In a comment on a prior thread (h/t CementAFriend), it was requested to use seasons shifted one month to better align with the experience of folks living in Australia. In this posting, I’m going to use those seasons. I’m also going to put up the 12 individual months along with the 4 seasonal averages (so 16 total graphs, all Australia & Pacific Islands).
There were three “insane” temperatures found in the Region 5 data. Those have been set to “missing data flags” of -99.9 C so will not have any effect on these graphs.
Here’s the code to reset those values to missing data:
chiefio@PiM3Devuan2:~/SQL/bin$ cat FixAusBad.sql UPDATE temps3 SET deg_C=-99.9 WHERE stnID='50291652000' AND month=" APR" AND year=2000 ; UPDATE temps3 SET deg_C=-99.9 WHERE stnID='50396237000' AND month=" AUG" AND year=1992 ; UPDATE temps3 SET deg_C=-99.9 WHERE stnID='50998644000' AND month=" MAR" AND year=2012 ; [...] MariaDB [temps]> source FixAusBad.sql Query OK, 1 row affected (0.72 sec) Rows matched: 1 Changed: 1 Warnings: 0 Query OK, 1 row affected (0.03 sec) Rows matched: 1 Changed: 1 Warnings: 0 Query OK, 1 row affected (0.04 sec) Rows matched: 1 Changed: 1 Warnings: 0 MariaDB [temps]> [...] MariaDB [temps]> SELECT deg_C FROM temps3 WHERE deg_C >50 AND region=5; Empty set (36.28 sec) MariaDB [temps]>
Then, with that fixed, I’ve re-run the anomaly creation step and we’re ready to make the monthly and seasonal graphs.
MariaDB [temps]> DROP TABLE anom3; Query OK, 0 rows affected (1.09 sec) MariaDB [temps]> source tables/anom3 Query OK, 0 rows affected (0.31 sec)
(The table layouts and load anomaly code are documented in earlier postings)
The seasonal mapping used in this set is:
Summer January, February, March Fall April, May, June Winter July, August, September Spring October, November, December
So first off, the seasonal graphs. I’ve put the word “Local” or the letter L in the names of these to designate that the seasons are divided as the locals do it. All of the graphs have the same range of -6 to +4 anomaly as this lets the graphs be compared more easily. It compresses some of the lower volatility months – or perhaps just better demonstrates the lack of volatility… Especially compared with some of the continents in the prior posting.
I’m not going to put much commentary here as I already commented in the earlier posting. So, without further ado, here’s the months:
So there you have it. Australia and the Pacific Islands all sorts of detail. To me it looks like maybe a bit of UHI in winter but mostly like nothing much happening, and summers even showing a bit of a cooling over the years. Especially January and March.
UPDATE – Airports vs NOT Airports:
I made a couple of graphs of Airports vs NOT Airports for Summer in Australia / Pacific (remember that Region 5 includes places like New Zealand, the Philippines and other islands too) Here they are for whatever they mean. Both look to have some rise at the end, but the NON-airports do it by narrowing the range as their number drops a lot (see comments below) and their elevation drops (see comment below). Airports seem to have a more defined “rounding up” rise with the growth of air travel and the Jet Age.
Update 2 – Elevation Over Time:
Here is a graph of station elevation over time for Region 5 – Australia Pacific.