 2001-2010, some 272 billion tons more snow fell on Antarctica per year compared with the decade 1801-1810.

This extra amount of snow is equivalent to twice the water volume of the Dead Sea, on a per year basis.”

Big increase is Antarctic Snowfall helps to prevent sea level rise

 

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September 19, 2017

Snow Graphs From the Rutgers Snow Lab

Filed under: Mockery,Snowfall — sunshinehours1 @ 9:11 PM
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These graphs are NH only.

Its a pity Rutgers graphing script can’t spell Hemisphere.

But …

Fall up 1,500,000 sq km

Winter up 900,000 sq km

Spring down 3,000,000

https://climate.rutgers.edu/snowcover/index.php

 

January 30, 2016

Northern Hemisphere Snow Water Equivalent Above Normal All Year … except

Filed under: Canada,Environment Canada Data,Snowfall — sunshinehours1 @ 9:58 AM
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Northern Hemisphere Snow Water Equivalent above normal all year … except for the day all the snow melted (and then came back).

nh_swe

June 2, 2015

British Columbia Canada Tmax – Missing Data April 2015

Filed under: British Columbia,Canada,Environment Canada Data,Snowfall — sunshinehours1 @ 11:50 AM
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This a followup to this post: British Columbia Canada Tmax , Tmin and Tmean from 1873 (On 1×1 Grid)

The following map shows which stations were missing (or not missing) daily Tmax data in the monthly summary for April 2015.

Blue had 0-3 days missing. Red more than 3. What saddens me is that 19 out of the 43 “red” stations were also “Normals” – which means they were reference stations.

Canada Monthly Summary Analysis - Missing Tmax Data - April 2015

 

 

June 1, 2015

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

This a followup to this post: British Columbia Canada Tmax , Tmin and Tmean from 1873 (On 1×1 Grid)

The following maps show which grid cells (apprximately) had data in a few key years.

Canada Monthly Summary Analysis MAP - 1873 to 2015 - Tmax - 1x1 Grid - BC 2010 Canada Monthly Summary Analysis MAP - 1873 to 2015 - Tmax - 1x1 Grid - BC 1980 Canada Monthly Summary Analysis MAP - 1873 to 2015 - Tmax - 1x1 Grid - BC 1950

Canada Monthly Summary Analysis MAP - 1873 to 2015 - Tmax - 1x1 Grid - BC 1940

Canada Monthly Summary Analysis MAP - 1873 to 2015 - Tmax - 1x1 Grid - BC 1900

May 31, 2015

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

Filed under: Alberta,Canada,Environment Canada Data,Snowfall — sunshinehours1 @ 12:16 PM
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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

Canada Monthly Summary Analysis - 1873 to 2015 - Tmax - 1x1 Grid - AB

Tmin

Canada Monthly Summary Analysis - 1873 to 2015 - Tmin - 1x1 Grid - AB

Tmean

Canada Monthly Summary Analysis - 1873 to 2015 - Tmean - 1x1 Grid - AB

Click for larger:

 

 

 

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

Filed under: Canada,Environment Canada Data,Snowfall — sunshinehours1 @ 10:45 AM
Tags: , ,

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

Canada Monthly Summary Analysis - 1873 to 2015 - Tmax - 1x1 Grid - BC

Tmin

Canada Monthly Summary Analysis - 1873 to 2015 - Tmin - 1x1 Grid - BC

Tmean

Canada Monthly Summary Analysis - 1873 to 2015 - Tmean - 1x1 Grid - BC

 

May 7, 2015

British Columbia Canada ‘Normals’ From 1998

Filed under: Canada,Environment Canada Data,Snowfall — sunshinehours1 @ 6:28 PM
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Using Environment Canada’s monthly summaries.

And selecting stations with ‘Normals’ (anomalies from 1981 – 2010) and 90% of the datapoints.

BC Stations Anomaly 1998 - 2015_pg1

BC Stations Anomaly 1998 - 2015_pg2

BC Stations Anomaly 1998 - 2015_pg3

BC Stations Anomaly 1998 - 2015_pg4 BC Stations Anomaly 1998 - 2015_pg5

BC Stations Anomaly 1998 - 2015_pg6

BC Stations Anomaly 1998 - 2015_pg7

BC Stations Anomaly 1998 - 2015_pg8

Canada is Cooling Since 1998 at -0.279C/Decade

Filed under: Canada,Environment Canada Data,Snowfall — sunshinehours1 @ 8:53 AM
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If you take Environment Canada’s monthly summaries from 1998 to April 2015.

Use only the station with pre-calculated Normals  (anomalies from 1981-2010 avg).

Average them on a 1×1 grid and then graph the data:

Canada Monthly Summary Analysis - 1998 to 2015 - 'Normals' Anomaly - 1x1 Grid - All Provinces

October 5, 2014

Snowfall in Canada September 2014

Filed under: Canada,Environment Canada Data,Snowfall — sunshinehours1 @ 8:52 AM
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Map of snowfall in Canada for September 2014 from Environment Canada’s monthly summaries.

The size of the black dot in the top left corner represents 100cm of snow. MOUNTAIN VIEW VILLAGE got 80cm in September. Top 10 list is below.

Click for bigger.

EC Canada Snowfall September 2014

Prov Stn_Name Snow(cm) Lat Long
AB MOUNTAIN VIEW VILLAGE 80 49.132 -113.594
NU ALERT UA 77.8 82.5 -62.333
AB KANANASKIS 60.6 51.028 -115.035
AB WILDCAT HILLS 34 51.269 -114.721
AB CALGARY INTL A 28.2 51.123 -114.013
AB OKOTOKS 19.6 50.729 -113.961
NU BAKER LAKE A 17.8 64.299 -96.078
BC FORT ST. JOHN A 15.6 56.238 -120.74
NU RANKIN INLET A 15.4 62.811 -92.115
AB BRULE BLACK CAT 15.2 53.35 -117.867
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