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gerontocrat

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Arctic Background Data Library
« on: February 22, 2018, 09:38:06 PM »
With considerable trepidation, I start a new topic.

A lot of stuff we post is of long-term interest that should be kept, but gets lost into history as the seasons change and so do the threads, I don't know about you, but my PC is cluttered up and old, I am losing stuff already. So I suggest we need a place to put it, or at least the links. The ASI graphs are already safely locked away but accessible.

I found a site today that many of you probably know
- http://sites.uci.edu/zlabe/arctic-temperatures/

It is the sort of data that is of long-term interest. An example is the 925hPa temperature history from 1958 to 2017, I had never come across before, which no doubt Zachary will keep going (automated already?)
http://sites.uci.edu/zlabe/files/2018/01/TAS_Arctic_NCEP_OctDec17_composite.gif

If you use it, please note the title "Arctic Background Data Library" - i.e. for data, not opinion. no "near human extinction" diatribes).

A brief description of the data and the link to it (external or internal within ASIF) might be all that is necessary. I will be posting a few tomorrow.

End of message
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gerontocrat

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Re: Arctic Background Data Library
« Reply #1 on: March 15, 2019, 10:27:44 AM »
Here is a report from the UN on the Arctic looking at just about everything. Available as pdf or e-book. Loads of really nice (though sometimes somewhat alarming) graphics.

http://www.grida.no/publications/431
https://gridarendal-website-live.s3.amazonaws.com/production/documents/:s_document/465/original/GlobalLinkages.pdf?1552478695
https://grid.cld.bz/Global-Linkages/2/
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

J Cartmill

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Re: Arctic Background Data Library
« Reply #2 on: April 06, 2019, 03:10:15 PM »
Watched this short video by Jason Box
https://www.youtube.com/watch?time_continue=191&v=asKIeN0pYTk
summarizing the data from the paper "Key Indicators of Arctic Climate Change: 1971-2017"

In the video he mentioned this site: Arctic Monitoring and Assessment program.
https://www.amap.no/

gerontocrat

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Re: Arctic Background Data Library
« Reply #3 on: April 10, 2019, 01:15:46 PM »
An informative paper on inflows and outflows in Baffin Bay

https://www.the-cryosphere.net/13/1025/2019/
Baffin Bay sea ice inflow and outflow: 1978–1979 to 2016–2017
Quote
Abstract
Baffin Bay serves as a huge reservoir of sea ice which would provide the solid freshwater sources to the seas downstream. By employing satellite-derived sea ice motion and concentration fields, we obtain a nearly 40-year-long record (1978–1979 to 2016–2017) of the sea ice area flux through key fluxgates of Baffin Bay. Based on the estimates, the Baffin Bay sea ice area budget in terms of inflow and outflow are quantified and possible causes for its interannual variations and trends are analyzed. On average, the annual (September–August) inflows through the northern gate and Lancaster Sound are on the order of 205.8(±74.7)×103 km2 and 55.2(±17.8)×103 km2. In particular, a comparison with published results seems to suggest that about 75 %–85 % of the inflow through the northern gates is newly formed ice produced in the recurring North Water Polynya (NOW), in addition to the inflow via Nares Strait and Jones Sound. Meanwhile, the mean outflow via the southern gate approaches 394.3(±110.2)×103 km2. The distinct interannual variability for ice area flux through the northern gate and southern gate is partly explained by wind forcing associated with cross-gate sea level pressure difference, with correlations of 0.62 and 0.68, respectively. Also, significant increasing trends are found for the annual sea ice area flux through the three gates, amounting to 38.9×103, 82.2×103, and 7.5×103 km2 decade−1 for the northern gate, southern gate, and Lancaster Sound. These trends are chiefly related to the increasing ice motion, which is associated with thinner ice owing to the warmer climate (i.e., higher surface air temperature and shortened freezing period) and increased air and water drag coefficients over the past decades.
"Para a Causa do Povo a Luta Continua!"
"And that's all I'm going to say about that". Forrest Gump
"Damn, I wanted to see what happened next" (Epitaph)

seancoulter

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Re: Arctic Background Data Library
« Reply #4 on: May 10, 2019, 03:46:48 PM »
Here is a report from the UN on the Arctic looking at just about everything. Available as pdf or e-book. Loads of really nice (though sometimes somewhat alarming) graphics.

http://www.grida.no/publications/431
https://gridarendal-website-live.s3.amazonaws.com/production/documents/:s_document/465/original/GlobalLinkages.pdf?1552478695
https://grid.cld.bz/Global-Linkages/2/

This is great images that give a better understanding of Climate Change and how it affects not only the Arctic but the entire planet. Also, it's also sad that such a thing is happening right now and we aren't putting enough efforts to stop it.

Thawing Thunder

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Re: Arctic Background Data Library
« Reply #5 on: June 16, 2019, 12:19:59 AM »
Maybe not 100% on topic, but this is the site I go every day to get a good overlook about what's going on:

seaice.de

I would appreciate a link to some longtime storage of satellite imagery like the one from AMSR2 because I would like to create extended animations. Long and smooth animations for me are some of the best tools to learn about Arctic melt.

I was also searching the original link to the Slater predictions – until now without luck ...
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vox_mundi

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Re: Arctic Background Data Library
« Reply #6 on: March 01, 2023, 04:57:03 PM »
Datasets at Your Fingertips in Google Search
https://ai.googleblog.com/2023/02/datasets-at-your-fingertips-in-google.html

Access to datasets is critical to many of today's endeavors across verticals and industries, whether scientific research, business analysis, or public policy. In the scientific community and throughout various levels of the public sector, reproducibility and transparency are essential for progress, so sharing data is vital. For one example, in the United States a recent new policy requires free and equitable access to outcomes of all federally funded research, including data and statistical information along with publications.

To facilitate discovery of content with this level of statistical detail and better distill this information from across the web, Google now makes it easier to search for datasets.

Dataset Search
https://g.co/datasetsearch

Dataset Search, a dedicated search engine for datasets, powers this feature and indexes more than 45 million datasets from more than 13,000 websites. Datasets cover many disciplines and topics, including government, scientific, and commercial datasets. Dataset Search shows users essential metadata about datasets and previews of the data where available. Users can then follow the links to the data repositories that host the datasets.

Dataset Search primarily indexes dataset pages on the Web that contain schema.org structured data. The schema.org metadata allows Web page authors to describe the semantics of the page: the entities on the pages and their properties. For dataset pages, schema.org metadata describes key elements of the datasets, such as their description, license, temporal and spatial coverage, and available download formats. In addition to aggregating this metadata and providing easy access to it, Dataset Search normalizes and reconciles the metadata that comes directly from the Web pages.

If you are a dataset author or provider and want others to find your datasets in Search, make sure that you publish your dataset in a way that makes it discoverable and specifies how others can reuse the data. Specifically, ensure that the Web page that describes the dataset has machine-readable metadata. The easiest way to ensure this is to publish your dataset in an established dataset repository. Some repositories cater to specific research communities, while others are "generalists" (figshare.com, zenodo.org, datadryad.org, kaggle.com, etc.). These repositories automatically include metadata in dataset pages for every dataset, which makes it easy for search engines to discover and include them in specialized result sections, as in the figure above.
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morganism

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Re: Arctic Background Data Library
« Reply #7 on: August 17, 2023, 10:43:23 AM »
Digital public library has lots of historic and recent pics with lots of fair use permissions.

if you want to query it on specifics, it can forward you to other digitized info collections.

also lets you save searches and lists

https://dp.la/search?q=glaciers+in+north+america


morganism

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Re: Arctic Background Data Library
« Reply #8 on: January 27, 2024, 10:40:43 AM »
(heard about the hack, ddn't realize it was all the monitoring info and backups)



The Main Intelligence Directorate of Ukraine's Ministry of Defense claims that pro-Ukrainian hacktivists breached the Russian Center for Space Hydrometeorology, aka "planeta" (планета), and wiped 2 petabytes of data.

Planeta is a state research center using space satellite data and ground sources like radars and stations to provide information and accurate predictions about weather, climate, natural disasters, extreme phenomena, and volcanic monitoring.

The agency is affiliated with Roscosmos, Russia's space agency, and it supports sectors such as the military, civil aviation, agriculture, and maritime.

In another case of state-affiliated hacking, Ukraine says cyber volunteers known as the "BO Team" successfully breached Planeta's Far Eastern branch (the largest of the three).

While the Ukrainian government does not state if they were involved in the attack, they claim the hackers destroyed 280 servers used by the research center, which held 2 petabytes of data (2000 terabytes).

This massive volume of information would be difficult and costly to store in backups, so if Ukraine's claims are true, this is a catastrophic attack on Planeta.

The Ukrainian intelligence service says the damage from the data loss is estimated to be $10,000,000, impacting the operation of supercomputer clusters and also years of research.

"Among the destroyed data are meteorological and satellite data, which were actively used in constant mode by the Ministry of Defense and MNS RF, "Roscosmos," and several other state agencies-aggressors, as well as years of unique research," reads the announcement (machine translated).

"The work of supercomputers equipped in the research center is paralyzed and cannot be fully restored."

The Ukrainians emphasize that given the sanction-imposed constraints, which severely limit Russia's capacity to restore sophisticated computer systems and software, this incident represents a formidable challenge for the research center to overcome.

https://www.bleepingcomputer.com/news/security/ukraine-hack-wiped-2-petabytes-of-data-from-russian-research-center/