{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:16.037001", "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-Apr-29_to_2020-May-01_294.5_-2.5"}, "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": 2020040002864}, "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": "April 29 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 01 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": 61788.60673203922}, "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": ["Brazil"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -2.5}, "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": 294.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "294.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 293.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 295.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-67.03, -1.47], [-66.677, -1.323], [-66.646, -1.25], [-66.75, -1.0], [-66.53, -0.47], [-66.0, -0.25], [-65.75, -0.354], [-65.677, -0.323], [-65.646, -0.25], [-65.75, 0.0], [-65.53, 0.53], [-65.0, 0.75], [-64.47, 0.53], [-64.25, 0.0], [-64.354, -0.25], [-64.323, -0.323], [-63.97, -0.47], [-63.75, -1.0], [-63.854, -1.25], [-63.75, -1.5], [-63.854, -1.75], [-63.75, -2.0], [-63.97, -2.53], [-64.5, -2.75], [-64.75, -2.646], [-64.823, -2.677], [-64.854, -2.75], [-64.75, -3.0], [-64.97, -3.53], [-65.5, -3.75], [-65.75, -3.646], [-66.0, -3.75], [-66.53, -3.53], [-66.677, -3.177], [-67.03, -3.03], [-67.25, -2.5], [-67.146, -2.25], [-67.25, -2.0], [-67.03, -1.47]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-04-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-67.14644660940672, -2.25], [-67.25, -2.0], [-67.03033008588989, -1.4696699141100895], [-66.67677669529661, 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-3.0303300858899105], [-67.25, -2.5], [-67.14644660940672, -2.25]]]}, "2020-04-30T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-67.14644660940672, -2.25], [-67.25, -2.0], [-67.03033008588989, -1.4696699141100895], [-66.67677669529661, -1.3232233047033632], [-66.64644660940672, -1.25], [-66.75, -1.0], [-66.53033008588989, -0.4696699141100894], [-66.0, -0.25], [-65.75, -0.35355339059327845], [-65.67677669529661, -0.32322330470336313], [-65.64644660940672, -0.25], [-65.75, 0.0], [-65.53033008588989, 0.5303300858899106], [-65.0, 0.75], [-64.46966991411011, 0.5303300858899107], [-64.25, 0.0], [-64.35355339059328, -0.24999999999999997], [-64.32322330470339, -0.3232233047033631], [-63.96966991411011, -0.4696699141100893], [-63.75, -1.0], [-63.85355339059328, -1.25], [-63.75, -1.5], [-63.85355339059328, -1.75], [-63.75, -2.0], [-63.96966991411011, -2.5303300858899105], [-64.5, -2.75], [-64.75, -2.6464466094067216], [-64.82322330470339, -2.676776695296637], [-64.85355339059328, 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27.07663070026041]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.836464907283528, 27.368021671139445, 27.59025688799869]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2938530767287204, 1.0208530860608023, 1.395798014575314]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8899623119298212, 1.1962435468315675, 1.535913443444258]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7241876282792892, 1.3421260977093892, 1.9027833391802964]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.3347393114689, 1.5505527063182212, 2.162260177281066]}}