{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:59.709215", "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": "2021-Jun-09_to_2021-Jun-14_38.0_-17.5"}, "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": 2021060000369}, "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": "June 09 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 14 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 91063.3913981954}, "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": -17.5}, "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": 38.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.0, -16.75], [38.53, -16.97], [38.75, -17.5], [38.53, -18.03], [38.0, -18.25], [37.47, -18.03], [37.25, -17.5], [37.47, -16.97], [38.0, -16.75]]]]}, "2021-06-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.75, -20.0], [37.97, -19.47], [38.5, -19.25], [38.75, -19.35], [39.0, -19.25], [39.53, -19.47], [39.75, -20.0], [39.53, -20.53], [39.0, -20.75], [38.75, -20.65], [38.5, -20.75], [37.97, -20.53], [37.75, -20.0]]], [[[37.47, -18.03], [37.25, -17.5], [37.47, -16.97], [38.0, -16.75], [38.53, -16.97], [38.75, -17.5], [38.53, -18.03], [38.0, -18.25], [37.47, -18.03]]]]}, "2021-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.85, -18.25], [36.75, -18.0], [36.97, -17.47], [37.32, -17.32], [37.47, -16.97], [37.82, -16.82], [37.97, -16.47], [38.5, -16.25], [38.75, -16.35], [39.0, -16.25], [39.25, -16.35], [39.32, -16.32], [39.47, -15.97], [40.0, -15.75], [40.53, -15.97], [40.75, -16.5], [40.65, -16.75], [40.75, -17.0], [40.65, -17.25], [40.75, -17.5], [40.65, -17.75], [40.75, -18.0], [40.53, -18.53], [40.18, -18.68], [40.15, -18.75], [40.25, -19.0], [40.03, -19.53], [39.68, -19.68], [39.65, -19.75], [39.75, -20.0], [39.53, -20.53], [39.0, -20.75], [38.75, -20.65], [38.5, -20.75], [37.97, -20.53], [37.75, -20.0], [37.88, -19.7], [37.75, -19.65], [37.5, -19.75], [36.97, -19.53], [36.75, -19.0], [36.85, -18.75], [36.75, -18.5], [36.85, -18.25]]]]}, "2021-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.85, -18.25], [36.75, -18.0], [36.97, -17.47], [37.32, -17.32], [37.47, -16.97], [37.82, -16.82], [37.97, -16.47], [38.5, -16.25], [38.75, -16.35], [38.82, -16.32], [38.97, -15.97], [39.5, -15.75], [39.75, -15.85], [40.0, -15.75], [40.53, -15.97], [40.75, -16.5], [40.65, -16.75], [40.75, -17.0], [40.65, -17.25], [40.68, -17.32], [41.03, -17.47], [41.25, -18.0], [41.03, -18.53], [40.5, -18.75], [40.25, -18.65], [40.18, -18.68], [40.15, -18.75], [40.25, -19.0], [40.03, -19.53], [39.68, -19.68], [39.65, -19.75], [39.75, -20.0], [39.53, -20.53], [39.0, -20.75], 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22.834847132160917, 22.693031462682256, 23.06996999725368]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.312690072034002, 22.707330478114216, 20.678887160754243, 20.386945329066577, 20.40376881191321, 21.851509024843836]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.52857348697097, -1.0526204355013344, -1.077787084401307, -1.318919886052743, -1.437047562031791, -1.0798230786183087]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.52857348697097, -1.101539927459953, -1.3627641953763145, -1.7062647485954585, -1.9494106145223213, -1.276302887830468]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9544284546904758, -1.4198222721492215, -1.50274600133429, -1.832520148219191, -2.0088989794947034, -1.466443213848664]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9544284546904758, -1.4639806946843845, -1.8073899388132983, -2.4154458907367182, -2.8652425261285255, -1.818639530608239]}}