Methane Emissions from Dairy Sources (Vista-CA), State of California, USA, 2019

This dataset provides estimates of methane (CH4) emissions from dairies in California at a resolution of 0.1 degrees (~ 10 km x 10 km) for the year 2019. The mapped sources of dairy CH4 emissions are enteric fermentation and manure management reported in gigagrams per square km per year (Gg km-2 y-1). The sum of the two sources is also provided. These data are in the succession of Vista California (Vista-CA) spatial datasets that have identified and classified potential methane source emitters in California and were created utilizing an assortment of publicly available data sources from local, state, and federal agencies. This dataset can serve as a planning tool for mitigation, a prior for atmospheric observation-based emissions estimates, attribution of emissions to a specific facility, and to validate CH4 emissions reductions from management changes.

本数据集提供了加利福尼亚州奶牛场甲烷（CH4）排放量的估计，以0.1度（约10公里x 10公里）的分辨率呈现，涵盖2019年数据。奶牛场甲烷排放的映射来源包括瘤胃发酵和粪便管理，以每平方公里每年千兆克（Gg km-2 y-1）为单位报告。两种来源的总和亦一并提供。这些数据继Vista California（Vista-CA）空间数据集之后，已识别并分类加利福尼亚州潜在的甲烷排放源，并利用了来自地方、州及联邦机构的多种公开数据源所创建。该数据集可作为减缓策略的规划工具，为基于大气观测的排放量估计提供基准，对特定设施的排放进行归因，以及验证管理变更对甲烷排放减少的影响。