{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:20:00.913538", "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-Dec-11_to_2020-Dec-13_299.5_-25.5"}, "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": 2020120002078}, "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 11 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 13 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 56480.13950991907}, "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": ["Argentina", "Paraguay"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "America"]}, "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": -25.5}, "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": 299.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "299.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 299.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 301.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -22.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-61.75, -23.0], [-61.53, -22.47], [-61.0, -22.25], [-60.75, -22.354], [-60.677, -22.323], [-60.53, -21.97], [-60.0, -21.75], [-59.75, -21.854], [-59.5, -21.75], [-58.97, -21.97], [-58.823, -22.323], [-58.47, -22.47], [-58.25, -23.0], [-58.457, -23.5], [-58.323, -23.823], [-57.97, -23.97], [-57.75, -24.5], [-57.97, -25.03], [-58.5, -25.25], [-58.75, -25.146], [-58.823, -25.177], [-58.97, -25.53], [-59.323, -25.677], [-59.47, -26.03], [-60.0, -26.25], [-60.25, -26.146], [-60.5, -26.25], [-61.03, -26.03], [-61.25, -25.5], [-61.146, -25.25], [-61.25, -25.0], [-61.03, -24.47], [-60.677, -24.323], [-60.625, -24.198], [-61.03, -24.03], [-61.177, -23.677], [-61.53, -23.53], [-61.75, -23.0]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-12-11T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-61.17677669529661, -23.67677669529664], [-61.53033008588989, -23.53033008588991], [-61.75, -23.0], 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[-60.67677669529661, -24.32322330470336], [-60.625, -24.198223304703365], [-61.03033008588989, -24.03033008588991], [-61.17677669529661, -23.67677669529664]]]}, "2020-12-12T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-61.17677669529661, -23.67677669529664], [-61.53033008588989, -23.53033008588991], [-61.75, -23.0], [-61.53033008588989, -22.46966991411009], [-61.0, -22.25], [-60.75, -22.353553390593277], [-60.67677669529661, -22.32322330470336], [-60.53033008588989, -21.96966991411009], [-60.0, -21.75], [-59.75, -21.853553390593277], [-59.5, -21.75], [-58.96966991411011, -21.96966991411009], [-58.82322330470339, -22.32322330470336], [-58.46966991411011, -22.46966991411009], [-58.25, -23.0], [-58.45710678118655, -23.5], [-58.32322330470339, -23.82322330470336], [-57.96966991411011, -23.96966991411009], [-57.75, -24.5], [-57.96966991411011, -25.03033008588991], [-58.5, -25.25], [-58.75, -25.146446609406723], [-58.82322330470339, -25.17677669529664], [-58.96966991411011, 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"description": "Mean t2m anomaly over entire duration", "value": 4.64642155888995}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.966049477208117, 33.11689722631917, 31.948487174617185]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.42344467495042, 34.10998011524492, 32.73112494419439]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.3651338818729215, 5.389465408988383, 4.184665385808543]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.813200252101126, 6.846149340442594, 4.495604196467696]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.574382672083296, 1.9225956058201255, 1.469573079329183]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9627381055731812, 2.333013358399052, 1.6414924902959054]}}