Fire Weather Index - ERA-Interim

The Fire Weather Index (FWI) is a numeric rating of fire intensity, dependent on weather conditions. This is a good indicator of fire danger because it contains both a component of fuel availability (drought conditions) and a measure of ease of spread. This is part of a larger dataset providing gridded field calculations from the Canadian Fire Weather Index System using weather forcings from the European Centre for Medium-range Weather Forecast (ECMWF) ERA-Interim reanalysis dataset (Vitolo et al., 2019). The dataset has been developed through a collaboration between the Joint Research Centre and ECMWF under the umbrella of the Global Wildfires Information System (GWIS), a joint initiative of the GEO and the Copernicus Work Programs. The whole dataset consists of seven indices, each of which describes a different aspect of the effect that fuel moisture and wind have on fire ignition probability and its behavior, if started. The indices are called: Fine Fuel Moisture Code (FFMC), Duff Moisture Code (DMC), Drought Code (DC), Initial Spread Index (ISI), Build Up Index (BUI), Fire Weather Index (FWI) and Daily Severity Rating (DSR). For convenience, each index is archived separately. This dataset can be manipulated using the caliver R package (Vitolo et al. 2017, Vitolo et al. 2018). Details: File format: netcdf4 Coordinate system: World Geodetic System 1984 (also known as WGS 1984, EPSG:4326). Longitude range: [-180, +180] Temporal resolution: 1 day Spatial resolution: 0.7 degrees (~80 Km) Spatial coverage: Global Time span: from 1980-01-01 to 2018-06-30森林火险气象指数（Fire Weather Index, FWI）是基于天气条件的火灾强度数值评级指标。该指标可有效表征火灾危险程度，因其同时涵盖了可燃物可用性（即干旱状况）组分与火势蔓延难易程度的度量。 本数据集为加拿大森林火险气象指数系统（Canadian Fire Weather Index System）格点场计算结果的子集，其气象强迫数据取自欧洲中期天气预报中心（European Centre for Medium-range Weather Forecast, ECMWF）的ERA-Interim再分析数据集（Vitolo等，2019）。该数据集由联合研究中心（Joint Research Centre）与欧洲中期天气预报中心在全球野火信息系统（Global Wildfires Information System, GWIS）框架下合作开发，而全球野火信息系统是地球观测组织（GEO）与哥白尼工作计划（Copernicus Work Programs）的联合倡议项目。完整数据集包含7个指数，各自描述了可燃物湿度与风对火灾引燃概率及起火后行为的不同影响维度。这7个指数分别为：细可燃物湿度码（Fine Fuel Moisture Code, FFMC）、腐殖质湿度码（Duff Moisture Code, DMC）、干旱码（Drought Code, DC）、初始蔓延指数（Initial Spread Index, ISI）、蓄积指数（Build Up Index, BUI）、森林火险气象指数（Fire Weather Index, FWI）以及每日严重度评级（Daily Severity Rating, DSR）。为便于使用，每个指数均单独归档存储。 用户可通过caliver R包（Vitolo等，2017；Vitolo等，2018）对本数据集进行处理与操作。 详细参数： 文件格式：netCDF4 坐标系：世界大地测量系统1984（又称WGS 1984，EPSG:4326） 经度范围：[-180, +180] 时间分辨率：每日 空间分辨率：0.7度（约80千米） 空间覆盖范围：全球 时间跨度：1980年1月1日至2018年6月30日