You Bet!

In a previous post, I stated that the current trend in global temperature increase is sufficient that by 2015, data will probably establish that the planet’s temperature has definitely not stabilized or begun to decline. Specifically:

Data Links

You may have noticed there’s a new link at the top of the main page titled “Climate Data Links.” It’s a page I’ve created to collect together links to original data sources related to climate science. Of course others have done this, but it’ll reflect both my own personal preferences and requests from readers.

I don’t intend to be comprehensive; I’d rather keep it simple and easy. But I would like to include those things that readers consider useful and that I’ve used myself for posts here. It’s also just begun, so there are fewer than a dozen links so far, and not all of those are yet active!

So, if you have a link you’d like included on this page, feel free to submit it as a comment on this thread. I may or may not include it! Up to me…

Note: this thread is for link requests for the data page ONLY. There are plenty of other posts here for you to express your opinion on other matters.

Global Temperature from GISS, NCDC, HadCRU

The results are finally in. Year-end numbers have been posted by the three organizations which, as far as I know, publish online the most relied-upon global average temperature estimates. NASA GISS posted their year-end results first, around Jan. 9, NCDC updated about Jan. 15, and HadCRU has finally updated their global-average files to reflect results from 2007. Let’s take a look.

Down Under

The equator, that is, you’ll find the southern hemisphere. In our survey of NASA’s recently released year-end temperature data we’ve looked at global results, and at northern-hemisphere (NH) land data. Now it’s time to give SH (southern hemisphere) land areas (where quite a few people live) their due. For SH land, the hottest years on record are 1998, 2005, 2002, and 2003, with 2007 (last year) coming in 5th:

Hit You Where You Live

Like the majority of people, I live in the northern hemisphere. And like the vast majority of people, I don’t live at sea, I live on land.

NASA GISS, in addition to reporting its global temperature measurements for 2007, also reports monthly data for land areas and for northern-hemisphere (NH) land, and annual data for a number of different latitude bands. Continuing our survey of NASA’s recently released year-end temperature data (still waiting for year-end data from HadCRU and NCDC), let’s take a look at the NASA results for NH land and its various latitude regions, i.e., the place where I (and probably you) live:

Models

Just a quick note: I happened on this post on “Weather Underground” which gives some excellent perspective on models, and appears to be the first in a series. If the rest are as good as this, reading the entire series will be time well spent. Look for the entry titled “Models(1) Assumptions:”

Dead Heat

For those who are waiting for a review of the recent work on MSU temperature estimates, it’s coming. But it turns out to be a rather complex subject, with many papers to review and a lot of data to examine, so it’ll take a bit longer. In the meantime, the NASA GISS year-end estimates of monthly average temperature have been released, so let’s take a look. GISS provides monthly average temperature data from 1880 to the present for four areas: the land+sea (the globe), land, northern hemisphere land, and southern hemisphere land. The most oft-referenced data, which represent land and ocean for the entire planet, are the “globe” (land+sea) numbers.