Latest Ice and Temperature data

Latest Sea Ice and Global Temperature contents:

	Introduction
Monthly Global temperature indices
Table:	Latest Global Anomaly data
Report:	Latest Monthly TempLS Report (mesh weighted)
Graphs:	Global Temperature indices - graphs of recent months
Active Graph:	Global Temperature indices - Also backtrends. Many user choices.
Table:	Months ordered in descending surface temperature anomaly
Table:	Graphics about highest month and year temperatures
Daily Reanalysis Temperatures
Table:	Recent days NCEP/NCAR reanalysis surface global average anomaly temperature
Active WebGL map:	Recent days NCEP/NCAR reanalysis surface global average anomaly temperature
Active map and plot:	Recent days NCEP/NCAR reanalysis regional Arctic temperatures
NH and SH Sea Ice data
Table:	Latest Sea Ice Extent - JAXA, NSIDC NH, NSIDC SH
Active graph:	Latest Sea Ice Extent - JAXA, NSIDC NH, NSIDC SH
Miscellaneous
Table:	Log of recently downloaded data files

This automatically updated page has an embedded html window in which the numbers will appear. I check for data hourly. There is a log (bottom) which shows when data arrives, and also gives latest links.

Temperatures anomalies in the tables are as stated by the providers, with different anomaly bases. They have been converted to the same base (1981-2010) for plotting. The active plot has this common anomaly base

Sources and glossary:

Monthly global temperature anomaly data

Here is the latest global anomaly temperature data, as supplied by the sources, with their varying base periods. An archive of this data, by month back to Dec 2016, is indexed here.

Here is the latest report from TempLS FEM weighted version. A reference on the Moyhu global temperature index (least squares) is here, with links to earlier posts. There is a Moyhu post each month on about 7th based on this report.

Here are some plots of temperature indices in recent times, set to a common anomaly base (1981-2010). Use buttons below the image to cycle through longer periods.

Here is an active plotter for global temperature indices, starting with to a common anomaly base of 1981-2010. Details of its operations are in a post here. You can vary the selection of plot data with the checkboxes. The legend bottom left is moveable, and intended to be placed on the plot for screen capture and image editing. Dragging in the plot area just translates the plots, but dragging below the x-axis stretches x, and similarly for y.

The plot also allows you to switch (toggle button "Trendback") to a mode which shows on the y-axis not the anomaly, but the trend from the x-axis time to the most recent data. In this mode you can't regress or smooth, and anomaly has no effect.

Table of months in descending order of temperature

Next is a table of monthly anomalies from various sources, listed (with annual) in descending order of temperature. The warmest 10 are shown. Each temperature is preceded by its year (last two digits).

Graphics showing warmest recent months and years

In this set of active plots, you can see up to date versions of plots of average global T anomaly of months and years in order of warmth. The first is a stacked plot of months, with whole year at the end. This gives a bar for ech month, colored according to year, but stacked by month, in some order. The first lays down warmest first, then next and so on. Each month is visible (unless there is a tie). The second lays them in time order, most recent first. Then the bars you see are only those which were a record in their time, and shows how the rcords built up.

The third is a progress of annual records. It is really just a bar plot of annual averages, but coored to mark which periods followed a record year before the record was broken.

The arrow buttons below each plot allow you to cycle through a number of data providers, including HADCRUT, GISS, NOAA, UAH,RSS and TempLS.

Daily Reanalysis Temperature data

Here is the latest NCEP/NCAR reanalysis (see post) surface temperature (°C) anomaly area-weighted average for recent months, and for days of the current month. The anomaly base years 1994-2013. You can find here an updated zip file of the daily and monthly values since 1994, with a readme file.

Here is a WebGL active map of recent daily temperature anomalies. It has the usual trackball facilities. To get a specific day, let the mouse hover over the colored squares on the right; each square is a day, and the text top right tells you where you are. Click when you have the day that you want. The black squares at the top will give you a month average map. Details are at this post.

Update I have added buttons above the date selector which allow flipping through consecutive days to make a kind of movie.

Here is a tool for looking at daily Arctic temperatures. It is described in a post here. There is a lat/lon rectangle that you can manoeuver, and then press the "plot new" button to see a plot for that region of daily average temperatures (not anomalies), along with the 1994-2013 average. The domain is initially set to the region N of 80°.

NH and SH Sea Ice data

Here is the latest Arctic sea ice extent data. You can choose from JAXA Arctic Ice Extent, or from NSIDC NH or SH. Note that JAXA is currently not being updated, but the NSIDC are:

Here is an active polar plot of the Jaxa Ice extent data. Units are million sq km. You can click on the current region circle to get a magnification, or on any sector to see that part expanded. Clicking on the legend marks the year in dark; clicking on the central picture makes it go away. Details here.

Miscellaneous

And here is a log of the most recent data files to be posted. The links show the URL that was actually downloaded. The date on the left is the time marked on the file at origin, and the delay is the difference between that and the time of download and processing here. Sometimes that includes a delay between the date marked and when it became visible. NCEP/NCAR, for example, seems to have a six hour delay between the date marked and when it becomes available for download.