Fine Fuel Moisture Code - Era-Interim

The Fine Fuel Moisture Code (FFMC) is a numeric rating of the moisture content of litter and other cured fine fuels. This code is an indicator of the relative ease of ignition and the flammability of fine fuel. 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 (Di Giuseppe et al., 2016). 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, 2018). File format: netcdf4 Coordinate system: World Geodetic System 1984 (also known as WGS 1984, EPSG:4326). Longitude range: [-180, +180] Time span: from 1980-01-01 to 2017-12-31 Temporal resolution: 1 day Spatial resolution: 0.7 degrees (~80 Km) Spatial coverage: Global细燃料湿度码（Fine Fuel Moisture Code，FFMC）是针对枯落物及其他干燥细燃料含水率的数值评级指标，可反映细燃料的相对易点燃性与可燃性。 本数据集为加拿大火天气指数系统（Canadian Fire Weather Index System）网格化野外计算成果的一部分，其气象强迫数据源自欧洲中期天气预报中心（European Centre for Medium-Range Weather Forecasts，ECMWF）的ERA-Interim再分析数据集（Di Giuseppe等，2016）。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）框架下合作研发，而全球野火信息系统是地球观测组织（Group on Earth Observations，GEO）与哥白尼工作计划（Copernicus Work Programs）的联合倡议项目。 整套数据集包含7个指数，分别刻画燃料含水率与风对火灾引燃概率及引燃后火势行为的不同影响维度。这7个指数依次为：细燃料湿度码（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）、火天气指数（Fire Weather Index，FWI）以及日严重度评级（Daily Severity Rating，DSR）。为便于使用，各指数均单独归档存储。用户可借助caliver R包（Vitolo等，2017、2018）对本数据集进行处理。 文件格式：netCDF4 坐标系：世界大地测量系统1984（World Geodetic System 1984，又称WGS 1984，EPSG:4326） 经度范围：[-180, +180] 时间跨度：1980年1月1日至2017年12月31日 时间分辨率：1日 空间分辨率：0.7度（约80千米） 空间覆盖范围：全球