{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:00.503806", "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": "2011-Nov-23_to_2011-Dec-05_49.5_-14.5"}, "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": 2011110002493}, "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": "November 23 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 05 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 13}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 103978.84530759108}, "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": ["Madagascar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Madagascar"]}, "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": -14.5}, "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": 49.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "49.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 45.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 50.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.46, -16.5], [46.25, -16.0], [46.46, -15.5], [46.25, -15.0], [46.47, -14.47], [47.0, -14.25], [47.25, -14.35], [47.5, -14.25], [48.03, -14.47], [48.18, -14.82], [48.53, -14.97], [48.75, -15.5], [48.65, -15.75], [48.75, -16.0], [48.53, -16.53], [48.18, -16.68], [48.15, -16.75], [48.25, -17.0], [48.15, -17.25], [48.25, -17.5], [48.03, -18.03], [47.5, -18.25], [47.25, -18.15], [47.0, -18.25], [46.47, -18.03], [46.25, -17.5], [46.35, -17.25], [46.25, -17.0], [46.46, -16.5]]]]}, "2011-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.46, -16.5], [46.25, -16.0], [46.46, -15.5], [46.25, -15.0], [46.47, -14.47], [47.0, -14.25], [47.25, -14.35], [47.5, -14.25], [48.03, -14.47], [48.18, -14.82], [48.53, -14.97], [48.75, -15.5], [48.65, -15.75], [48.75, -16.0], [48.53, -16.53], [48.18, -16.68], [48.15, -16.75], [48.25, -17.0], [48.15, -17.25], [48.25, -17.5], [48.03, -18.03], [47.5, -18.25], [47.25, -18.15], [47.0, -18.25], [46.47, -18.03], [46.25, -17.5], [46.35, -17.25], [46.25, -17.0], [46.46, -16.5]]]]}, "2011-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.46, -16.5], [46.25, -16.0], [46.46, -15.5], [46.25, -15.0], [46.47, -14.47], [47.0, -14.25], [47.25, -14.35], [47.5, -14.25], [48.03, -14.47], [48.18, -14.82], [48.53, -14.97], [48.75, -15.5], [48.65, -15.75], [48.75, -16.0], [48.53, -16.53], [48.18, -16.68], [48.15, -16.75], [48.25, -17.0], [48.15, -17.25], [48.25, -17.5], [48.03, -18.03], [47.5, -18.25], [47.25, -18.15], [47.0, -18.25], [46.47, -18.03], [46.25, -17.5], [46.35, -17.25], [46.25, -17.0], [46.46, -16.5]]]]}, "2011-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.38, -16.7], [46.97, -16.53], [46.75, -16.0], [46.97, -15.47], [47.5, -15.25], [48.0, -15.46], [48.32, -15.32], [48.35, -15.25], [48.25, -15.0], [48.35, -14.75], [48.25, -14.5], [48.47, -13.97], [48.82, -13.82], [48.97, -13.47], [49.5, -13.25], [50.03, -13.47], [50.25, -14.0], [50.15, -14.25], [50.25, -14.5], [50.03, -15.03], [49.68, -15.18], [49.65, -15.25], [49.75, -15.5], [49.53, -16.03], [49.18, -16.18], [49.03, -16.53], [48.63, -16.7], [48.75, -17.0], [48.65, -17.25], [48.75, -17.5], [48.53, -18.03], [48.0, -18.25], [47.47, -18.03], [47.25, -17.5], [47.35, -17.25], [47.25, -17.0], [47.38, -16.7]]]]}, "2011-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.47, -16.47], [47.88, -16.3], [47.75, -16.0], [47.97, -15.47], [48.32, -15.32], [48.35, -15.25], [48.25, -15.0], [48.35, -14.75], [48.25, -14.5], [48.47, -13.97], [48.82, -13.82], [48.97, -13.47], [49.5, -13.25], [50.03, -13.47], [50.25, -14.0], [50.15, -14.25], [50.25, -14.5], [50.03, -15.03], [49.68, -15.18], [49.65, -15.25], [49.75, -15.5], [49.53, -16.03], [49.18, -16.18], [49.03, -16.53], [48.63, -16.7], [48.75, -17.0], [48.65, -17.25], [48.75, -17.5], [48.53, -18.03], [48.0, -18.25], [47.47, -18.03], [47.25, -17.5], [47.35, -17.25], [47.25, -17.0], [47.47, -16.47]]]]}, "2011-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.35, -17.25], [46.25, -17.0], [46.47, -16.47], [47.0, -16.25], [47.25, -16.35], [47.5, -16.25], [47.75, -16.35], [47.88, -16.3], [47.75, -16.0], [47.97, -15.47], [48.32, -15.32], [48.35, -15.25], [48.25, -15.0], [48.35, -14.75], [48.25, -14.5], [48.47, -13.97], [48.82, -13.82], [48.97, -13.47], [49.5, -13.25], [50.03, -13.47], [50.25, -14.0], [50.15, -14.25], [50.18, -14.32], [50.53, -14.47], [50.75, -15.0], [50.53, -15.53], [50.0, -15.75], [49.7, -15.62], [49.53, -16.03], [49.18, -16.18], [49.03, -16.53], [48.63, -16.7], [48.75, -17.0], [48.65, -17.25], [48.75, -17.5], [48.53, -18.03], [48.0, -18.25], [47.75, -18.15], [47.68, -18.18], [47.53, -18.53], [47.0, -18.75], [46.47, -18.53], [46.25, -18.0], [46.35, -17.75], [46.25, -17.5], [46.35, -17.25]]]]}, "2011-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.35, -16.25], [45.25, -16.0], [45.35, -15.75], [45.25, -15.5], [45.47, -14.97], [45.82, -14.82], [45.97, -14.47], [46.5, -14.25], [47.03, -14.47], [47.2, -14.87], [47.32, -14.82], [47.47, -14.47], [48.0, -14.25], [48.25, -14.35], [48.5, -14.25], [48.8, -14.37], [48.97, -13.97], [49.5, -13.75], [50.03, -13.97], [50.18, -14.32], [50.53, -14.47], [50.75, -15.0], [50.53, -15.53], [50.0, -15.75], [49.47, -15.53], [49.32, -15.18], [49.2, -15.12], [49.03, -15.53], [48.68, -15.68], [48.53, -16.03], [48.18, -16.18], [48.15, -16.25], [48.25, -16.5], [48.15, -16.75], [48.25, -17.0], [48.15, -17.25], [48.25, -17.5], [48.03, -18.03], [47.68, -18.18], [47.53, -18.53], [47.0, -18.75], [46.47, -18.53], [46.25, -18.0], [46.35, -17.75], [46.32, -17.68], [46.25, -17.65], [46.0, -17.75], [45.47, -17.53], [45.25, -17.0], [45.35, -16.75], [45.25, -16.5], [45.35, -16.25]]]]}, "2011-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.35, -16.25], [45.25, -16.0], [45.35, -15.75], [45.25, -15.5], [45.47, -14.97], [45.82, -14.82], [45.97, -14.47], [46.5, -14.25], [47.03, -14.47], [47.2, -14.87], [47.32, -14.82], [47.47, -14.47], [48.0, -14.25], [48.25, -14.35], [48.5, -14.25], [48.8, -14.37], [48.97, -13.97], [49.5, -13.75], [50.03, -13.97], [50.18, -14.32], [50.53, -14.47], [50.75, -15.0], [50.53, -15.53], [50.0, -15.75], [49.47, -15.53], [49.32, -15.18], [49.2, -15.12], [49.03, -15.53], [48.68, -15.68], [48.54, -16.0], [48.75, -16.5], [48.53, -17.03], [48.18, -17.18], [48.15, -17.25], [48.25, -17.5], [48.15, -17.75], [48.25, -18.0], [48.03, -18.53], [47.5, -18.75], [47.25, -18.65], [47.0, -18.75], [46.47, -18.53], [46.25, -18.0], [46.35, -17.75], [46.32, -17.68], [46.25, -17.65], [46.0, -17.75], [45.47, -17.53], [45.25, -17.0], [45.35, -16.75], [45.25, -16.5], [45.35, -16.25]]]]}, "2011-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.35, -16.25], [45.25, -16.0], [45.35, -15.75], [45.25, -15.5], [45.47, -14.97], [45.82, -14.82], [45.97, -14.47], [46.5, -14.25], [47.03, -14.47], [47.2, -14.87], [47.32, -14.82], [47.47, -14.47], [48.0, -14.25], [48.25, -14.35], [48.5, -14.25], [48.8, -14.37], [48.85, -14.25], [48.75, -14.0], [48.97, -13.47], [49.5, -13.25], [50.03, -13.47], [50.25, -14.0], [50.15, -14.25], [50.18, -14.32], [50.53, -14.47], [50.75, -15.0], [50.53, -15.53], [50.0, -15.75], [49.47, -15.53], [49.32, -15.18], [49.2, -15.12], [49.03, -15.53], [48.68, -15.68], [48.54, -16.0], [48.75, -16.5], [48.53, -17.03], [48.18, -17.18], [48.15, -17.25], [48.25, -17.5], [48.15, -17.75], [48.25, -18.0], [48.03, -18.53], [47.5, -18.75], [47.25, -18.65], [47.0, -18.75], [46.47, -18.53], [46.25, -18.0], [46.35, -17.75], [46.32, -17.68], [46.25, -17.65], [46.0, -17.75], [45.47, -17.53], [45.25, -17.0], [45.35, -16.75], [45.25, -16.5], [45.35, -16.25]]]]}, "2011-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.25, -17.5], [46.47, -16.97], [47.0, -16.75], [47.25, -16.85], [47.38, -16.8], [47.25, -16.5], [47.46, -16.0], [47.25, -15.5], [47.35, -15.25], [47.25, -15.0], [47.47, -14.47], [48.0, -14.25], [48.25, -14.35], [48.5, -14.25], [48.8, -14.37], [48.85, -14.25], [48.75, -14.0], [48.97, -13.47], [49.5, -13.25], [50.03, -13.47], [50.25, -14.0], [50.15, -14.25], [50.25, -14.5], [50.03, -15.03], [49.5, -15.25], [49.2, -15.12], [49.03, -15.53], [48.68, -15.68], [48.54, -16.0], [48.75, -16.5], [48.53, -17.03], [48.13, -17.2], [48.25, -17.5], [48.15, -17.75], [48.25, -18.0], [48.03, -18.53], [47.5, -18.75], [46.97, -18.53], [46.82, -18.18], [46.47, -18.03], [46.25, -17.5]]]]}, "2011-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.97, -13.47], [49.5, -13.25], [50.03, -13.47], [50.18, -13.82], [50.53, -13.97], [50.75, -14.5], [50.53, -15.03], [50.0, -15.25], [49.75, -15.15], [49.5, -15.25], [48.97, -15.03], [48.75, -14.5], [48.85, -14.25], [48.75, -14.0], [48.97, -13.47]]]]}, "2011-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.0, -13.75], [50.53, -13.97], [50.75, -14.5], [50.53, -15.03], [50.0, -15.25], [49.47, -15.03], [49.25, -14.5], [49.47, -13.97], [50.0, -13.75]]]]}, "2011-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.0, -13.75], [50.53, -13.97], [50.75, -14.5], [50.53, -15.03], [50.0, -15.25], [49.47, -15.03], [49.25, -14.5], [49.47, -13.97], [50.0, -13.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.203852547765507}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8969170044113288}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.10344123333772, 29.277496549631053, 28.945838686286322, 25.11338481426776, 25.042215258099247, 25.286595362179696, 28.310591792531397, 28.313125665286236, 28.017163752012607, 25.961377562106748, 24.010941508119856, 26.462689783109, 26.170156763008436]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.318211482074844, 31.32686791378387, 31.034813225508117, 30.527879267039282, 27.035142248313377, 29.33329169119162, 30.928538879295502, 31.22159238661476, 31.119621135124987, 29.74134990234279, 26.132332208807952, 26.462689783109, 26.170156763008436]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9054286516583023, 2.084496474945292, 1.7697739990752552, 1.9322922193112189, 2.516067961281429, 1.8136583499580305, 1.7552945896265106, 2.025015097111902, 1.9388068488883414, 1.527747397673017, 1.449231877294513, 1.4123674904654422, 1.1078003728273984]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.395826498774511, 2.673026401321863, 2.3895270616932294, 2.7902413087070386, 3.203852547765507, 2.1621596177980678, 2.6249685506838887, 3.190081480932463, 3.0515292718658884, 2.0653207248470267, 1.788104162158504, 1.4123674904654422, 1.1078003728273984]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5880719431373846, 1.7369290358957297, 1.452097637016441, 1.7068100473813392, 2.2563846791868727, 1.6068912096636132, 1.6179567412258713, 1.8894893055568558, 1.8461927796009474, 1.5776318733002266, 1.7441398541503965, 1.8528426020961744, 1.4224602991682591]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0733808579898634, 1.952971469765801, 1.7793510170608116, 2.408737015163098, 2.873312381648641, 2.275267612104371, 2.1207857431580934, 2.629448301949953, 2.788105794573539, 2.0269856193074816, 2.1202663142136524, 1.8528426020961744, 1.4224602991682591]}}