{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:07.738574", "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": "2012-Aug-08_to_2012-Aug-10_35.5_-22.0"}, "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": 2012080000451}, "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": "August 08 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 10 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 51731.979825350536}, "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": -22.0}, "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": 35.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 36.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.85, -20.25], [33.75, -20.0], [33.97, -19.47], [34.5, -19.25], [35.03, -19.47], [35.18, -19.82], [35.25, -19.85], [35.5, -19.75], [36.03, -19.97], [36.25, -20.5], [36.15, -20.75], [36.18, -20.82], [36.53, -20.97], [36.75, -21.5], [36.65, -21.75], [36.68, -21.82], [37.03, -21.97], [37.25, -22.5], [37.03, -23.03], [36.68, -23.18], [36.53, -23.53], [36.0, -23.75], [35.75, -23.65], [35.5, -23.75], [34.97, -23.53], [34.75, -23.0], [34.85, -22.75], [34.82, -22.68], [34.47, -22.53], [34.25, -22.0], [34.35, -21.75], [34.32, -21.68], [33.97, -21.53], [33.75, -21.0], [33.85, -20.75], [33.75, -20.5], [33.85, -20.25]]]]}, "2012-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.85, -20.25], [33.75, -20.0], [33.97, -19.47], [34.5, -19.25], [35.03, -19.47], [35.18, -19.82], [35.25, -19.85], [35.5, -19.75], [36.03, -19.97], [36.25, -20.5], [36.15, -20.75], [36.18, -20.82], [36.53, -20.97], [36.75, -21.5], [36.65, -21.75], [36.68, -21.82], [37.03, -21.97], [37.25, -22.5], [37.03, -23.03], [36.68, -23.18], [36.53, -23.53], [36.0, -23.75], [35.75, -23.65], [35.5, -23.75], [34.97, -23.53], [34.75, -23.0], [34.85, -22.75], [34.82, -22.68], [34.47, -22.53], [34.25, -22.0], [34.35, -21.75], [34.32, -21.68], [33.97, -21.53], [33.75, -21.0], [33.85, -20.75], [33.75, -20.5], [33.85, -20.25]]]]}, "2012-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.85, -20.25], [33.75, -20.0], [33.97, -19.47], [34.5, -19.25], [35.03, -19.47], [35.18, -19.82], [35.25, -19.85], [35.5, -19.75], [36.03, -19.97], [36.25, -20.5], [36.15, -20.75], [36.18, -20.82], [36.53, -20.97], [36.75, -21.5], [36.65, -21.75], [36.68, -21.82], [37.03, -21.97], [37.25, -22.5], [37.03, -23.03], [36.68, -23.18], [36.53, -23.53], [36.0, -23.75], [35.75, -23.65], [35.5, -23.75], [34.97, -23.53], [34.75, -23.0], [34.85, -22.75], [34.82, -22.68], [34.47, -22.53], [34.25, -22.0], [34.35, -21.75], [34.32, -21.68], [33.97, -21.53], [33.75, -21.0], [33.85, -20.75], [33.75, -20.5], [33.85, -20.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.973335345984367}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.707000548326245}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.850856361822366, 17.623600925661037, 19.928427751582092]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.733015607274012, 15.369057859979762, 18.319625490786393]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.9478377791723018, -4.202994506788154, -1.9701693590182794]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.9746297094461625, -5.973335345984367, -2.573445424596173]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7933726696775447, -3.783441976969852, -1.7034342621339784]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1535512813531845, -4.145101997461159, -2.374089650808884]}}