NOAA/WDS Paleoclimatology - Slonosky 2002 Paris Monthly Precipitation 1688-2009

Precipitation measurements taken at the Paris Observatory from the 1680s to the 1750s are presented; these values are blended with modern data until 2001. The most striking change in the precipitation patterns over the past 300 years is the change in seasonal distribution; in the late 17th and 18th centuries, summer precipitation accounted for 60% of the yearly total, changing to a uniform seasonal distribution in the 20th century. Winter precipitation has increased by 24 mm/century, while summer precipitation increased by 4 mm/century. The winter of 2000/2001 was the wettest of the past three centuries; the year 2000 recorded the largest amount of precipitation since observations began.

本数据集呈现了1680年至1750年间巴黎天文台（Paris Observatory）获取的降水观测数据，并将该序列与截至2001年的现代观测数据进行了融合整合。过去300年间，降水格局最显著的变化体现在季节分配特征上：17世纪末至18世纪，夏季降水占全年总降水量的比例高达60%，到20世纪时降水分布已转为均匀的季节分配。冬季降水的百年增幅达24毫米，夏季降水百年增幅为4毫米。2000/2001年冬季为过去300年间降水最多的冬季，而2000年则是观测序列启动以来年降水量最高的年份。