{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:05.002575", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2014-Apr-18_to_2014-Apr-22_41.0_-12.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2014040000700}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "April 18 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 22 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 78288.02358531755}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Mozambique"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["Mozambique Channel"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -12.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 41.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "41.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 39.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 42.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -15.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.25, -11.0], [39.47, -10.47], [40.0, -10.25], [40.25, -10.35], [40.5, -10.25], [41.03, -10.47], [41.25, -11.0], [41.15, -11.25], [41.18, -11.32], [41.53, -11.47], [41.75, -12.0], [41.65, -12.25], [41.75, -12.5], [41.65, -12.75], [41.75, -13.0], [41.65, -13.25], [41.68, -13.32], [42.03, -13.47], [42.25, -14.0], [42.03, -14.53], [41.5, -14.75], [41.25, -14.65], [41.0, -14.75], [40.47, -14.53], [40.32, -14.18], [39.97, -14.03], [39.75, -13.5], [39.85, -13.25], [39.75, -13.0], [39.85, -12.75], [39.75, -12.5], [39.85, -12.25], [39.75, -12.0], [39.85, -11.75], [39.82, -11.68], [39.47, -11.53], [39.25, -11.0]]]]}, "2014-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.75, -14.5], [38.97, -13.97], [39.32, -13.82], [39.47, -13.47], [39.82, -13.32], [39.85, -13.25], [39.75, -13.0], [39.85, -12.75], [39.75, -12.5], [39.85, -12.25], [39.75, -12.0], [39.85, -11.75], [39.82, -11.68], [39.47, -11.53], [39.25, -11.0], [39.47, -10.47], [40.0, -10.25], [40.25, -10.35], [40.5, -10.25], [41.03, -10.47], [41.25, -11.0], [41.15, -11.25], [41.18, -11.32], [41.53, -11.47], [41.75, -12.0], [41.65, -12.25], [41.75, -12.5], [41.65, -12.75], [41.75, -13.0], [41.65, -13.25], [41.68, -13.32], [42.03, -13.47], [42.25, -14.0], [42.03, -14.53], [41.5, -14.75], [41.25, -14.65], [41.18, -14.68], [41.03, -15.03], [40.68, -15.18], [40.53, -15.53], [40.0, -15.75], [39.47, -15.53], [39.32, -15.18], [38.97, -15.03], [38.75, -14.5]]]]}, "2014-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.75, -14.5], [38.97, -13.97], [39.32, -13.82], [39.47, -13.47], [39.82, -13.32], [39.85, -13.25], [39.75, -13.0], [39.85, -12.75], [39.75, -12.5], [39.85, -12.25], [39.75, -12.0], [39.85, -11.75], [39.82, -11.68], [39.47, -11.53], [39.25, -11.0], [39.47, -10.47], [40.0, -10.25], [40.25, -10.35], [40.5, -10.25], [41.03, -10.47], [41.25, -11.0], [41.15, -11.25], [41.18, -11.32], [41.25, -11.35], [41.5, -11.25], [41.75, -11.35], [42.0, -11.25], [42.53, -11.47], [42.75, -12.0], [42.65, -12.25], [42.75, -12.5], [42.65, 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"Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.683813806164892}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1568594813415618}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.718943792945424, 24.940213907772204, 25.293507830248586, 25.167869570029723, 25.792670704442287]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.592417727309396, 23.13380135082781, 22.919946094232614, 22.78715510457772, 23.58004083931894]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0111941087247374, -1.2588938480091507, -1.1673166759110551, -1.1884989885544628, -1.0856293310005942]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.4766502083327282, -1.683813806164892, -1.4700029614547816, -1.4201508281515771, -1.2353524502084383]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5920198240414516, -1.8449346535398088, -1.729921852737397, -1.7257864488292625, -1.7182531546356845]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9417732107489494, -2.3826306899386873, -2.2874171793597444, -2.2248954097697817, -2.0095980058097513]}}