AIR TEMPERATURE, Surface pressure, and others collected from FIXED STATIONS OF CANADA in Canada from 1768-09-11 to 1884-02-29 (NCEI Accession 0304217)

Historical weather journals from across Canada, spanning 1768 - 1884, have been transcribed from handwritten records into machine readable formats. The NORTHERN (Nineteenth-century Overseas Records Transcribed for Historical Environmental Reconstruction in the North) project transcribed nearly 2 million weather observations from 45 locations. The original documents are in archives outside Canada, including the US National Archives and Records Administration (NARA), the National Centres for Environmental Information (NCEI) and the United Kingdom Meteorological Office (UKMO). Observers recorded from three to twenty weather variables, in most cases two or three times daily. Validation procedures are carried out with export files produced in both the original format and in SI units. Observations of pressure, temperature, precipitation, snow depth, cloud cover, cloud type, wind direction and wind force are transcribed along with detailed descriptions of events including fires, floods, ice formation and break up, storms and other weather phenomena.

涵盖1768年至1884年的加拿大全境历史气象日志，已从手写档案转录为机器可读格式。NORTHERN（为北方历史环境重建转录的19世纪海外档案，Nineteenth-century Overseas Records Transcribed for Historical Environmental Reconstruction in the North）项目从45个观测站点转录了近200万条气象观测记录。原始档案藏于加拿大境外的多家档案馆，包括美国国家档案与文件署（NARA）、美国国家环境信息中心（NCEI）以及英国气象局（UKMO）。观测人员多数情况下每日开展2至3次观测，单次记录3至20项气象变量。项目采用原始格式与国际单位制（SI）两种格式生成的导出文件开展验证流程。本次转录内容涵盖气压、气温、降水量、积雪深度、云量、云状、风向与风力等观测数据，同时附带火灾、洪水、结冰与融冰、风暴及其他天气现象的详细记述。