{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:05.053410", "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": "2017-May-12_to_2017-May-20_46.5_-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": 2017050001763}, "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": "May 12 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 20 2017"}, "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": 99443.03387778308}, "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": ["Indian Ocean", "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": 46.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "46.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 47.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -26.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, -23.47], [46.0, -23.25], [46.25, -23.35], [46.5, -23.25], [47.03, -23.47], [47.25, -24.0], [47.15, -24.25], [47.25, -24.5], [47.03, -25.03], [46.5, -25.25], [45.97, -25.03], [45.82, -24.68], [45.47, -24.53], [45.25, -24.0], [45.47, -23.47]]], [[[45.25, -22.0], [45.47, -21.47], [46.0, -21.25], [46.25, -21.35], [46.5, -21.25], [47.03, -21.47], [47.25, -22.0], [47.03, -22.53], [46.5, -22.75], [46.25, -22.65], [46.0, -22.75], [45.47, -22.53], [45.25, -22.0]]]]}, "2017-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.0, -22.75], [46.53, -22.97], [46.68, -23.32], [47.03, -23.47], [47.25, -24.0], [47.15, -24.25], [47.25, -24.5], [47.03, -25.03], [46.5, -25.25], [45.97, -25.03], [45.82, -24.68], [45.47, -24.53], [45.25, -24.0], [45.35, -23.75], [45.25, -23.5], [45.47, -22.97], [46.0, -22.75]]], [[[45.47, -21.47], [46.0, -21.25], [46.25, -21.35], [46.5, -21.25], [47.03, -21.47], [47.25, -22.0], [47.03, -22.53], [46.5, -22.75], [46.25, -22.65], [46.0, -22.75], [45.47, -22.53], [45.25, -22.0], [45.47, -21.47]]]]}, "2017-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.25, -22.5], [44.47, -21.97], [45.0, -21.75], [45.25, -21.85], [45.32, -21.82], [45.47, -21.47], [46.0, -21.25], [46.25, -21.35], [46.5, -21.25], [47.03, -21.47], [47.25, -22.0], [47.03, -22.53], [46.68, -22.68], [46.65, -22.75], [46.75, -23.0], [46.65, -23.25], [46.68, -23.32], [47.03, -23.47], [47.25, -24.0], [47.15, -24.25], [47.25, -24.5], [47.15, -24.75], [47.25, -25.0], [47.03, -25.53], [46.5, -25.75], [45.97, -25.53], [45.75, -25.0], [45.85, -24.75], [45.82, -24.68], [45.47, -24.53], [45.32, -24.18], [44.97, -24.03], [44.75, -23.5], [44.85, -23.25], [44.82, -23.18], [44.47, -23.03], [44.25, -22.5]]]]}, "2017-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, -26.0], [43.97, -25.47], [44.5, -25.25], [44.75, -25.35], [44.82, -25.32], [44.97, -24.97], [45.32, -24.82], [45.35, -24.75], [45.25, -24.5], [45.35, -24.25], [45.32, -24.18], [44.97, -24.03], [44.75, -23.5], [44.85, -23.25], [44.82, -23.18], [44.47, -23.03], [44.32, -22.68], [43.97, -22.53], [43.75, -22.0], [43.97, -21.47], [44.5, -21.25], [44.75, -21.35], [45.0, -21.25], [45.25, -21.35], [45.32, -21.32], [45.47, -20.97], [46.0, -20.75], [46.25, -20.85], [46.5, -20.75], [47.03, -20.97], [47.25, -21.5], [47.15, -21.75], [47.25, -22.0], [47.03, -22.53], [46.68, -22.68], [46.65, -22.75], [46.75, -23.0], [46.65, -23.25], [46.68, -23.32], [47.03, -23.47], [47.25, -24.0], [47.15, -24.25], [47.25, -24.5], [47.15, -24.75], [47.25, -25.0], [47.03, -25.53], [46.5, -25.75], [46.25, -25.65], [46.18, -25.68], [46.03, -26.03], [45.68, -26.18], [45.65, -26.25], [45.75, -26.5], [45.53, -27.03], [45.0, -27.25], [44.47, -27.03], [44.32, -26.68], [43.97, -26.53], [43.75, -26.0]]]]}, "2017-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.97, -24.97], [44.5, -24.75], [44.8, -24.87], [44.97, -24.47], [45.32, -24.32], [45.35, -24.25], [45.32, -24.18], [44.97, -24.03], [44.75, -23.5], [44.85, -23.25], [44.82, -23.18], [44.47, -23.03], [44.32, -22.68], [43.97, -22.53], [43.75, -22.0], [43.97, -21.47], [44.5, -21.25], [44.75, -21.35], [45.0, -21.25], [45.25, -21.35], [45.32, -21.32], [45.47, -20.97], [46.0, -20.75], [46.25, -20.85], [46.5, -20.75], [47.03, -20.97], [47.25, -21.5], [47.15, -21.75], [47.25, -22.0], [47.03, -22.53], [46.68, -22.68], [46.65, -22.75], [46.75, -23.0], [46.65, -23.25], [46.68, -23.32], [47.03, -23.47], [47.25, -24.0], [47.15, -24.25], [47.25, -24.5], [47.15, -24.75], [47.25, -25.0], [47.03, -25.53], [46.68, -25.68], [46.53, -26.03], [46.0, -26.25], [45.75, -26.15], [45.68, -26.18], [45.65, -26.25], [45.75, -26.5], [45.53, -27.03], [45.0, -27.25], [44.47, -27.03], [44.32, -26.68], [43.97, -26.53], [43.75, -26.0], [43.85, -25.75], [43.75, -25.5], [43.97, -24.97]]]]}, "2017-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.97, -24.97], [44.5, -24.75], [44.8, -24.87], [44.97, -24.47], [45.32, -24.32], [45.35, -24.25], [45.25, -24.0], [45.35, -23.75], [45.32, -23.68], [44.97, -23.53], [44.82, -23.18], [44.47, -23.03], [44.32, -22.68], [43.97, -22.53], [43.75, -22.0], [43.97, -21.47], [44.5, -21.25], [44.75, -21.35], [45.0, -21.25], [45.25, -21.35], [45.32, -21.32], [45.47, -20.97], [46.0, -20.75], [46.25, -20.85], [46.32, -20.82], [46.35, -20.75], [46.25, -20.5], [46.35, -20.25], [46.25, -20.0], [46.35, -19.75], [46.25, -19.5], [46.47, -18.97], [47.0, -18.75], [47.53, -18.97], [47.75, -19.5], [47.65, -19.75], [47.75, -20.0], [47.65, -20.25], [47.75, -20.5], [47.65, -20.75], [47.75, -21.0], [47.65, -21.25], [47.68, -21.32], [48.03, -21.47], [48.25, -22.0], [48.03, -22.53], [47.68, -22.68], [47.53, -23.03], [47.0, -23.25], [46.7, -23.12], [46.65, -23.25], [46.68, -23.32], [47.03, -23.47], [47.25, -24.0], [47.15, -24.25], [47.25, -24.5], [47.15, -24.75], [47.25, -25.0], [47.03, -25.53], [46.68, -25.68], [46.53, -26.03], [46.0, -26.25], [45.75, -26.15], [45.68, -26.18], [45.65, -26.25], [45.75, -26.5], [45.53, -27.03], [45.0, -27.25], [44.47, -27.03], [44.32, -26.68], [43.97, -26.53], [43.75, -26.0], [43.85, -25.75], [43.75, -25.5], [43.97, -24.97]]]]}, "2017-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.32, -24.32], [45.35, -24.25], [45.25, -24.0], [45.35, -23.75], [45.25, -23.5], [45.35, -23.25], [45.25, -23.0], [45.35, -22.75], [45.25, -22.5], [45.35, -22.25], [45.25, -22.0], [45.47, -21.47], [45.82, -21.32], [45.97, -20.97], [46.32, -20.82], [46.35, -20.75], [46.25, -20.5], [46.35, -20.25], [46.25, -20.0], [46.35, -19.75], [46.25, -19.5], [46.47, -18.97], [47.0, -18.75], [47.53, -18.97], [47.75, -19.5], [47.65, -19.75], [47.75, -20.0], [47.65, -20.25], [47.75, -20.5], [47.65, -20.75], [47.75, -21.0], [47.65, -21.25], [47.68, -21.32], [48.03, -21.47], [48.25, -22.0], [48.03, -22.53], [47.68, -22.68], [47.53, -23.03], [47.0, -23.25], [46.7, -23.12], [46.65, -23.25], [46.68, -23.32], [47.03, -23.47], [47.25, -24.0], [47.15, -24.25], [47.25, -24.5], [47.15, -24.75], [47.25, -25.0], [47.03, -25.53], [46.68, -25.68], [46.53, -26.03], [46.0, -26.25], [45.75, -26.15], [45.5, -26.25], [45.0, -26.04], [44.5, -26.25], [43.97, -26.03], [43.75, -25.5], [43.97, -24.97], [44.5, -24.75], [44.8, -24.87], [44.97, -24.47], [45.32, -24.32]]]]}, "2017-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.35, -21.75], [46.25, -21.5], [46.35, -21.25], [46.25, -21.0], [46.35, -20.75], [46.25, -20.5], [46.35, -20.25], [46.25, -20.0], [46.35, -19.75], [46.25, -19.5], [46.47, -18.97], [47.0, -18.75], [47.53, -18.97], [47.75, -19.5], [47.65, -19.75], [47.75, -20.0], [47.65, -20.25], [47.75, -20.5], [47.65, -20.75], [47.75, -21.0], [47.65, -21.25], [47.68, -21.32], [48.03, -21.47], [48.25, -22.0], [48.03, -22.53], [47.68, -22.68], [47.53, -23.03], [47.0, -23.25], [46.47, -23.03], [46.25, -22.5], [46.35, -22.25], [46.25, -22.0], [46.35, -21.75]]]]}, "2017-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.0, -18.75], [47.53, -18.97], [47.75, -19.5], [47.53, -20.03], [47.0, -20.25], [46.47, -20.03], [46.25, -19.5], [46.47, -18.97], [47.0, -18.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.46135335285112}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.147013216204795}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.209271041032878, 21.953850205775723, 21.806469115595007, 22.900950267504015, 22.949259873643655, 21.79484225102823, 21.115733663501885, 18.338155305630266, 15.469748884920023]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.830290954739155, 23.33321804669896, 23.91641342654725, 26.0994555916555, 25.736278752992575, 25.748547142844473, 24.85563585494623, 21.79658190584172, 15.469748884920023]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.2651846083089593, 2.305054636532153, 2.18732415860343, 2.246480478214719, 2.1948714998633228, 2.0666402380928464, 2.1596118292282873, 1.8130384787148657, 1.5065899786810064]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8011502592275974, 2.5143617251671913, 2.693120274385649, 3.1623473721051027, 3.3200913736363873, 3.153192598926637, 3.46135335285112, 2.060427314378501, 1.5065899786810064]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5115240606989757, 1.535486607417088, 1.4992397161435476, 1.6461653561463907, 1.6710364796380999, 1.5938005039291543, 1.5892410897924656, 1.3813275720047302, 1.2103223457467382]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6608997823423228, 1.6808739603915752, 1.7427535562138972, 2.0408887407971688, 2.2208518853564563, 2.463068392667566, 2.3896049584761796, 1.5384769306347699, 1.2103223457467382]}}