{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:44.777677", "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-Aug-29_to_2015-Sep-06_61.0_-20.5"}, "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": 2015080002870}, "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": "August 29 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 06 2015"}, "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": 144837.12743908275}, "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": ["Mauritius"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Indian-Ocean"]}, "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"]}, "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": -20.5}, "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": 61.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "61.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 55.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 63.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -22.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[58.47, -21.53], [58.25, -21.0], [58.47, -20.47], [59.0, -20.25], [59.25, -20.35], [59.32, -20.32], [59.35, -20.25], [59.25, -20.0], [59.47, -19.47], [59.82, -19.32], [59.97, -18.97], [60.5, -18.75], [60.75, -18.85], [61.0, -18.75], [61.53, -18.97], [61.68, -19.32], [61.75, -19.35], [62.0, -19.25], [62.25, -19.35], [62.5, -19.25], [63.03, -19.47], [63.25, -20.0], [63.15, -20.25], [63.25, -20.5], [63.15, -20.75], [63.18, -20.82], [63.53, -20.97], [63.68, -21.32], [64.03, -21.47], [64.25, -22.0], [64.03, -22.53], [63.5, -22.75], [63.25, -22.65], [63.0, -22.75], [62.47, -22.53], [62.32, -22.18], [62.25, -22.15], [62.0, -22.25], [61.47, -22.03], [61.32, -21.68], [61.25, -21.65], [61.0, -21.75], [60.75, -21.65], [60.5, -21.75], [60.25, -21.65], [60.0, -21.75], [59.75, -21.65], [59.5, -21.75], [59.25, -21.65], [59.0, -21.75], [58.47, -21.53]]]]}, "2015-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.97, -20.53], [56.75, -20.0], [56.97, -19.47], [57.5, -19.25], [58.03, -19.47], [58.2, -19.87], [58.5, -19.75], [58.75, -19.85], [59.0, -19.75], [59.25, -19.85], [59.32, -19.82], [59.47, -19.47], [59.82, -19.32], [59.97, -18.97], [60.32, -18.82], [60.47, -18.47], [61.0, -18.25], [61.25, -18.35], [61.5, -18.25], [61.75, -18.35], [62.0, -18.25], [62.25, -18.35], [62.5, -18.25], [63.03, -18.47], [63.18, -18.82], [63.25, -18.85], [63.5, -18.75], [64.03, -18.97], [64.25, -19.5], [64.03, -20.03], [63.68, -20.18], [63.53, -20.53], [63.18, -20.68], [63.15, -20.75], [63.18, -20.82], [63.25, -20.85], [63.5, -20.75], [64.03, -20.97], [64.25, -21.5], [64.15, -21.75], [64.25, -22.0], [64.03, -22.53], [63.5, -22.75], [63.25, -22.65], [63.0, -22.75], [62.47, -22.53], [62.32, -22.18], [62.25, -22.15], [62.0, -22.25], [61.75, -22.15], [61.5, -22.25], [61.25, -22.15], [61.0, -22.25], [60.75, -22.15], [60.5, -22.25], [59.97, -22.03], [59.82, -21.68], [59.75, -21.65], [59.5, -21.75], [59.25, -21.65], [59.0, -21.75], [58.47, -21.53], [58.32, -21.18], [57.97, -21.03], [57.8, -20.62], [57.5, -20.75], [56.97, -20.53]]]]}, "2015-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.47, -20.53], [55.25, -20.0], [55.47, -19.47], [56.0, -19.25], [56.25, -19.35], [56.5, -19.25], [56.75, -19.35], [57.0, -19.25], [57.25, -19.35], [57.5, -19.25], [58.03, -19.47], [58.18, -19.82], [58.25, -19.85], [58.5, -19.75], [58.75, -19.85], [59.0, -19.75], [59.25, -19.85], [59.32, -19.82], [59.47, -19.47], [59.82, -19.32], [59.97, -18.97], [60.32, -18.82], [60.47, -18.47], [61.0, -18.25], [61.25, -18.35], [61.5, -18.25], [61.75, -18.35], [62.0, -18.25], [62.25, -18.35], [62.5, -18.25], [63.03, -18.47], [63.18, -18.82], [63.25, -18.85], [63.5, -18.75], [64.03, -18.97], [64.25, -19.5], [64.03, -20.03], [63.68, -20.18], [63.53, -20.53], [63.18, -20.68], [63.15, -20.75], [63.18, -20.82], [63.25, -20.85], [63.5, -20.75], [64.03, -20.97], [64.25, -21.5], [64.15, -21.75], [64.25, -22.0], [64.03, -22.53], [63.5, -22.75], [63.25, -22.65], [63.0, -22.75], [62.47, -22.53], [62.32, -22.18], [62.25, -22.15], [62.0, -22.25], [61.75, -22.15], [61.5, -22.25], [61.25, -22.15], [61.0, -22.25], [60.75, -22.15], [60.5, -22.25], [59.97, -22.03], [59.82, -21.68], [59.75, -21.65], [59.5, -21.75], [59.25, -21.65], [59.0, -21.75], [58.47, -21.53], [58.32, -21.18], [58.25, -21.15], [58.0, -21.25], [57.75, -21.15], [57.5, -21.25], [56.97, -21.03], [56.82, -20.68], [56.75, -20.65], [56.5, -20.75], [56.25, -20.65], [56.0, -20.75], [55.47, -20.53]]]]}, "2015-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.47, -20.53], [55.25, -20.0], [55.47, -19.47], [56.0, -19.25], [56.25, -19.35], [56.5, -19.25], [56.75, -19.35], [57.0, -19.25], [57.25, -19.35], [57.5, -19.25], [58.03, -19.47], [58.18, -19.82], [58.25, -19.85], [58.5, -19.75], [58.75, -19.85], [59.0, -19.75], [59.25, -19.85], [59.5, -19.75], [59.75, -19.85], [59.82, -19.82], [59.85, -19.75], [59.75, -19.5], [59.97, -18.97], [60.32, -18.82], [60.47, -18.47], [61.0, -18.25], [61.25, -18.35], [61.5, -18.25], [61.75, -18.35], [62.0, -18.25], [62.25, -18.35], [62.5, -18.25], [63.03, -18.47], [63.18, -18.82], [63.25, -18.85], [63.5, -18.75], [64.03, -18.97], [64.25, -19.5], [64.03, -20.03], [63.68, -20.18], [63.53, -20.53], [63.18, -20.68], [63.15, -20.75], [63.18, -20.82], [63.25, -20.85], [63.5, -20.75], [64.03, -20.97], [64.25, -21.5], [64.03, -22.03], [63.5, -22.25], [63.25, -22.15], [63.0, -22.25], [62.75, -22.15], [62.5, -22.25], [62.25, -22.15], [62.0, -22.25], [61.75, -22.15], [61.5, -22.25], [61.25, -22.15], [61.0, -22.25], [60.75, -22.15], [60.5, -22.25], [59.97, -22.03], [59.82, -21.68], [59.75, -21.65], [59.5, -21.75], [59.25, -21.65], [59.0, -21.75], [58.47, -21.53], [58.32, -21.18], [58.25, -21.15], [58.0, -21.25], [57.75, -21.15], [57.5, -21.25], [56.97, -21.03], [56.82, -20.68], [56.75, -20.65], [56.5, -20.75], [56.25, -20.65], [56.0, -20.75], [55.47, -20.53]]]]}, "2015-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.47, -20.53], [55.25, -20.0], [55.47, -19.47], [56.0, -19.25], [56.25, -19.35], [56.5, -19.25], [56.75, -19.35], [57.0, -19.25], [57.25, -19.35], [57.5, -19.25], [58.03, -19.47], [58.18, -19.82], [58.25, -19.85], [58.5, -19.75], [58.75, -19.85], [59.0, -19.75], [59.25, -19.85], [59.5, -19.75], [59.75, -19.85], [59.82, -19.82], [59.85, -19.75], [59.75, -19.5], [59.97, -18.97], [60.32, -18.82], [60.47, -18.47], [61.0, -18.25], [61.25, -18.35], [61.5, -18.25], [61.75, -18.35], [62.0, -18.25], [62.53, -18.47], [62.75, -19.0], [62.65, -19.25], [62.75, -19.5], [62.53, -20.03], [62.18, -20.18], [62.03, -20.53], [61.68, -20.68], [61.53, -21.03], [61.0, -21.25], [60.75, -21.15], [60.5, -21.25], [60.25, -21.15], [60.0, -21.25], [59.75, -21.15], [59.5, -21.25], [59.25, -21.15], [59.0, -21.25], [58.75, -21.15], [58.5, -21.25], [58.25, -21.15], [58.0, -21.25], [57.75, -21.15], [57.5, -21.25], [56.97, -21.03], [56.82, -20.68], [56.75, -20.65], [56.5, -20.75], [56.25, -20.65], [56.0, -20.75], [55.47, -20.53]]]]}, "2015-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.97, -21.53], [60.75, -21.0], [60.97, -20.47], [61.5, -20.25], [62.03, -20.47], [62.25, -21.0], [62.03, -21.53], [61.5, -21.75], [60.97, -21.53]]], [[[55.47, -19.47], [56.0, -19.25], [56.25, -19.35], [56.5, -19.25], [56.75, -19.35], [57.0, -19.25], [57.25, -19.35], [57.5, -19.25], [58.03, -19.47], [58.25, -20.0], [58.15, -20.25], [58.25, -20.5], [58.03, -21.03], [57.5, -21.25], [56.97, -21.03], [56.82, -20.68], [56.75, -20.65], [56.5, -20.75], [56.25, -20.65], [56.0, -20.75], [55.47, -20.53], [55.25, -20.0], [55.47, -19.47]]], [[[60.97, -18.47], [61.5, -18.25], [61.75, -18.35], [62.0, -18.25], [62.53, -18.47], [62.75, -19.0], [62.53, -19.53], [62.0, -19.75], [61.75, -19.65], [61.5, -19.75], [60.97, -19.53], [60.75, -19.0], [60.97, -18.47]]]]}, "2015-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.25, -20.5], [60.47, -19.97], [61.0, -19.75], [61.25, -19.85], [61.5, -19.75], [62.03, -19.97], [62.25, -20.5], [62.15, -20.75], [62.25, -21.0], [62.03, -21.53], [61.5, -21.75], [60.97, -21.53], [60.82, -21.18], [60.47, -21.03], [60.25, -20.5]]]]}, "2015-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.25, -20.5], [60.47, -19.97], [61.0, -19.75], [61.25, -19.85], [61.5, -19.75], [62.03, -19.97], [62.25, -20.5], [62.15, -20.75], [62.25, -21.0], [62.03, -21.53], [61.5, -21.75], [60.97, -21.53], [60.82, -21.18], [60.47, -21.03], [60.25, -20.5]]]]}, "2015-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.47, -21.03], [60.25, -20.5], [60.47, -19.97], [61.0, -19.75], [61.25, -19.85], [61.5, -19.75], [62.03, -19.97], [62.25, -20.5], [62.03, -21.03], [61.5, -21.25], [61.25, -21.15], [61.0, -21.25], [60.47, -21.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.4300658922999787}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9910340375168941}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.46039166135114, 22.868649462133135, 22.785446908964275, 22.69047005360062, 22.815119877314373, 22.859125345791938, 22.720002442869657, 22.741545114598807, 22.682590551126395]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.84862428929756, 23.546291697914228, 23.336035766550367, 23.289403212808622, 23.120844140119118, 23.20775484247656, 22.836102643180652, 22.820397871042303, 22.69911756264372]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8338901652029785, 1.1716748538982744, 1.063119382817631, 0.9191514015937695, 0.8525497448271532, 0.8675699789159665, 1.0063885356448168, 1.0001210985303146, 0.8464452257826736]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9062388265335812, 1.4300658922999787, 1.2740458251110454, 1.2403378355653558, 1.0044732711479583, 1.0960861882795143, 1.0747877437195825, 1.0300090417782712, 0.8724974130917644]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.245339659620754, 1.782792293973433, 1.5761452114854262, 1.3528945107873285, 1.2682357128892998, 1.2823947657819286, 1.5508969628421918, 1.5784310370846726, 1.391326641563467]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3522816371298254, 2.3263831369199637, 1.8610684334675436, 1.6124068747236147, 1.4027511936825001, 1.3855331964954065, 1.6378948534711724, 1.6472212999594864, 1.4404308383012352]}}