Data Search:

Welcome to data search site by ERAN Database. You can search raw data in some DOI dataset as appeared at http://www.ied.tsukuba.ac.jp/database/ and already published data at outside source of our site.
You need to select radionuclides and sample type, then make decision about geographical region of data as latitude, longitude and altitude/depth of the sample. You also select duration of the data you want to know.
The search result contain DOI number and data record ID in original dataset(s) to identify original data if you need to know more. The search results also contain latitude, longitude, altitude/depth and time for radioactivity concentration with uncertainty those you want to know. Therefore, the search results can stand alone for research purpose.
You also need to agree when you use downloaded data in publication, you will adequately acknowledge the source of the data, specifically the data provider.
Please enjoy search results and use for your research works.


Select a Radionuclide and Sample Type.

Radionuclide:
Sample Type:

Select the value of Latitude and Longitude in decimal.

Latitude (xlat:from -90 degree South to 90 degree North): between . and .
Longitude (from -180 degree West to 180 degree East): between . and .
※To select the value from the map, Click here.

Select the value of Depth or Altitude in decimal.

Sampling Depth or Altitude (in kilometer): between . and .
*Click SURFACE radio button to search the data which does not have depth or altitude data but was observed on surface of the spot.