Department of Geography and Environmental Sustainability, University of Oklahoma, Norman, OK, 73019, USA.
Sci Data. 2022 May 16;9(1):208. doi: 10.1038/s41597-022-01337-y.
Malaria epidemics can be triggered by fluctuations in temperature and precipitation that influence vector mosquitoes and the malaria parasite. Identifying and monitoring environmental risk factors can thus provide early warning of future outbreaks. Satellite Earth observations provide relevant measurements, but obtaining these data requires substantial expertise, computational resources, and internet bandwidth. To support malaria forecasting in Ethiopia, we developed software for Retrieving Environmental Analytics for Climate and Health (REACH). REACH is a cloud-based application for accessing data on land surface temperature, spectral indices, and precipitation using the Google Earth Engine (GEE) platform. REACH can be implemented using the GEE code editor and JavaScript API, as a standalone web app, or as package with the Python API. Users provide a date range and data for 852 districts in Ethiopia are automatically summarized and downloaded as tables. REACH was successfully used in Ethiopia to support a pilot malaria early warning project in the Amhara region. The software can be extended to new locations and modified to access other environmental datasets through GEE.
疟疾疫情可能由影响病媒蚊子和疟原虫的温度和降水波动引发。因此，识别和监测环境风险因素可以为未来的疫情爆发提供预警。卫星地球观测提供了相关测量数据，但获取这些数据需要大量专业知识、计算资源和互联网带宽。为了支持埃塞俄比亚的疟疾预测，我们开发了用于检索气候和健康环境分析（REACH）的软件。REACH 是一个基于云的应用程序，用于使用谷歌地球引擎（GEE）平台访问陆地表面温度、光谱指数和降水数据。REACH 可以使用 GEE 代码编辑器和 JavaScript API 实现，也可以作为独立的网络应用程序或带有 Python API 的软件包实现。用户提供一个日期范围，埃塞俄比亚的 852 个地区的数据将自动汇总并下载为表格。REACH 在埃塞俄比亚成功用于支持阿姆哈拉地区的一个疟疾早期预警试点项目。该软件可以扩展到新的地点，并通过 GEE 进行修改以访问其他环境数据集。
