Simple ITRDB search (TreeRings only)
The International Tree-Ring Data Bank (ITRDB) @NOAA
Serach in the ITRDB – intro
ITRDB is often the first place to look for a suitable dendro reference. Unfortunately I often have found its ordinary interface a bit hard, why I developed this tool. It is intended for searching treering data only, not for e.g climate reconstructions or other types of studies.
- GeoCoordinates: Define your area of interest by giving a limiting frame for maximum lat (N & S) and long (W & E). Use negative values for western and southern hemisphere. (On the map, but not in the list, the studies are shown a little bit – up to ~100 m – offset from the given coordinates in order to avoid the points hiding each other and making them unclicable when same coordinates are given for more than one study.)
- Elevation: Usually better to leave empty as altitude is missing in some studies.
- Timespan: Define a span and all studies with data in this span will show up. When working with historical material it is often desired to avoid studies with data only for too recent (or too old) periods.
- Investigators If you search for studies by some particular researcher(s), use the last name only. If more than one is desired, separate with pipes (|), i.e "or". In the list only the first author will show up, despite who you searced for. To see the rest of them, please click the link.
- Species: Use the fourletters codes. There are no way to define wildcards, so to get all oak studies in northern Europe you need to define QURO|QUPE|QUSP, i.e Quercus robur, Quercus petraea or Quercus ssp. When searching in areas where you are not sure of the exact species it may be better to leave blank to see anything.
The background map is the OpenSourceMap (OSM) via quelltextlich.at which provides the KML showing service. Your search result KML-file will be available for 12 hours only.