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NASA releases detailed global climate change projections

climate.nasa.gov

21–30 of 143 posts

Re: NASA releases detailed global climate change projections

#21
post #19

This article is about creating the projections and that they are available. Is there an article describing what the projections have projected?

I don't think anybody managed to download the whole set so far .

NASA has it already. Do they not want to be in the business of interpreting climate data? Or is it too soon even for them?

Re: NASA releases detailed global climate change projections

#22
post #16
post #11

Earlier quoted context omitted.

At 12 TB I think just getting the files would take days of downloading. I have 25 mbs which equals to 1041:40:00 (hh:mm:ss) That is 25 mbs perfect connection with no errors or drops. 1041 hours equals 43+ days. http://www.numion.com/calculators/time.html

Would it go significantly quicker if you downloaded it to a VPS instead of your home?

That would help but the cost of storage for 11 TB and the up time to download would be extremely expensive. I haven't seen an option that works for less than around $200 to rent and setup.

Re: NASA releases detailed global climate change projections

#24
The entire dataset is 12TB because it contains _daily_ global 25x25km maps for all years between 1950-2099 probably for a bunch of different variables.

You don't need to download the entire thing to get the gist of it, although it probably would have helped if they also delivered a digest version with for example yearly or 5-yearly averages.

Edit: There is also a THREDDS data catalog present which allows you to extract slices or subsets of the entire data. Other than that it's missing a nice visualization tool I'd say its a pretty reasonable way of making such a huge amount of data available.

Re: NASA releases detailed global climate change projections

#25
post #14
post #6

Earlier quoted context omitted.

I sure hope so because I am very very curious. Surely there are a lot of researchers that will love to jump into this data and manipulate it somehow. It's a good time to be studying climate change now... your dissertation is right here :D

> I sure hope so because I am very very curious. Indeed. The image at the top of the page (presumably the worst case scenario) has no legend. I'm guessing that the red is desert, but what counts as temperate? The South America blue or the South Africa yellow? Or are the colors a delta from the current temperatures? It's amazing how easy it is to turn a 12TB deluge of pristine scientific data into something completely…

My guess is that it shows the average temperature rather than actual climate. So red would be high temperature, and blue cold. I don't think that it refers to precipitation or anything like that. Or it could be a stock photo...

Re: NASA releases detailed global climate change projections

#26

Let's see if these fare any better than the projections used by the IPCC ... http://esr.ibiblio.org/?p=5297 "The most recent climate model simulations used in the AR5 indicate that the warming stagnation since 1998 is no longer consistent with model projections even at the 2% confidence level." Kudos to them for publishing these, though. If they are rotten, it ought to be easy to tell.

ESR is a climate scientist too?! Is there anything he isn't an expert on?

swoon

Re: NASA releases detailed global climate change projections

#27

Let's see if these fare any better than the projections used by the IPCC ... http://esr.ibiblio.org/?p=5297 "The most recent climate model simulations used in the AR5 indicate that the warming stagnation since 1998 is no longer consistent with model projections even at the 2% confidence level." Kudos to them for publishing these, though. If they are rotten, it ought to be easy to tell.

His global warming conspiracy theories are as crackpot as his racist criminology theories.

"In the U.S., blacks are 12% of the population but commit 50% of violent crimes; can anyone honestly think this is unconnected to the fact that they average 15 points of IQ lower than the general population? That stupid people are more violent is a fact independent of skin color. " -Eric S Raymond, http://esr.ibiblio.org/?p=129

Raymond also blames Alan Turing for his judicial punishment and suicide, even though Raymond, like every other computer programmer, owes Turing his career. http://rationalwiki.org/wiki/Eric_S._Raymond http://esr.ibiblio.org/?p=1046#comment-236592

Re: NASA releases detailed global climate change projections

#28

Let's see if these fare any better than the projections used by the IPCC ... http://esr.ibiblio.org/?p=5297 "The most recent climate model simulations used in the AR5 indicate that the warming stagnation since 1998 is no longer consistent with model projections even at the 2% confidence level." Kudos to them for publishing these, though. If they are rotten, it ought to be easy to tell.

ESR is a climate scientist too?! Is there anything he isn't an expert on? swoon

http://rationalwiki.org/wiki/Eric_S._Raymond

During the Climategate fiasco, Raymond's ability to read other peoples' source code (or at least his honesty about it) was called into question when he was caught quote-mining analysis software written by the CRU researchers, presenting a commented-out section of source code used for analyzing counterfactuals as evidence of deliberate data manipulation. When confronted with the fact that scientists as a general rule are scrupulously honest, Raymond claimed it was a case of an "error cascade," a concept that makes sense in computer science and other places where all data goes through a single potential failure point, but in areas where outside data and multiple lines of evidence are used for verification, doesn't entirely make sense. (He was curiously silent when all the researchers involved were exonerated of scientific misconduct.)

"My favorite part of the "many eyes" argument is how few bugs were found by the two eyes of Eric (the originator of the statement). All the many eyes are apparently attached to a lot of hands that type lots of words about many eyes, and never actually audit code." -Theo De Raadt http://marc.info/?l=openbsd-tech&m=129261032213320

Re: NASA releases detailed global climate change projections

#29
post #11
post #5

Earlier quoted context omitted.

I'm sure someone here is already making a visualization with the dataset.

At 12 TB I think just getting the files would take days of downloading. I have 25 mbs which equals to 1041:40:00 (hh:mm:ss) That is 25 mbs perfect connection with no errors or drops. 1041 hours equals 43+ days. http://www.numion.com/calculators/time.html

I have 150Mbps so could do this in ((12TB/18MB)/3600)/168 about 1.1 weeks.

I'm also supposedly completely unlimited on my package, I think that might push the limit though.

What I don't have is anything like 12TB of storage, all systems at home combined is maybe 2TB.

Re: NASA releases detailed global climate change projections

#30

NASA has released detailed global climate change projections. If you would like to know what these projections are please drink from this data firehose.

I might be wrong, but I believe the THREDDS server the article points to (by way of https://cds.nccs.nasa.gov/nex-gddp/) supports OPeNDAP, which means you can pull subsets of the data, i.e. if you've got a 40GB file, you could slice a tiny portion of that off for downloading.
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