{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:19.055357", "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": "2015-Feb-23_to_2015-Feb-28_36.0_-18.0"}, "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": 2015020000934}, "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": "February 23 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 28 2015"}, "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": 73732.91108507992}, "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": ["Malawi", "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": -18.0}, "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": 36.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 33.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.25, -15.5], [33.47, -14.97], [34.0, -14.75], [34.53, 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[38.5, -16.75], [39.03, -16.97], [39.25, -17.5], [39.03, -18.03], [38.68, -18.18], [38.53, -18.53], [38.18, -18.68], [38.03, -19.03], [37.5, -19.25], [37.25, -19.15], [37.0, -19.25], [36.75, -19.15], [36.5, -19.25], [36.25, -19.15], [36.0, -19.25], [35.47, -19.03], [35.32, -18.68], [35.25, -18.65], [35.0, -18.75], [34.47, -18.53], [34.25, -18.0], [34.35, -17.75], [34.32, -17.68], [33.97, -17.53], [33.75, -17.0], [33.85, -16.75], [33.75, -16.5], [33.85, -16.25], [33.82, -16.18], [33.47, -16.03], [33.25, -15.5]]]]}, "2015-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.25, -15.5], [33.47, -14.97], [34.0, -14.75], [34.53, -14.97], [34.68, -15.32], [34.75, -15.35], [35.0, -15.25], [35.53, -15.47], [35.68, -15.82], [36.03, -15.97], [36.25, -16.5], [36.15, -16.75], [36.2, -16.87], [36.5, -16.75], [36.75, -16.85], [37.0, -16.75], [37.5, -16.96], [38.0, -16.75], [38.25, -16.85], [38.5, -16.75], [39.03, -16.97], [39.25, -17.5], [39.03, -18.03], [38.68, -18.18], [38.53, 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25.025457658854464, 25.8154501917399, 25.344186007529117, 25.32397230497571]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.87474549688153, 22.620870308765006, 22.59505211095609, 24.90293166768339, 25.17743468634916, 25.32397230497571]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7223281505766517, -2.1688474895013314, -1.7614407928507398, -1.2756128290145483, -1.5895395812081763, -1.5698016638592094]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.018354141193072, -3.7609497701782857, -2.6572152387697656, -1.6457668294939367, -1.7705154607829172, -1.5698016638592094]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6077394342492457, -1.480442195209294, -1.2724304362588013, -1.306552291130311, -1.2689230195792598, -1.191077148227945]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3173059572049572, -1.8844628983171101, -1.4869480629747038, -1.491636594201616, -1.3462638377575884, -1.191077148227945]}}