{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:14:48.242341", "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": "2020-Jun-26_to_2020-Jun-30_45.5_-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": 2020060003081}, "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": "June 26 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 30 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 51263.071540558136}, "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"]}, "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": []}, "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": 45.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "45.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 47.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -24.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[43.97, -22.47], [44.5, -22.25], [44.75, -22.354], [44.823, -22.323], [44.854, -22.25], [44.75, -22.0], [44.97, -21.47], [45.5, -21.25], [46.03, -21.47], [46.177, -21.823], [46.25, -21.854], [46.323, -21.823], [46.354, -21.75], [46.25, -21.5], [46.354, -21.25], [46.25, -21.0], [46.47, -20.47], [47.0, -20.25], [47.53, -20.47], [47.75, -21.0], [47.646, -21.25], [47.75, -21.5], [47.646, -21.75], [47.75, -22.0], [47.543, -22.5], [47.75, -23.0], [47.53, -23.53], [47.0, -23.75], [46.75, -23.646], [46.625, -23.698], [46.75, -24.0], [46.53, -24.53], [46.177, -24.677], [46.03, -25.03], [45.5, -25.25], [44.97, -25.03], [44.75, -24.5], [44.854, -24.25], [44.823, -24.177], [44.47, -24.03], [44.323, -23.677], [43.97, -23.53], [43.75, -23.0], [43.97, -22.47]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Madagascar"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-26T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[44.32322330470336, -23.67677669529664], [43.96966991411009, -23.53033008588991], [43.75, -23.0], [43.96966991411009, -22.46966991411009], [44.5, -22.25], [44.75, -22.353553390593273], [44.82322330470336, -22.32322330470336], [44.85355339059328, -22.25], [44.75, -22.0], [44.96966991411009, -21.46966991411009], [45.5, -21.25], [46.03033008588991, -21.46966991411009], [46.25, -22.0], [46.14644660940672, -22.25], [46.25, -22.5], [46.04289321881345, -23.0], [46.17677669529664, -23.32322330470336], [46.53033008588991, -23.46966991411009], [46.75, -24.0], [46.53033008588991, -24.53033008588991], [46.17677669529664, -24.67677669529664], [46.03033008588991, -25.03033008588991], [45.5, -25.25], [44.96966991411009, -25.03033008588991], [44.75, -24.5], [44.85355339059328, -24.25], [44.82322330470336, -24.17677669529664], [44.46966991411009, -24.03033008588991], [44.32322330470336, -23.67677669529664]]]}, "2020-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.96966991411009, -23.53033008588991], [43.75, -23.0], [43.96966991411009, -22.46966991411009], [44.5, -22.25], [44.75, -22.353553390593273], [44.82322330470336, -22.32322330470336], [44.85355339059328, -22.25], [44.75, -22.0], [44.96966991411009, -21.46966991411009], [45.5, -21.25], [46.03033008588991, -21.46966991411009], [46.25, -22.0], [46.14644660940672, -22.25], [46.17677669529664, -22.32322330470336], [46.53033008588991, -22.46966991411009], [46.75, -23.0], [46.54289321881345, -23.5], [46.75, -24.0], [46.53033008588991, -24.53033008588991], [46.17677669529664, -24.67677669529664], [46.03033008588991, -25.03033008588991], [45.5, -25.25], [44.96966991411009, -25.03033008588991], [44.75, -24.5], [44.85355339059328, -24.25], [44.82322330470336, -24.17677669529664], [44.46966991411009, -24.03033008588991], [44.32322330470336, -23.67677669529664], [43.96966991411009, -23.53033008588991]]], [[[47.53033008588991, -21.53033008588991], [47.0, -21.75], [46.46966991411009, -21.53033008588991], [46.25, -21.0], [46.46966991411009, -20.46966991411009], [47.0, -20.25], [47.53033008588991, -20.46966991411009], [47.75, -21.0], [47.53033008588991, -21.53033008588991]]]]}, "2020-06-28T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[44.32322330470336, -23.67677669529664], [43.96966991411009, -23.53033008588991], [43.75, -23.0], [43.96966991411009, -22.46966991411009], [44.5, -22.25], [44.75, -22.353553390593273], [44.82322330470336, -22.32322330470336], [44.85355339059328, -22.25], [44.75, -22.0], [44.96966991411009, -21.46966991411009], [45.5, -21.25], [46.03033008588991, -21.46966991411009], [46.17677669529664, -21.82322330470336], [46.25, -21.853553390593273], [46.32322330470336, -21.82322330470336], [46.35355339059328, -21.75], [46.25, -21.5], [46.35355339059328, -21.25], [46.25, -21.0], [46.46966991411009, -20.46966991411009], [47.0, -20.25], [47.53033008588991, -20.46966991411009], [47.75, -21.0], [47.64644660940672, -21.25], [47.75, -21.5], [47.64644660940672, -21.75], [47.75, -22.0], [47.54289321881345, -22.5], [47.75, -23.0], [47.53033008588991, -23.53033008588991], [47.0, -23.75], [46.75, -23.646446609406727], [46.625, -23.698223304703365], [46.75, -24.0], [46.53033008588991, -24.53033008588991], [46.17677669529664, -24.67677669529664], [46.03033008588991, -25.03033008588991], [45.5, -25.25], [44.96966991411009, -25.03033008588991], [44.75, -24.5], [44.85355339059328, -24.25], [44.82322330470336, -24.17677669529664], [44.46966991411009, -24.03033008588991], [44.32322330470336, -23.67677669529664]]]}, "2020-06-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[44.85355339059328, -22.75], [44.75, -22.5], [44.85355339059328, -22.25], [44.75, -22.0], [44.96966991411009, -21.46966991411009], [45.5, -21.25], [46.03033008588991, -21.46966991411009], [46.17677669529664, -21.82322330470336], [46.25, -21.853553390593273], [46.32322330470336, -21.82322330470336], [46.35355339059328, -21.75], [46.25, -21.5], [46.35355339059328, -21.25], [46.25, -21.0], [46.46966991411009, -20.46966991411009], [47.0, -20.25], [47.53033008588991, -20.46966991411009], [47.75, -21.0], [47.64644660940672, -21.25], [47.75, -21.5], [47.64644660940672, -21.75], [47.75, -22.0], [47.54289321881345, -22.5], [47.75, -23.0], [47.53033008588991, -23.53033008588991], [47.0, -23.75], [46.75, -23.646446609406727], [46.625, -23.698223304703365], [46.75, -24.0], [46.53033008588991, -24.53033008588991], [46.0, -24.75], [45.46966991411009, -24.53033008588991], [45.25, -24.0], [45.375, -23.698223304703365], [44.96966991411009, -23.53033008588991], [44.75, -23.0], [44.85355339059328, -22.75]]]}, "2020-06-30T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[45.82322330470336, -23.17677669529664], [45.46966991411009, -23.03033008588991], [45.25, -22.5], [45.46966991411009, -21.96966991411009], [46.0, -21.75], [46.25, -21.853553390593273], [46.32322330470336, -21.82322330470336], [46.35355339059328, -21.75], [46.25, -21.5], [46.35355339059328, -21.25], [46.25, -21.0], [46.46966991411009, -20.46966991411009], [47.0, -20.25], [47.53033008588991, -20.46966991411009], [47.75, -21.0], [47.64644660940672, -21.25], [47.75, -21.5], [47.64644660940672, -21.75], [47.75, -22.0], [47.54289321881345, -22.5], [47.75, -23.0], [47.53033008588991, -23.53033008588991], [47.0, -23.75], [46.75, -23.646446609406727], [46.5, -23.75], [45.96966991411009, -23.53033008588991], [45.82322330470336, -23.17677669529664]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.363888148807689}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.5009942067877033}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.683543130060286, 20.008048183384574, 19.298892046009485, 18.119633862075318, 16.911574474384224]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.219041940569298, 22.75882481407126, 22.59853172160797, 21.324500269174735, 18.72405558333736]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.5010508204916215, 2.556632238063495, 2.667865501976419, 2.440560379905776, 2.0800451654364855]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.9853476800488465, 3.363888148807689, 3.2837455691122273, 2.788150421073283, 2.317793617086238]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3978677952682006, 1.4489848009417534, 1.5919562969735859, 1.5603471438129066, 1.3943940931675236]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6070869694623475, 1.7047098081032555, 1.875332250219679, 1.829389861210991, 1.54705968765533]}}