Ledgers of meteorological ground observations at weather stations by Japan Meteorological Agency is archived in the IIIF format and provided by IIIF Curation Viewer for easier browsing. The number of images is 4,890,691.

1. Ledgers of Meteorological Ground Observations

Overview of Data by Type

	Type	Number	Images	Start	End
1	気象月表	474	285,602	1879年01月	1961年12月
2	気象月表原簿	1,950	1,018,277	1878年01月	1966年12月
3	地上気象観測月原簿	10	71,858	1980年	1989年
4	普通気候観測月原簿	2,962	2,308,708	1953年01月	1982年12月
5	区内気象観測原簿	1,574	727,272	1898年01月	1979年06月
6	区内気象観測毎時降水量原簿	965	478,974	1950年01月	1978年12月

Search by Place and Year

	Type	Name	Points	Period

Search by Filename

	Name	Image

2. License

This archive uses the Creative Commons Attribution License 4.0 (CC BY). Please add the following attribution when using the data.

Source: Japan Meterological Agency (Name of the material), Modified by: CODH "Historical Big Data" / NII "Digital Typhoon"

3. Related Information

気象観測統計の解説 - 気象庁

4. Support

This archive was supported by the following grants.

ROIS-DS-JOINT (027RP2021), Analysis of spatio-temporal patterns of climate which brought poor harvest in eastern Japan by using documentary records, PI: MASUDA Kooiti
ROIS-DS-JOINT (032RP2020), Study on quantification of historical weather records, PI: SHO Kenjiro
JSPS KAKENHI (JP22H04938), Generation of Millennium Atmospheric Reanalysis Product, PI: YOSHIMURA Kei
JSPS KAKENHI (JP21H03776), Construction of the factor analysis system for the mortality crisis in northeast Japan during the 18-19th century, PI: KAWAGUCHI Hiroshi
JSPS KAKENHI (JP20K01152), Reconstruction of the solar radiation with a high spatial and temporal resolution based on weather descriptions in historical diaries during the Edo era, PI: ICHINO Mika

5. News

2023-01-27: At the 20th Historical Big Data Special Interest Group Meeting, I presented Ledger Archive of Meteorological Ground Observations: Present Status and Future Challenges.
2022-10-01: IIIF Curation Viewer was improved to show the Canvas ID for each ledger image.
2022-09-17: Added "Search by Filename".
2022-08-31: The official version was released. The number of images is 4,890,691.
2020-11-16: A prototype (Tokyo, Nagoya, Hikone, Kyoto, Osaka) was released.

6. Historical Data Archive

This archive is constructed as a part of Historical Big Data project promoted by ROIS-DS Center for Open Data in the Humanities.

Digital Typhoon: The Ledger Archive of Meteorological Ground Observations