western Hudson Bay polar bears still on the ice in late June
According to the tracker map provided by Andrew Derocher (University of Alberta), all of the western Hudson Bay polar bear females that still have operational satellite collars (deployed in 2019) are still out on the ice of Hudson Bay.
The Explore.org live video cam that sits on the shore of Wapusk National Park just south of Churchill has been capturing images of caribou and birds but so far, no polar bears. Last year, the first bear seen onshore by the cameras (shown in the video) was on 13 July.
It wasn’t until a month later that more bears were seen: the fat mother and cub in the screencap below were spotted on 18 July 2020 and the last of the collared bears didn’t come ashore until late August:
This year at 21 June, only 6 collars still operating but only one of them is anywhere close to shore yet (courtesy Andrew Derocher via twitter, below):
That ice in the middle of the bay is still primarily very thick first year ice, as the chart for this third week of June shows (below):
Sea ice stage of development for the week of 21 June 2021, where dark green is thick first year ice > 1.2 m thick:
Compare the tracking map above to those from previous years that I have in my archive, below. Derocher usually posts these once a week.
2020 (19 June):
2019 (29 June, a week later than this year):
2018 (24-25 June):
2015 (22 June), notice how many bears were still out on the ice by the third week of June (although two were onshore):
And here is Derocher from 1 June 2015 suggesting that 2015 might be the earliest WH breakup on record (spoiler alert, it wasn’t even close – see graph below):
From Castro de la Guardia (2017), the earliest breakup date (most bears onshore) was 9 June 1999 (middle panel):
References
Castro de la Guardia, L., Myers, P.G., Derocher, A.E., Lunn, N.J., Terwisscha van Scheltinga, A.D. 2017. Sea ice cycle in western Hudson Bay, Canada, from a polar bear perspective. Marine Ecology Progress Series 564: 225–233. http://www.int-res.com/abstracts/meps/v564/p225-233/
See more here: polarbearscience.com
Header image: Los Angeles Times
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Jerry Krause
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Hi PSI Readers,
This article is about climate and temperature but this comment has no direct relationship to what Susan wrote.
“Excessive Heat Warning
Northwest Oregon
Alert summary
…EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SATURDAY TO 11 PM PDT MONDAY. WHAT…Dangerously hot temperatures of 98 to 103 likely
temperatures loc…Expires in 3 days.” (National Weather Service)
I live in Northwest Oregon about 3 miles from where an atmospheric sounding is launched at 4am and 4pm PST each day. (http://weather.uwyo.edu/cgi-bin/sounding?region=naconf&TYPE=TEXT%3ALIST&YEAR=2021&MONTH=06&FROM=2500&TO=2512&STNM=72694&ICE=1)
This link is only supplied as a reference for only if you are really interested. I will summarize the data of which I am most interested in identifying the cause of near record (or maybe record) air temperatures as the daily maximum temperatures increases and then beginning to decrease.
Based upon previous study it seems obvious that high altitude (at the top of the local troposphere) cirrus clouds are necessary to produce extremely high air temperatures.
Yesterday afternoon, there was no evidence of any cloud from the surface to the top (more than 36km altitude) of the sounding. This morning there was evidence of high cirrus from 10km to about 13km altitude. Which top is a little bit above the base altitude of the tropopause. And scattered cirrus has been visible during this morning and early afternoon.
This high diffuse cirrus layer is seldom described as being a necessary factor needed to produce record air temperature as conventionally measured. As well as summarizing the data about the cirrus, I plan to keep you posted of the air temperature measured when each sounding is launched. Yesterday’s afternoon’s temperature was 30.2C and this morning’s was 18.8C. The relative humidity of ice is used to identify the presence, or lack, of cirrus cloud.
Have a good day, Jerry
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Jerry Krause
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Hi PSI Reader,
Yesterday afternoon (6/25) air temperature 31.8C and sounding evidence of cloud int the sounding data but visibly there was scattered cirrus, above contrails, both of which were drifting toward the west.
This morning’s (6/26) ait temperature was 20.8C and no sounding data indicating the present of cloud. The weather service at the airport from where the soundings are launched reported (totally automated system data) clear sky all day yesterday which clearly was not the case. There is wildfire occurring on the slopes of Mt. Hood about 50 miles to northeast (which I can not see this afternoon because a low level haze between our upstair window and the mountain.
But of the atmosphere and above us has been visually cloudless. But the smoke of the wildfire could become a random factor which might confuse what I expect. But the air temperature continues to rise. But I did expect more than the 2C increase of the last soundings. But I admit that I have not written down these increasing temperatures lately. What is so great about this sounding data is one can review more than 40 years of previous sounding data.
Have a good day, Jerry
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Mark Tapley
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How can this be? The Club of Rome’s Rockefeller pawn Maurice Strong and Occidental Petroleum’s CEO Zionist (((Armand Hammer’s))) shill Al Gore said 30 years ago that there would be no ice left in the arctic in ten years and that all the coastal cities would be under the water.
Like the fake virus, the elite’s are using the climate change scam to destroy the industrial economies and usher in their long planned Agenda 2030-21.
Reply
Jerry Krause
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Hi PSI Readers,
How many of you have considered when you looked at the header image of Susan’s article that the water and ice and snow is FRESH WATER and not the SALT WATER of the Hudson Bay on which this fresh water and snow is being separated by the ICE SHEET which is floating on the SALT WATER BENEATH it???
Have a good day, Jerry
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