{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:18:35.631816", "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-Sep-23_to_2020-Sep-26_287.5_-51.0"}, "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": 2020090002351}, "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": "September 23 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 26 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 182732.4877103383}, "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", "Chile"]}, "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": ["Atlantic 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": -51.0}, "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": 287.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "287.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 286.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -53.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -49.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-73.677, -50.323], [-73.646, -50.25], [-73.75, -50.0], [-73.53, -49.47], [-73.177, -49.323], [-73.03, -48.97], [-72.5, -48.75], [-72.25, -48.854], [-72.0, -48.75], [-71.47, -48.97], [-71.323, -49.323], [-70.97, -49.47], [-70.75, -50.0], [-70.854, -50.25], [-70.823, -50.323], [-70.75, -50.354], [-70.5, -50.25], [-69.97, -50.47], [-69.823, -50.823], [-69.75, -50.854], [-69.5, -50.75], [-69.25, -50.854], [-69.0, -50.75], [-68.47, -50.97], [-68.323, -51.323], [-67.97, -51.47], [-67.823, -51.823], [-67.75, -51.854], [-67.677, -51.823], [-67.646, -51.75], [-67.75, -51.5], [-67.53, -50.97], [-67.177, -50.823], [-67.03, -50.47], [-66.5, -50.25], [-65.97, -50.47], [-65.823, -50.823], [-65.75, -50.854], [-65.5, -50.75], [-65.25, -50.854], [-65.0, -50.75], [-64.75, -50.854], [-64.5, -50.75], [-64.25, -50.854], [-64.0, -50.75], [-63.75, -50.854], [-63.5, -50.75], [-62.97, -50.97], [-62.823, -51.323], [-62.75, -51.354], [-62.5, -51.25], [-62.25, -51.354], [-62.0, -51.25], [-61.47, -51.47], [-61.25, -52.0], [-61.47, -52.53], [-61.823, -52.677], [-61.854, -52.75], [-61.75, -53.0], [-61.97, -53.53], [-62.5, -53.75], [-62.75, -53.646], [-63.0, -53.75], [-63.25, -53.646], [-63.323, -53.677], [-63.47, -54.03], [-64.0, -54.25], [-64.25, -54.146], [-64.5, -54.25], [-64.75, -54.146], [-65.0, -54.25], [-65.5, -54.043], [-66.0, -54.25], [-66.25, -54.146], [-66.5, -54.25], [-66.75, -54.146], [-67.0, -54.25], [-67.25, -54.146], [-67.5, -54.25], [-68.03, -54.03], [-68.177, -53.677], [-68.25, -53.646], [-68.5, -53.75], [-69.03, -53.53], [-69.177, -53.177], [-69.5, -53.043], [-70.0, -53.25], [-70.53, -53.03], [-70.677, -52.677], [-70.75, -52.646], [-71.0, -52.75], [-71.25, -52.646], [-71.5, -52.75], [-71.75, -52.646], [-71.823, -52.677], [-71.854, -52.75], [-71.75, -53.0], [-71.97, -53.53], [-72.5, -53.75], [-72.75, -53.646], [-73.0, -53.75], [-73.53, -53.53], [-73.677, -53.177], [-74.03, -53.03], [-74.25, -52.5], [-74.043, -52.0], [-74.25, -51.5], [-74.146, -51.25], [-74.25, -51.0], [-74.03, -50.47], [-73.677, -50.323]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-09-23T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-74.14644660940672, -51.25], [-74.25, -51.0], [-74.03033008588989, -50.46966991411009], [-73.67677669529661, -50.32322330470336], [-73.64644660940672, -50.25], [-73.75, -50.0], [-73.53033008588989, -49.46966991411009], [-73.0, -49.25], [-72.75, -49.35355339059328], [-72.5, -49.25], [-72.25, -49.35355339059328], [-72.0, -49.25], [-71.75, -49.35355339059328], [-71.5, -49.25], [-70.96966991411011, -49.46966991411009], [-70.75, -50.0], [-70.85355339059328, -50.25], [-70.82322330470339, -50.32322330470336], [-70.75, -50.35355339059328], [-70.5, -50.25], [-69.96966991411011, -50.46966991411009], [-69.82322330470339, -50.82322330470336], [-69.75, -50.85355339059328], [-69.5, -50.75], [-69.25, -50.85355339059328], [-69.0, -50.75], [-68.46966991411011, -50.96966991411009], [-68.32322330470339, -51.32322330470336], [-67.96966991411011, -51.46966991411009], [-67.82322330470339, -51.82322330470336], [-67.75, -51.85355339059328], [-67.67677669529661, -51.82322330470336], [-67.64644660940672, -51.75], [-67.75, -51.5], [-67.53033008588989, -50.96966991411009], [-67.17677669529661, -50.82322330470336], [-67.03033008588989, -50.46966991411009], [-66.5, -50.25], [-65.96966991411011, -50.46966991411009], [-65.82322330470339, -50.82322330470336], [-65.75, -50.85355339059328], [-65.5, -50.75], [-65.25, -50.85355339059328], [-65.0, -50.75], [-64.75, -50.85355339059328], [-64.5, -50.75], [-64.25, -50.85355339059328], [-64.0, -50.75], [-63.75, -50.85355339059328], [-63.5, -50.75], [-62.96966991411011, -50.96966991411009], [-62.82322330470339, -51.32322330470336], [-62.75, -51.35355339059328], [-62.5, -51.25], [-62.25, -51.35355339059328], [-62.0, -51.25], [-61.46966991411011, -51.46966991411009], [-61.25, -52.0], [-61.46966991411011, -52.53033008588991], [-61.82322330470339, -52.67677669529664], [-61.85355339059328, -52.75], [-61.75, -53.0], [-61.96966991411011, -53.53033008588991], [-62.5, -53.75], [-62.75, -53.64644660940672], [-63.0, -53.75], [-63.25, -53.64644660940672], [-63.32322330470339, -53.67677669529664], [-63.46966991411011, -54.03033008588991], [-64.0, -54.25], [-64.25, -54.14644660940672], [-64.5, -54.25], [-64.75, -54.14644660940672], [-65.0, -54.25], [-65.5, -54.04289321881344], [-66.0, -54.25], [-66.25, -54.14644660940672], [-66.5, -54.25], [-66.75, -54.14644660940672], [-67.0, -54.25], [-67.25, -54.14644660940672], [-67.5, -54.25], [-68.03033008588989, -54.03033008588991], [-68.17677669529661, -53.67677669529664], [-68.25, -53.64644660940672], [-68.5, -53.75], [-69.03033008588989, -53.53033008588991], [-69.17677669529661, -53.17677669529664], [-69.5, -53.04289321881344], [-70.0, -53.25], [-70.53033008588989, -53.03033008588991], [-70.67677669529661, -52.67677669529664], [-70.75, -52.64644660940672], [-71.0, -52.75], [-71.25, -52.64644660940672], [-71.5, -52.75], [-71.75, -52.64644660940672], [-71.82322330470339, -52.67677669529664], [-71.85355339059328, -52.75], [-71.75, -53.0], [-71.96966991411011, -53.53033008588991], [-72.5, -53.75], [-72.75, -53.64644660940672], [-73.0, -53.75], [-73.53033008588989, -53.53033008588991], [-73.67677669529661, -53.17677669529664], [-74.03033008588989, -53.03033008588991], [-74.25, -52.5], [-74.04289321881345, -52.0], [-74.25, -51.5], [-74.14644660940672, -51.25]]]}, "2020-09-24T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-74.14644660940672, -51.25], [-74.25, -51.0], [-74.03033008588989, -50.46966991411009], [-73.67677669529661, -50.32322330470336], [-73.64644660940672, -50.25], [-73.75, -50.0], [-73.53033008588989, -49.46966991411009], [-73.17677669529661, -49.32322330470336], [-73.03033008588989, -48.96966991411009], [-72.5, -48.75], [-72.25, -48.85355339059328], [-72.0, -48.75], [-71.46966991411011, -48.96966991411009], [-71.32322330470339, -49.32322330470336], [-70.96966991411011, -49.46966991411009], [-70.75, -50.0], [-70.85355339059328, -50.25], [-70.82322330470339, -50.32322330470336], [-70.75, -50.35355339059328], [-70.5, -50.25], [-69.96966991411011, -50.46966991411009], [-69.82322330470339, -50.82322330470336], [-69.75, -50.85355339059328], [-69.5, -50.75], [-69.25, -50.85355339059328], [-69.0, -50.75], [-68.46966991411011, -50.96966991411009], [-68.32322330470339, -51.32322330470336], [-67.96966991411011, -51.46966991411009], [-67.82322330470339, -51.82322330470336], [-67.75, -51.85355339059328], [-67.67677669529661, -51.82322330470336], [-67.64644660940672, -51.75], [-67.75, -51.5], [-67.53033008588989, -50.96966991411009], [-67.17677669529661, -50.82322330470336], [-67.03033008588989, -50.46966991411009], [-66.5, -50.25], [-65.96966991411011, -50.46966991411009], [-65.82322330470339, -50.82322330470336], [-65.75, -50.85355339059328], [-65.5, -50.75], [-65.25, -50.85355339059328], [-65.0, -50.75], [-64.75, -50.85355339059328], [-64.5, -50.75], [-64.25, -50.85355339059328], [-64.0, -50.75], [-63.75, -50.85355339059328], [-63.5, -50.75], [-62.96966991411011, -50.96966991411009], [-62.82322330470339, -51.32322330470336], [-62.75, -51.35355339059328], [-62.5, -51.25], [-62.25, -51.35355339059328], [-62.0, -51.25], [-61.46966991411011, -51.46966991411009], [-61.25, -52.0], [-61.46966991411011, -52.53033008588991], [-61.82322330470339, -52.67677669529664], [-61.85355339059328, -52.75], [-61.75, -53.0], [-61.96966991411011, -53.53033008588991], [-62.5, -53.75], [-62.75, -53.64644660940672], [-63.0, -53.75], [-63.25, -53.64644660940672], [-63.32322330470339, -53.67677669529664], [-63.46966991411011, -54.03033008588991], [-64.0, -54.25], [-64.25, -54.14644660940672], [-64.5, -54.25], [-64.75, -54.14644660940672], [-65.0, -54.25], [-65.5, -54.04289321881344], [-66.0, -54.25], [-66.25, -54.14644660940672], [-66.5, -54.25], [-66.75, -54.14644660940672], [-67.0, -54.25], [-67.25, -54.14644660940672], [-67.5, -54.25], [-68.03033008588989, -54.03033008588991], [-68.17677669529661, -53.67677669529664], [-68.25, -53.64644660940672], [-68.5, -53.75], [-69.03033008588989, -53.53033008588991], [-69.17677669529661, -53.17677669529664], [-69.5, -53.04289321881344], [-70.0, -53.25], [-70.53033008588989, -53.03033008588991], [-70.67677669529661, -52.67677669529664], [-70.75, -52.64644660940672], [-71.0, -52.75], [-71.25, -52.64644660940672], [-71.5, -52.75], [-71.75, -52.64644660940672], [-71.82322330470339, -52.67677669529664], [-71.85355339059328, -52.75], [-71.75, -53.0], [-71.96966991411011, -53.53033008588991], [-72.5, -53.75], [-72.75, -53.64644660940672], [-73.0, -53.75], [-73.53033008588989, -53.53033008588991], [-73.67677669529661, -53.17677669529664], [-74.03033008588989, -53.03033008588991], [-74.25, -52.5], [-74.04289321881345, -52.0], [-74.25, -51.5], [-74.14644660940672, -51.25]]]}, "2020-09-25T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-74.14644660940672, -51.25], [-74.25, -51.0], [-74.03033008588989, -50.46966991411009], [-73.67677669529661, -50.32322330470336], [-73.64644660940672, -50.25], [-73.75, -50.0], [-73.53033008588989, -49.46966991411009], [-73.17677669529661, -49.32322330470336], [-73.03033008588989, -48.96966991411009], [-72.5, -48.75], [-72.25, -48.85355339059328], [-72.0, -48.75], [-71.46966991411011, -48.96966991411009], [-71.32322330470339, -49.32322330470336], [-70.96966991411011, -49.46966991411009], [-70.75, -50.0], [-70.85355339059328, -50.25], [-70.82322330470339, -50.32322330470336], [-70.75, -50.35355339059328], [-70.5, -50.25], [-69.96966991411011, -50.46966991411009], [-69.82322330470339, -50.82322330470336], [-69.75, -50.85355339059328], [-69.5, -50.75], [-69.25, -50.85355339059328], [-69.0, -50.75], [-68.46966991411011, -50.96966991411009], [-68.32322330470339, -51.32322330470336], [-67.96966991411011, -51.46966991411009], [-67.82322330470339, -51.82322330470336], [-67.75, -51.85355339059328], [-67.67677669529661, -51.82322330470336], [-67.64644660940672, -51.75], [-67.75, -51.5], [-67.53033008588989, -50.96966991411009], [-67.17677669529661, -50.82322330470336], [-67.03033008588989, -50.46966991411009], [-66.5, -50.25], [-65.96966991411011, -50.46966991411009], [-65.82322330470339, -50.82322330470336], [-65.75, -50.85355339059328], [-65.5, -50.75], [-65.25, -50.85355339059328], [-65.0, -50.75], [-64.75, -50.85355339059328], [-64.5, -50.75], [-64.25, -50.85355339059328], [-64.0, -50.75], [-63.75, -50.85355339059328], [-63.5, -50.75], [-62.96966991411011, -50.96966991411009], [-62.82322330470339, -51.32322330470336], [-62.75, -51.35355339059328], [-62.5, -51.25], [-62.25, -51.35355339059328], [-62.0, -51.25], [-61.46966991411011, -51.46966991411009], [-61.25, -52.0], [-61.46966991411011, -52.53033008588991], [-61.82322330470339, -52.67677669529664], [-61.85355339059328, -52.75], [-61.75, -53.0], [-61.96966991411011, -53.53033008588991], [-62.5, -53.75], [-62.75, -53.64644660940672], [-63.0, -53.75], [-63.25, -53.64644660940672], [-63.32322330470339, -53.67677669529664], [-63.46966991411011, -54.03033008588991], [-64.0, -54.25], [-64.25, -54.14644660940672], [-64.5, -54.25], [-64.75, -54.14644660940672], [-65.0, -54.25], [-65.5, -54.04289321881344], [-66.0, -54.25], [-66.25, -54.14644660940672], [-66.5, -54.25], [-66.75, -54.14644660940672], [-67.0, -54.25], [-67.25, -54.14644660940672], [-67.5, -54.25], [-68.03033008588989, -54.03033008588991], [-68.17677669529661, -53.67677669529664], [-68.25, -53.64644660940672], [-68.5, -53.75], [-69.03033008588989, -53.53033008588991], [-69.17677669529661, -53.17677669529664], [-69.5, -53.04289321881344], [-70.0, -53.25], [-70.53033008588989, -53.03033008588991], [-70.67677669529661, -52.67677669529664], [-70.75, -52.64644660940672], [-71.0, -52.75], [-71.25, -52.64644660940672], [-71.5, -52.75], [-71.75, -52.64644660940672], [-71.82322330470339, -52.67677669529664], [-71.85355339059328, -52.75], [-71.75, -53.0], [-71.96966991411011, -53.53033008588991], [-72.5, -53.75], [-72.75, -53.64644660940672], [-73.0, -53.75], [-73.53033008588989, -53.53033008588991], [-73.67677669529661, -53.17677669529664], [-74.03033008588989, -53.03033008588991], [-74.25, -52.5], [-74.04289321881345, -52.0], [-74.25, -51.5], [-74.14644660940672, -51.25]]]}, "2020-09-26T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-73.64644660940672, -50.75], [-73.75, -50.5], [-73.64644660940672, -50.25], [-73.75, -50.0], [-73.53033008588989, -49.46966991411009], [-73.17677669529661, -49.32322330470336], [-73.03033008588989, -48.96966991411009], [-72.5, -48.75], [-72.25, -48.85355339059328], [-72.0, -48.75], [-71.46966991411011, -48.96966991411009], [-71.32322330470339, -49.32322330470336], [-70.96966991411011, -49.46966991411009], [-70.75, -50.0], [-70.85355339059328, -50.25], [-70.75, -50.5], [-70.96966991411011, -51.03033008588991], [-71.5, -51.25], [-71.75, -51.14644660940672], [-71.82322330470339, -51.17677669529664], [-71.85355339059328, -51.25], [-71.75, -51.5], [-71.96966991411011, -52.03033008588991], [-72.5, -52.25], [-73.03033008588989, -52.03033008588991], [-73.17677669529661, -51.67677669529664], [-73.53033008588989, -51.53033008588991], [-73.75, -51.0], [-73.64644660940672, -50.75]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.9860414304841925}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.589664879580695}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.285357502713396, 7.756560670039335, 7.492929066446038, 5.361083238981848]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.154352218934662, 11.868046969783506, 11.866208992035354, 7.784300149424382]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.413593818890144, 2.852822972834265, 2.495667539773366, 2.6000630575332044]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.186505030255546, 4.9860414304841925, 4.899710527285492, 3.100746515082051]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.48662059111511, 1.8236236627518798, 1.5818555777820615, 1.3806804783143654]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.913645935689865, 2.3721741643319225, 2.420297454091844, 1.5689765952183767]}}