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by Lars-Ake
21 Feb 2009, 18:46
Forum: Dendrochronology in general
Topic: Questions raised by the Hollstein data
Replies: 12
Views: 27453

Re: Questions raised by the Hollstein data

I have now added an extra section "More information" to my Hollstein pages at http://www.cybis.se/forfun/dendro/hollstein . The two first items of that section are already reported within this forum/this topic. Though at the end of that section there are two pictures showing the curve matc...
by Lars-Ake
20 Feb 2009, 00:46
Forum: CDendro General Discussion
Topic: The Development version of CDendro
Replies: 5
Views: 11845

Re: The Development version of CDendro

There is now a new development version of CDendro together with a new version of CooRecorder. Main feature to traverse a crack with CooRecorder is reported in another posting. In CDendro the Correlation coefficient (and TTest-values) can now be shown like this: http://www.cybis.se/forumimages/piledc...
by Lars-Ake
20 Feb 2009, 00:29
Forum: CooRecorder General Discussion
Topic: The development (test) version of CooRecorder
Replies: 5
Views: 10346

Re: The development (test) version of CooRecorder

19 February 2009: CooRecorder: A new tool - CrackMarker - to use when a crack cannot be easily traversed with a double-point. Help on using crack marker points (see that you reload/refresh the page!) CDendro: Mechanisms to make CDendro handle crackmarker points in .pos files. Crossdating quality tes...
by Lars-Ake
16 Feb 2009, 17:35
Forum: Dendrochronology in general
Topic: Questions raised by the Hollstein data
Replies: 12
Views: 27453

Re: Questions raised by the Hollstein data

....... http://www.jahr1000wen.de/jtw/img/Hol190_174ad.gif shows H's data near the 1000 year minimum. http://www.jahr1000wen.de/jtw/img/Hol194_472ad.gif a similar set some 300 years later. Do you see a chance to generate quantitative correlation data from this with your program? ... For the compari...
by Lars-Ake
14 Feb 2009, 12:59
Forum: Dendrochronology in general
Topic: Questions raised by the Hollstein data
Replies: 12
Views: 27453

Re: Questions raised by the Hollstein data

Please also note that the uncertain years according to Holstein data detected by Lars-Åke are 207 years before approximately 540 AD (i.e aprox. the years 333-540 AD) which is an other period than Illig's "Phantom time" (7'th to 9'th cent AD). His needs of exactly 297 years after AD 590, a...
by Lars-Ake
13 Feb 2009, 18:46
Forum: Dendrochronology in general
Topic: Questions raised by the Hollstein data
Replies: 12
Views: 27453

Re: Questions raised by the Hollstein data

...... In fact, Holstein's data include a duplicated section. This can be seen, when two scans of samples from Trier are superimposed [ http://www.jahr1000wen.de/jtw/img/Hol_TrierMosel5.gif]: For comparison, the data from the Amphitheatre were shifted by 305 years against the data from the Roman br...
by Lars-Ake
11 Feb 2009, 21:45
Forum: CDendro General Discussion
Topic: Using CDendro to analyze tree growth with climatic trends
Replies: 2
Views: 10278

Re: Using CDendro to analyze tree growth with climatic trends

I am working on a project that involves comparing white spruce growth with climatic patterns such as temperature and precipiation trends. I'm looking for some advice on how to do this using the CDendro program. I collect three white spruce cores from 43 different sites. I want to create a mean grow...
by Lars-Ake
07 Feb 2009, 00:50
Forum: CooRecorder General Discussion
Topic: The development (test) version of CooRecorder
Replies: 5
Views: 10346

The development (test) version of CooRecorder

There is now a new develpment version of CooRecorder available for testing. The mechanism for "Catching the ring width data underlying a plotted curve" has been somewhat extended. When you have a curve without yearly markers, you can now get vertical help lines drawn across your diagram, l...
by Lars-Ake
04 Feb 2009, 13:03
Forum: Dendrochronology in general
Topic: Questions raised by the Hollstein data
Replies: 12
Views: 27453

Questions raised by the Hollstein data

Related to my thoughts about the Hollstein data, I found this: http://hal.archives-ouvertes.fr/docs/00/10/97/51/PDF/Fribourg-TRACE2005.pdf Technically and statistically, I do not understand exactly what the authors have done except for putting a lot of measurments together to form proper reference c...
by Lars-Ake
01 Feb 2009, 00:46
Forum: About this forum
Topic: How to make a contribution with an image on this forum
Replies: 0
Views: 6696

How to make a contribution with an image on this forum

Subject: How to make a posting - how to insert an image? Here are some tips if you are new to this type of phpBB based forum and want to make a posting: Images have to be stored on a server on the internet. Either you can have that image stored somewhere on your "homepage server" - or bett...

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