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In the discussion thread "northern methane concentration" I had started a discussion about southern methane concentrations in particular about methane and temperature in Antarctica. I thought that it would make more sense to open up a seperate thread for this.
I tried to find more halfway accessible data. Since here and here it was suggested that the warming pause starting at round 1999/2000 (which seems as said partially also correlated with the methane values) may be at least partially linked to a heat uptake of deep ocean water, I tried to look at the ARGO data, at least around antarctica. As I understood (I hope I haven't overseen something) for all the there offered data products it is necessary either to have something like your own software for reading CDF files or to download extra software. Since I already have google earth, I thus chose this application. Unfortunately as it seems the data offered there is in a rather very bad shape. It seems each buoy is operated by a different agency and each agency has its own paradigms to not or to display data. On a first glance I found that the australian buoys appeared to offer at least something. I could though nowwhere find a history of ocean temperatures (preferebly with depth). These are all the australian floats, as I understood. A lot of them died as it seems. And this is a typical information you get if you investigate the floats. And as said the australian informations appeared to be as considerably detailed in contrast to the other buoys. If you know of better displays please let me know.
Comments
I have now at least found one australian buoy in Antarctica with at least 5 years observancy:
Jan 12, 2011:
Jan 19, 2012:
Jan 16, 2013:
Jan 13, 2014
Jan 20, 2015
I don't know those buoys are drifting around, but almost 1 degree celsius higher maximal temperature within a few years, appears to me to be quite a lot.
I would also like to point out that this buoy has a history of temperatures/depth diagram, which are however colour coded and thus the temperature fluctuations are not that well visible:
I have now at least found one australian buoy in Antarctica with at least 5 years observancy: Jan 12, 2011:  Jan 19, 2012:  Jan 16, 2013:  Jan 13, 2014  Jan 20, 2015  I don't know those buoys are drifting around, but almost 1 degree celsius higher maximal temperature within a few years, appears to me to be quite a lot.  I would also like to point out that this buoy has a history of temperatures/depth diagram, which are however colour coded and thus the temperature fluctuations are not that well visible: Now I have found an interactive ARGO online map....yet still no clearer temperature data. In particular I do not understand those "pressure versus "sea temperature in situ its-90 scale (degrees_celsius)" plots" like in the information (click on a float and klick on station informations) for this buoy.
Now I have found an <a href="http://www.argodatamgt.org/Access-to-data/Argo-data-selection">interactive ARGO online map</a>....yet still no clearer temperature data. In particular I do not understand those "pressure versus "sea temperature in situ its-90 scale (degrees_celsius)" plots" like in the information (click on a float and klick on station informations) for this <a href="http://www.ifremer.fr/co-argoFloats/float?ptfCode=5904152">buoy</a>.The following temperatures are read out by hand from this visualization. In principle one could of course code that and make curves etc..... Anyways I wanted to have unaveraged temperature data from Antarctica stations, here are three stations. Antarctica looks like a head with a Pinocchio kind of nose. Halley is on the forhead and Syowa and Novolazarevskaja are on top. Novolazarevskaya more to the front and Syowa more to the back of the head. All values are January.
Halley Station
1980 -5.6
1981 -3.7
1982 -3.9
1998 -4.7
1999 -4.6
2000 -6.4
2001 -5.6
2002 -4.5
2003 -4.3
2004 -5.2
2005 -4.4
2006 -4.9
2007 -3.6
2008 -6.6
2009 -5.3
2010 -3.9
2011 -3.5
Novolazarevskaja Station
1980 0.1
1981 0.0
1982 -2.8
1998 -0.3
1999 -0.2
2000 -1.8
2001 -0.7
2002 -0.4
2003 -0.2
2004 0.4
2005 0.5
2006 -0.6
2007 0.0
2008 -1.6
2009 -1.3
2010 0.6
2011 1.1
Unfortunately I found even a webcam of Syowa and the CH4 data but sofar no temperature curves.
Syowa Station
1980 0.6
1981 -1.2
1982 -1.6
1998 -0.2
1999 -1.2
2000 -2.3
2001 -1.0
2002 -1.8
2003 0.0
2004 0.3
2005 -0.5
2006 -1.0
2007 0.2
2008 -1.8
2009 -1.9
2010 0.4
2011 0.0
As a trend 2010 and 2011 look warmer than within an expectable average of the "plateau" years before, but especially by looking at the 8o's values not really out of fluctuation range.
This is certainly no statistical sound argument, but a hint that it may make sense to "look" (i.e. rather time consuming programming) alone even at the temperature of that stations together with their methane values.
The following temperatures are read out by hand from this <a href="http://nad0815.github.io/climate/tempGlobe/#">visualization.</a> In principle one could of course code that and make curves etc..... Anyways I wanted to have unaveraged temperature data from Antarctica stations, here are three stations. Antarctica looks like a head with a Pinocchio kind of nose. Halley is on the forhead and Syowa and Novolazarevskaja are on top. Novolazarevskaya more to the front and Syowa more to the back of the head. All values are January. Halley Station 1980 -5.6 1981 -3.7 1982 -3.9 1998 -4.7 1999 -4.6 2000 -6.4 2001 -5.6 2002 -4.5 2003 -4.3 2004 -5.2 2005 -4.4 2006 -4.9 2007 -3.6 2008 -6.6 2009 -5.3 2010 -3.9 2011 -3.5 Novolazarevskaja Station 1980 0.1 1981 0.0 1982 -2.8 1998 -0.3 1999 -0.2 2000 -1.8 2001 -0.7 2002 -0.4 2003 -0.2 2004 0.4 2005 0.5 2006 -0.6 2007 0.0 2008 -1.6 2009 -1.3 2010 0.6 2011 1.1 Unfortunately I found even a <a href="http://www.nipr.ac.jp/webcam-top.html">webcam of Syowa</a> and the <a href="http://scidbase.nipr.ac.jp/modules/metadata/index.php?content_id=144">CH4 data</a> but <a href="http://scidbase.nipr.ac.jp/?ml_lang=en">sofar</a> no temperature curves. Syowa Station 1980 0.6 1981 -1.2 1982 -1.6 1998 -0.2 1999 -1.2 2000 -2.3 2001 -1.0 2002 -1.8 2003 0.0 2004 0.3 2005 -0.5 2006 -1.0 2007 0.2 2008 -1.8 2009 -1.9 2010 0.4 2011 0.0 As a trend 2010 and 2011 look warmer than within an expectable average of the "plateau" years before, but especially by looking at the 8o's values not really out of fluctuation range. This is certainly no statistical sound argument, but a hint that it may make sense to "look" (i.e. rather time consuming programming) alone even at the temperature of that stations together with their methane values.<a href src=https://www.dropbox.com/s/k9ypn8tnr78msk7/AntarCH4-1980-2011.png?dl=0></a>Erm, don't seem to be able to delete a post.
Erm, don't seem to be able to delete a post.Sowya, Halley and Novolarevskaya temperatures, 1980-2011
Sowya, Halley and Novolarevskaya temperatures, 1980-2011 Sorry for cluttering up your thread with either my incompetence or a technical glitch. I can't post a .png file using (escaped, hopefully):
;
Sorry for cluttering up your thread with either my incompetence or a technical glitch. I can't post a .png file using (escaped, hopefully): \!\[Sowya, Halley and Novolarevskaya temperatures 1980-2011\]\(https://www.dropbox.com/s/k9ypn8tnr78msk7/AntarCH4-1980-2011.png?dl=0\)No problem but hey where did you get the data from? Did you scrape it from the seperate station pages? Somehow the graphs on that pages seem to have more data values and look quite differently.
>Sorry for cluttering up your thread with either my incompetence or a technical glitch. I can't post a .png file using (escaped, hopefully): No problem but hey where did you get the data from? Did you scrape it from the <a href="http://www.esrl.noaa.gov/gmd/dv/iadv/graph.php?code=SYO&program=ccgg&type=ts">seperate station pages</a>? Somehow the graphs on that pages seem to have more data values and look quite differently.I just plotted the data in your post #3 so I could see what they looked like.
I just plotted the data in your post #3 so I could see what they looked like.Oh. But these where temperatures! And I didn't read off the values between 1982 and 1998 and it was only January and that was only a more or less quick glimpse in order to see wether there might eventually be a temperature upward trend (in contrast to the warming pause assertions) like there is for the methane values. The values are in the HADCRUT file (see description) and I think (after having looked at the temp values) that it might be worthwhile to look at the temp values together with the methane values for those stations, where I think Novolazarevskaya didn't measure methane values...at least I haven't found it yet in the NOAA visualization.
>![Sowya, Halley and Novolarevskaya methane concentrations 1980-2011] >I just plotted the data in your post #3 so I could see what they looked like. Oh. But these where temperatures! And I didn't read off the values between 1982 and 1998 and it was only January and that was only a more or less quick glimpse in order to see wether there might eventually be a temperature upward trend (in contrast to the warming pause assertions) like there is for the methane values. The values are in the HADCRUT file (see description) and I think (after having looked at the temp values) that it might be worthwhile to look at the temp values together with the methane values for those stations, where I think Novolazarevskaya didn't measure methane values...at least I haven't found it yet in the NOAA visualization.Duh, I didn't read what the damn figures represented! Corrected. I couldn't strikethrough the incorrect text for traceable edits (a worthwhile practice imo) using the standard markdown syntax of ~~strikethrough this~~ but vanilla didn't appear to accept it so I deleted the misattribution.
Duh, I didn't read what the damn figures represented! Corrected. I couldn't strikethrough the incorrect text for traceable edits (a worthwhile practice imo) using the standard markdown syntax of ~~strikethrough this~~ but vanilla didn't appear to accept it so I deleted the misattribution.No problem. But as said it would be interesting though to get the temp and methane values for each station in order to see wether there are any correlations, like here.
>Duh, I didn't read what the damn figures represented! No problem. But as said it would be interesting though to get the temp and methane values for each station in order to see wether there are any correlations, like <a href="http://www.daytar.de/art/co2ch4TempViz/index.html">here.</a>I got lost in the Polar Research Institute's claim to have data but couldn't find any data at all at the 'CH4 data' link #3 http://scidbase.nipr.ac.jp/modules/metadata/index.php?content_id=144. It's a nightmare trying to find data at all, never mind the quality.
I got lost in the Polar Research Institute's claim to have data but couldn't find any data at all at the 'CH4 data' link #3 http://scidbase.nipr.ac.jp/modules/metadata/index.php?content_id=144. It's a nightmare trying to find data at all, never mind the quality.Yes the page shows the title
and a return command:
but all the buttons there seem deactivated:
When I first looked at that buttons I didn't push the download button so I didn't notice that they were deactivated.
But you get the CH4 data from NOAA via the menu (go on CH4, klick submit (left), klick on download data (now right side) and then look for the data at the bottom and click on the bin symbol, you get:
ftp://aftp.cmdl.noaa.gov/data/trace_gases/ch4/flask/surface/ch4_syo_surface-flask_1_ccgg_event.txt
I have the HadCrut4 files which contains the temps but only until 2011. It would make sense to find more up to date temps for Syowa and Halley for a comparision, but if I search for temperature, I first see some links:
Which are from 2013. Moreover following the links, I hadn't found any dataset.
>I got lost in the Polar Research Institute's claim to have data but couldn't find any data at all at the 'CH4 data' link #3 http://scidbase.nipr.ac.jp/modules/metadata/index.php?content_id=144. It's a nightmare trying to find data at all, never mind the quality. Yes the page shows the title >Polar Science Data Archives and a return command: >Return to Project List but all the buttons there seem deactivated: >DID Vol Filename Description File size Date of Entry Download When I first looked at that buttons I didn't push the download button so I didn't notice that they were deactivated. But you get the CH4 data from NOAA via the menu (go on CH4, klick submit (left), klick on download data (now right side) and then look for the data at the bottom and click on the bin symbol, you get: ftp://aftp.cmdl.noaa.gov/data/trace_gases/ch4/flask/surface/ch4_syo_surface-flask_1_ccgg_event.txt I have the HadCrut4 files which contains the temps but only until 2011. It would make sense to find more up to date temps for Syowa and Halley for a comparision, but if I <a href="http://scidbase.nipr.ac.jp/modules/search204/index.php?query=temperature&action=results&showcontext=1">search for temperature</a>, I first see some links: >Search Results Keyword(s): temperature Data Lists No Match Found for your Query d3pipes No Match Found for your Query Site Edit No Match Found for your Query Add New Meta Data Add New Meta DataSurface seawater environments during the cruise of TR/V Umitaka-Maru, UM0809（UM0809） (2013/6/5 11:25:57) Add New Meta DataSurface seawater environments during the cruise of TR/V Umitaka-Maru, UM0708 （UM0708） (2013/5/31 15:34:04) Add New Meta DataSurface seawater environments during the cruise of TR/V Umitaka-Maru, UM0506（UM0506） (2013/5/31 13:26:35) Add New Meta DataUnderway surface seawater data during the cruise of TR/V Umitaka-Maru, UM0405（UM0405） (2013/5/29 15:32:14) Add New Meta DataJARE oceanography database (2013/3/28 14:25:31) Which are from 2013. Moreover following the links, I hadn't found any dataset.Yep, I got to:
DID Vol Filename Desc ription File size Date of Entry Download
and found an empty page. I found and downloaded the noaa monthly ccgg methane data looking for the nearest float to the Laptev sea but I also got the Soywa etc. methane data. I'll try to plot the data from the northernmost station, code tik, over on the northern page.
Yep, I got to: DID Vol Filename Desc ription File size Date of Entry Download and found an empty page. I found and downloaded the noaa monthly ccgg methane data looking for the nearest float to the Laptev sea but I also got the Soywa etc. methane data. I'll try to plot the data from the northernmost station, code tik, over on the northern page.Finally posted the Sowya etc temperature graph at post #6 (which for some reason doesn't actually have a #number).
Finally posted the Sowya etc temperature graph at post #6 (which for some reason doesn't actually have a #number).I emailed Takahiro IIDA
to me Dear Jim,
Thank you for your interest to our data. We have only temperature, salinity and nutrients.
Please see the following website.
JARE
Best regards,
Tak
I emailed Takahiro IIDA to me Dear Jim, Thank you for your interest to our data. We have only temperature, salinity and nutrients. Please see the following website. [JARE](http://biows.nipr.ac.jp/JARE) Best regards, Taksrc: ch4_spo_surface-flask_1_event.txt
20.02.1983-26.12.2013
src: ch4_spo_surface-flask_1_event.txt 20.02.1983-26.12.2013 spo monthly 1983-2013
src: ch4_spo_surface-flask_1_ccgg_month.dat
Interpretation will have to wait till tomorrow.
spo monthly 1983-2013 src: ch4_spo_surface-flask_1_ccgg_month.dat  Interpretation will have to wait till tomorrow.That looks good (i.e. like the plot from NOAA, apart that the data starts at 1983 and stops in 2013)
I saw Takahiro IIDA's adress and also the JARE site, but where are the temps?
 That looks good (i.e. like the plot from NOAA, apart that the data starts at 1983 and stops in 2013) I saw Takahiro IIDA's adress and also the JARE site, but where are the temps?I'm not sure it's not the same data. The data for this stuff is so small we can put it on github if we can define a sensible naming system.
Idk, we'll have to dig some more :)
There are lots of spikes in these graphs which look pathological; why?, idk.
Takahiro is on google plus so we can instant msg him. Maybe he'll help us out?
I'm not sure it's not the same data. The data for this stuff is so small we can put it on github if we can define a sensible naming system. > where are the temps? Idk, we'll have to dig some more :) There are lots of spikes in these graphs which look pathological; why?, idk. Takahiro is on google plus so we can instant msg him. Maybe he'll help us out?Guess so. What is Idk?
Some of them -maybe a cow flatulating next to the flask? (unlikely in antarctica though.)
>Idk, we'll have to dig some more Guess so. What is Idk? >There are lots of spikes in these graphs which look pathological; why?, idk. Some of them -maybe a cow flatulating next to the flask? (unlikely in antarctica though.)I do know that idk is the opposite. By the way, it's burping from the rumen (second stomach) which emits methane not farting.
I do know that idk is the opposite. By the way, it's burping from the rumen (second stomach) which emits methane not farting.yes. I almost forgot.
Idk: International data katastrophy?
>By the way, it's burping from the rumen (second stomach) which emits methane not farting. yes. I almost forgot. >I do know that idk is the opposite. Idk: International data katastrophy?katastrophy is definitely a bad morphism in this context.
katastrophy is definitely a bad morphism in this context.Actually it just occurred to me that even if it looks quite similar to the Syowa data that's actually not Syowa data. That is the station id of Syowa is syo and not spo and the data file linked to from Syowa carries the syo id. spo is south pole, which is close to syowa so no wonder that the data looks similar.
In particular if I look at ftp://aftp.cmdl.noaa.gov/data/trace_gases/ch4/flask/surface/ch4_syo_surface-flask_1_ccgg_event.txt (I still think about visualizing temps and CH4 of Syowa and Halley) I see that the data starts in 1986 but stops already in Dec. 2007:
So thats bad, because the interesting part is after 2007.
>spo monthly 1983-2013 >src: ch4_spo_surface-flask_1_ccgg_month.dat >That looks good (i.e. like the plot from NOAA, apart that the data starts at 1983 and stops in 2013) Actually it just occurred to me that even if it looks quite similar to the Syowa data that's actually not Syowa data. That is the station id of Syowa is syo and not spo and the data file linked to from Syowa carries the syo id. spo is south pole, which is close to syowa so no wonder that the data looks similar. In particular if I look at ftp://aftp.cmdl.noaa.gov/data/trace_gases/ch4/flask/surface/ch4_syo_surface-flask_1_ccgg_event.txt (I still think about visualizing temps and CH4 of Syowa and Halley) I see that the data starts in 1986 but stops already in Dec. 2007: >SYO 2007 10 17 06 50 00 3126-99 P ch4 CCGG 1748.080 1.700 ... H4 2008 05 12 09 16 00 -69.0000 39.5750 14.00 253983 SYO 2007 11 11 10 07 00 3775-99 P ch4 CCGG 1743.680 1.700 ... H4 2008 05 12 09 59 00 -69.0000 39.5750 14.00 253978 SYO 2007 11 11 10 07 00 3776-99 P ch4 CCGG 1744.040 1.700 ... H4 2008 05 12 10 13 00 -69.0000 39.5750 14.00 253979 SYO 2007 11 19 06 25 00 2989-99 P ch4 CCGG 1744.540 1.700 ... H4 2008 05 19 14 10 00 -69.0000 39.5750 14.00 253968 SYO 2007 11 19 06 25 00 2990-99 P ch4 CCGG 1743.720 1.700 ... H4 2008 05 19 14 24 00 -69.0000 39.5750 14.00 253969 SYO 2007 12 03 06 10 00 653-99 So thats bad, because the interesting part is after 2007.Even more bad is that it seems that the south pole temperatures are not in the CRUTEM4 data file. That is I neither couldn't find the station by hand nor by direct search in the data file. That is searching for pole revealed only the stations: "lodgepole" and "napoleon". It seems very unlikely that the south pole station measures CH4 but not temps. So what the hell is going on here?
Even more bad is that it seems that the south pole temperatures are not in the CRUTEM4 data file. That is I neither couldn't find the station by hand nor by direct search in the data file. That is searching for pole revealed only the stations: "lodgepole" and "napoleon". It seems very unlikely that the south pole station measures CH4 but not temps. So what the hell is going on here?Here is the methane concentration graph the from the Soywa flask. Missing data is indicated by -999.99.
src: ftp://aftp.cmdl.noaa.gov/data/trace_gases/ch4/flask/surface/ch4_syo_surface-flask_1_ccgg_event.txt
Here is the methane concentration graph the from the Soywa flask. Missing data is indicated by -999.99.  src: ftp://aftp.cmdl.noaa.gov/data/trace_gases/ch4/flask/surface/ch4_syo_surface-flask_1_ccgg_event.txtThis graph doesn't look like your Soywa plot #20 I'll have to check I've pulled out the correct data from the correct file; I did it a couple of days ago so I have no recollection of what I did.
This graph doesn't look like your Soywa plot #20 I'll have to check I've pulled out the correct data from the correct file; I did it a couple of days ago so I have no recollection of what I did.Yep, we both have the same data and plots; the -999.99 missing values have made the y-scale ridiculous; it looks right at an increase from about 1600-1770. Why we can't seem to find the temperature data for these 3 stations beats me :(.
Yep, we both have the same data and plots; the -999.99 missing values have made the y-scale ridiculous; it looks right at an increase from about 1600-1770. Why we can't seem to find the temperature data for these 3 stations beats me :(.I found Halley temperature data.
Of course it's in a completely different formal from NOAA so I'll have to tweak my data scraper.
I found [Halley temperature data](http://www.antarctica.ac.uk/met/gjma/). Of course it's in a completely different formal from NOAA so I'll have to tweak my data scraper.Halley temperatures 1927-2015
I defaulted the missing value to 0; if the Halley temp gets there then we'll have a lot more to worry about.
Halley temperatures 1927-2015  I defaulted the missing value to 0; if the Halley temp gets there then we'll have a lot more to worry about.wow how did you find those temps? although the website said not updated anymore it contained feb 2015 data!
Anyways I compared the HADCRUT data for Syowa with the Syowa temps at antarctica.ac.uk and saw already upon just looking at it briefly sometimes differences in the after the point decimal. thats strange. you would assume that communication within UK would be unambiguously, so it seems the data from Syowa went other channels. unfortunately antarctica.ac.uk also doesn't have the south pole.
on a first glance the temps seem not to show any warming or plateau trend. interesting. but one should may be look at it a bit more and eg look at the averages.
>Halley temperatures 1927-2015 wow how did you find those temps? although the website said not updated anymore it contained feb 2015 data! Anyways I compared the HADCRUT data for Syowa with the Syowa temps at antarctica.ac.uk and saw already upon just looking at it briefly sometimes differences in the after the point decimal. thats strange. you would assume that communication within UK would be unambiguously, so it seems the data from Syowa went other channels. unfortunately antarctica.ac.uk also doesn't have the south pole. on a first glance the temps seem not to show any warming or plateau trend. interesting. but one should may be look at it a bit more and eg look at the averages.The BAS website is a single page application where all sub-pages have the same url; this is a technique for enabling the back button within a site. So all page have the same url. The BAS site front page (urrgh) says "here" and from that page you have to click "Data" and and on the next page "temperatures" and then you get a complete list of stations and data.
Every designer needs to learn cognitive ergonomics!
The BAS website is a single page application where all sub-pages have the same url; this is a technique for enabling the back button within a site. So all page have the same url. The [BAS](http://www.antarctica.ac.uk/met/gjma/) site front page (urrgh) says "here" and from that page you have to click "Data" and and on the next page "temperatures" and then you get a complete list of stations and data. Every designer needs to learn cognitive ergonomics!A frame-based HTML site, not so common nowadays.
A frame-based HTML site, not so common nowadays.Sorry I should have made that clearer. I had already figured that out myself when I asked and meant how did you find that website and that it contained that data?
webhierarchies without direct URL are what I would mildly call a "misdirected webdesign". Unfortunately this happens not only by accident, but some webdiesigners are convinced that this is cool....
>wow how did you find those temps? > The BAS site front page (urrgh) says "here" and from that page you have to click "Data" and and on the next page "temperatures" and then you get a complete list of stations and data. Sorry I should have made that clearer. I had already figured that out myself when I asked and meant how did you find that website and that it contained that data? webhierarchies without direct URL are what I would mildly call a "misdirected webdesign". Unfortunately this happens not only by accident, but some webdiesigners are convinced that this is cool....A frame-based HTML page is essentially a collection of home pages separated into bordered "frame" cells . If you are using Firefox, right click "This Frame / Show Only This Frame" and you can navigate to the conventional main page that you want to stay on. Then you can give out that link without the confusion.
Hope that helps.
A frame-based HTML page is essentially a collection of home pages separated into bordered "frame" cells . If you are using Firefox, right click "This Frame / Show Only This Frame" and you can navigate to the conventional main page that you want to stay on. Then you can give out that link without the confusion. Hope that helps.Tnx Paul, I haven't used an i-frame for a decade or more.
Tnx Paul, I haven't used an i-frame for a decade or more.Yeah. I didn't know that you can get frame links in firefox. So here is the link to the Syowa temps:
http://www.antarctica.ac.uk/met/READER/surface/Syowa.All.temperature.html
....however unfortunately there are still script based pages around where the browser isn't able to produce a link (...at least that's my current impression :) )
>If you are using Firefox, right click "This Frame / Show Only This Frame" and you can navigate to the conventional main page that you want to stay on. Then you can give out that link without the confusion. >Hope that helps. Yeah. I didn't know that you can get frame links in firefox. So here is the link to the Syowa temps: http://www.antarctica.ac.uk/met/READER/surface/Syowa.All.temperature.html ....however unfortunately there are still script based pages around where the browser isn't able to produce a link (...at least that's my current impression :) )Yes. It seems they had updated the file. 1987 is missing and 1988 had too -999.99 It took me a little longer but I basically get the same results as you:
The mean temperatures at Syowa are very stable at around -10 degrees. So now it would be interesting to see the water temps in Syowa's vicinity.
>Here is the methane concentration graph the from the Soywa flask. Missing data is indicated by -999.99. Yes. It seems they had updated the file. 1987 is missing and 1988 had too -999.99 It took me a little longer but I basically get the same results as you:  The mean temperatures at Syowa are very stable at around -10 degrees. So now it would be interesting to see the water temps in Syowa's vicinity.