{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:03.210007", "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-Dec-01_to_2012-Dec-09_47.5_-16.5"}, "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": 2012120001300}, "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": "December 01 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 09 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 209669.34120849977}, "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": -16.5}, "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": 47.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "47.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 42.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.5, -15.75], [48.03, -15.97], [48.25, -16.5], [48.03, -17.03], [47.5, -17.25], [46.97, -17.03], [46.75, -16.5], [46.97, -15.97], [47.5, -15.75]]]]}, "2012-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, -18.03], [45.25, -17.5], [45.47, -16.97], [46.0, -16.75], [46.53, -16.97], [46.75, -17.5], [46.53, -18.03], [46.0, -18.25], [45.47, -18.03]]], [[[46.75, -13.85], [47.0, -13.75], [47.25, -13.85], [47.5, -13.75], [48.03, -13.97], [48.25, -14.5], [48.15, -14.75], [48.25, -15.0], [48.03, -15.53], [47.68, -15.68], [47.65, -15.75], [47.68, -15.82], [48.03, -15.97], [48.25, -16.5], [48.03, -17.03], [47.5, -17.25], [46.97, -17.03], [46.82, -16.68], [46.47, -16.53], [46.25, -16.0], [46.35, -15.75], [46.32, -15.68], [46.25, -15.65], [46.0, -15.75], [45.47, -15.53], [45.25, -15.0], [45.47, -14.47], [45.82, -14.32], [45.97, -13.97], [46.5, -13.75], [46.75, -13.85]]]]}, "2012-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.47, -17.47], [43.82, -17.32], [43.97, -16.97], [44.32, -16.82], [44.35, -16.75], [44.25, -16.5], [44.47, -15.97], [44.82, -15.82], [44.85, -15.75], [44.75, -15.5], [44.85, -15.25], [44.75, -15.0], [44.97, -14.47], [45.5, -14.25], [45.75, -14.35], [45.82, -14.32], [45.97, -13.97], [46.5, -13.75], [46.75, -13.85], [47.0, -13.75], [47.25, -13.85], [47.5, -13.75], [48.03, -13.97], [48.18, -14.32], [48.53, -14.47], [48.75, -15.0], [48.53, -15.53], [48.18, -15.68], [48.04, -16.0], [48.25, -16.5], [48.03, -17.03], [47.5, -17.25], [47.0, -17.04], [46.63, -17.2], [46.75, -17.5], [46.53, -18.03], [46.0, -18.25], [45.75, -18.15], [45.68, -18.18], [45.53, -18.53], [45.13, -18.7], [45.25, -19.0], [45.03, -19.53], [44.5, -19.75], [44.25, -19.65], [44.0, -19.75], [43.47, -19.53], [43.25, -19.0], [43.46, -18.5], [43.25, -18.0], [43.47, -17.47]]]]}, "2012-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.47, -17.97], [42.82, -17.82], [42.97, -17.47], [43.32, -17.32], [43.46, -17.0], [43.25, -16.5], [43.47, -15.97], [44.0, -15.75], [44.25, -15.85], [44.32, -15.82], [44.47, -15.47], [44.82, -15.32], [44.85, -15.25], [44.75, -15.0], [44.97, -14.47], [45.5, -14.25], [45.75, -14.35], [45.82, -14.32], [45.97, -13.97], [46.5, -13.75], [46.75, -13.85], [47.0, -13.75], [47.25, -13.85], [47.5, -13.75], [48.03, -13.97], [48.18, -14.32], [48.25, -14.35], [48.5, -14.25], [49.03, -14.47], [49.25, -15.0], [49.03, -15.53], [48.68, -15.68], [48.53, -16.03], [48.0, -16.25], [47.75, -16.15], [47.68, -16.18], [47.53, -16.53], [47.18, -16.68], [47.03, -17.03], [46.63, -17.2], [46.75, -17.5], [46.53, -18.03], [46.0, -18.25], [45.75, -18.15], [45.68, -18.18], [45.65, -18.25], [45.75, -18.5], [45.54, -19.0], [45.68, -19.32], [46.03, -19.47], [46.25, -20.0], [46.15, -20.25], [46.25, -20.5], [46.03, -21.03], [45.5, -21.25], [45.25, -21.15], [45.0, -21.25], [44.47, -21.03], [44.25, -20.5], [44.35, -20.25], [44.32, -20.18], [44.25, -20.15], [44.0, -20.25], [43.75, -20.15], [43.5, -20.25], [42.97, -20.03], [42.82, -19.68], [42.47, -19.53], [42.25, -19.0], [42.35, -18.75], [42.25, -18.5], [42.47, -17.97]]]]}, "2012-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.75, -18.0], [41.97, -17.47], [42.5, -17.25], [43.0, -17.46], [43.32, -17.32], [43.35, -17.25], [43.25, -17.0], [43.35, -16.75], [43.25, -16.5], [43.47, -15.97], [44.0, -15.75], [44.25, -15.85], [44.32, -15.82], [44.47, -15.47], [44.82, -15.32], [44.85, -15.25], [44.75, -15.0], [44.97, -14.47], [45.5, -14.25], [45.75, -14.35], [46.0, -14.25], [46.25, -14.35], [46.32, -14.32], [46.47, -13.97], [47.0, -13.75], [47.25, -13.85], [47.5, -13.75], [48.03, -13.97], [48.18, -14.32], [48.25, -14.35], [48.5, -14.25], [49.03, -14.47], [49.25, -15.0], [49.15, -15.25], [49.25, -15.5], [49.15, -15.75], [49.25, -16.0], [49.03, -16.53], [48.5, -16.75], [48.25, -16.65], [48.18, -16.68], [48.03, -17.03], [47.68, -17.18], [47.65, -17.25], [47.75, -17.5], [47.53, -18.03], [47.0, -18.25], [46.75, -18.15], [46.5, -18.25], [46.25, -18.15], [46.0, -18.25], [45.75, -18.15], [45.68, -18.18], [45.65, -18.25], [45.75, -18.5], [45.54, -19.0], [45.68, -19.32], [46.03, -19.47], [46.25, -20.0], [46.15, -20.25], [46.25, -20.5], [46.03, -21.03], [45.5, -21.25], [45.25, -21.15], [45.0, -21.25], [44.47, -21.03], [44.32, -20.68], [43.97, -20.53], [43.82, -20.18], [43.75, -20.15], [43.5, -20.25], [42.97, -20.03], [42.82, -19.68], [42.47, -19.53], [42.25, -19.0], [42.35, -18.75], [42.32, -18.68], [41.97, -18.53], [41.75, -18.0]]]]}, "2012-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.75, -18.0], [41.97, -17.47], [42.5, -17.25], [43.0, -17.46], [43.32, -17.32], [43.35, -17.25], [43.25, -17.0], [43.35, -16.75], [43.25, -16.5], [43.47, -15.97], [44.0, -15.75], [44.25, -15.85], [44.32, -15.82], [44.47, -15.47], [44.82, -15.32], [44.97, -14.97], [45.5, -14.75], [45.75, -14.85], [45.82, -14.82], [45.97, -14.47], [46.5, -14.25], [46.75, -14.35], [47.0, -14.25], [47.25, -14.35], [47.5, -14.25], [47.75, -14.35], [48.0, -14.25], [48.25, -14.35], [48.5, -14.25], [49.03, -14.47], [49.25, -15.0], [49.15, -15.25], [49.25, -15.5], [49.15, -15.75], [49.25, -16.0], [49.03, -16.53], [48.5, -16.75], [48.25, -16.65], [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], [46.75, -18.15], [46.5, -18.25], [46.25, -18.15], [46.0, -18.25], [45.75, -18.15], [45.68, -18.18], [45.65, -18.25], [45.75, -18.5], [45.54, -19.0], [45.68, -19.32], [46.03, -19.47], [46.25, -20.0], [46.15, -20.25], [46.25, -20.5], [46.03, -21.03], [45.5, -21.25], [45.25, -21.15], [45.0, -21.25], [44.47, -21.03], [44.32, -20.68], [43.97, -20.53], [43.82, -20.18], [43.75, -20.15], [43.5, -20.25], [42.97, -20.03], [42.82, -19.68], [42.47, -19.53], [42.25, -19.0], [42.35, -18.75], [42.32, -18.68], [41.97, -18.53], [41.75, -18.0]]]]}, "2012-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.97, -18.53], [41.75, -18.0], [41.97, -17.47], [42.5, -17.25], [43.03, -17.47], [43.25, -18.0], [43.03, -18.53], [42.5, -18.75], [41.97, -18.53]]], [[[43.35, -17.25], [43.25, -17.0], [43.47, -16.47], [43.82, -16.32], [43.97, -15.97], [44.32, -15.82], [44.47, -15.47], [44.82, -15.32], [44.97, -14.97], [45.5, -14.75], [46.03, -14.97], [46.18, -15.32], [46.25, -15.35], [46.32, -15.32], [46.47, -14.97], [47.0, -14.75], [47.25, -14.85], [47.32, -14.82], [47.47, -14.47], [48.0, -14.25], [48.25, -14.35], [48.5, -14.25], [49.03, -14.47], [49.25, -15.0], [49.15, -15.25], [49.25, -15.5], [49.15, -15.75], [49.25, -16.0], [49.03, -16.53], [48.5, -16.75], [48.25, -16.65], [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], [46.75, -18.15], [46.5, -18.25], [46.25, -18.15], [46.0, -18.25], [45.75, -18.15], [45.68, -18.18], [45.65, -18.25], [45.75, -18.5], [45.53, -19.03], [45.18, -19.18], [45.15, -19.25], [45.25, -19.5], [45.15, -19.75], [45.25, -20.0], [45.03, -20.53], [44.5, -20.75], [43.97, -20.53], [43.75, -20.0], [43.85, -19.75], [43.75, -19.5], [43.85, -19.25], [43.75, -19.0], [43.88, -18.7], [43.47, -18.53], [43.25, -18.0], [43.35, -17.75], [43.25, -17.5], [43.35, -17.25]]]]}, "2012-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.97, -18.53], [41.75, -18.0], [41.97, -17.47], [42.5, -17.25], [43.03, -17.47], [43.25, -18.0], [43.03, -18.53], [42.5, -18.75], [41.97, -18.53]]], [[[46.82, -15.32], [46.97, -14.97], [47.5, -14.75], [47.75, -14.85], [48.0, -14.75], [48.25, -14.85], [48.5, -14.75], [49.03, -14.97], [49.25, -15.5], [49.03, -16.03], [48.68, -16.18], [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], [46.75, -18.15], [46.5, -18.25], [45.97, -18.03], [45.75, -17.5], [45.97, -16.97], [46.38, -16.8], [46.25, -16.5], [46.35, -16.25], [46.25, -16.0], [46.47, -15.47], [46.82, -15.32]]]]}, "2012-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.5, -16.25], [48.03, -16.47], [48.25, -17.0], [48.15, -17.25], [48.25, -17.5], [48.03, -18.03], [47.5, -18.25], [46.97, -18.03], [46.75, -17.5], [46.85, -17.25], [46.75, -17.0], [46.97, -16.47], [47.5, -16.25]]], [[[47.97, -16.03], [47.75, -15.5], [47.97, -14.97], [48.5, -14.75], [49.03, -14.97], [49.25, -15.5], [49.03, -16.03], [48.5, -16.25], [47.97, -16.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.2543577433029895}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6471737314992843}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.737126604061075, 28.600356341016948, 28.625021523757596, 28.552633911753503, 28.96936003378289, 28.989672288178724, 28.997625721773716, 28.69678610688436, 26.718643368623304]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.737126604061075, 30.205434852264716, 30.61813848149899, 30.35031422380024, 31.547350342716754, 31.530026290575563, 31.4336263230158, 30.337670459939034, 27.92927793706997]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9570700384682596, 1.3683551762754755, 1.4229966427001255, 1.3591776755555987, 1.7513650749719665, 1.833121546848346, 1.7969255046904236, 1.6941118412380678, 1.609556901881452]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9570700384682596, 1.8866345434033747, 2.2822510501754323, 2.488197027296792, 3.091188275759521, 3.2543577433029895, 3.107597750523439, 2.385813948486259, 1.7962720220108963]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6574215972188089, 1.675312007843071, 1.6389453236611928, 1.6017287806140053, 1.9077559992241173, 1.99059360309134, 1.7933525355954558, 1.5023933960202585, 1.4805188191222376]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6574215972188089, 2.1620592859441223, 2.0842284116069316, 2.2783995029251716, 2.7631029694357765, 2.8274421502722955, 2.6287245431462085, 2.00451821496792, 1.5918735895862524]}}