{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:17:36.044793", "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-Jul-16_to_2020-Jul-20_320.0_64.0"}, "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": 2020070002493}, "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": "July 16 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 20 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": 65579.98299266794}, "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": ["Greenland"]}, "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": ["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": 64.0}, "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": 320.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "320.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 319.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 327.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 63.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 66.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-39.75, 62.854], [-40.0, 62.75], [-40.53, 62.97], [-40.677, 63.323], [-41.03, 63.47], [-41.25, 64.0], [-41.043, 64.5], [-41.25, 65.0], [-41.03, 65.53], [-40.5, 65.75], [-40.25, 65.646], [-40.0, 65.75], [-39.75, 65.646], [-39.5, 65.75], [-39.25, 65.646], [-39.177, 65.677], [-39.03, 66.03], [-38.5, 66.25], [-38.25, 66.146], [-38.0, 66.25], [-37.75, 66.146], [-37.5, 66.25], [-37.25, 66.146], [-37.0, 66.25], [-36.47, 66.03], [-36.323, 65.677], [-36.25, 65.646], [-36.125, 65.698], [-36.25, 66.0], [-36.03, 66.53], [-35.5, 66.75], [-35.25, 66.646], [-35.0, 66.75], [-34.75, 66.646], [-34.677, 66.677], [-34.53, 67.03], [-34.0, 67.25], [-33.75, 67.146], [-33.5, 67.25], [-32.97, 67.03], [-32.823, 66.677], [-32.47, 66.53], [-32.25, 66.0], [-32.47, 65.47], [-32.875, 65.302], [-32.75, 65.0], [-32.97, 64.47], [-33.5, 64.25], [-33.75, 64.354], [-34.0, 64.25], [-34.25, 64.354], [-34.323, 64.323], [-34.47, 63.97], [-35.0, 63.75], [-35.25, 63.854], [-35.5, 63.75], [-35.75, 63.854], [-35.823, 63.823], [-35.97, 63.47], [-36.5, 63.25], [-37.0, 63.457], [-37.5, 63.25], [-37.75, 63.354], [-37.774, 63.344], [-37.823, 63.323], [-37.97, 62.97], [-38.5, 62.75], [-38.75, 62.854], [-39.0, 62.75], [-39.25, 62.854], [-39.5, 62.75], [-39.75, 62.854]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Greenland/Iceland"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.5, 63.25], [-41.03033008588989, 63.46966991411009], [-41.25, 64.0], [-41.03033008588989, 64.53033008588991], [-40.5, 64.75], [-40.25, 64.64644660940672], [-40.0, 64.75], [-39.46966991411011, 64.53033008588991], [-39.25, 64.0], [-39.46966991411011, 63.46966991411009], [-40.0, 63.25], [-40.25, 63.35355339059328], [-40.5, 63.25]]], [[[-39.04289321881345, 64.5], [-39.25, 65.0], [-39.03033008588989, 65.53033008588991], [-38.5, 65.75], [-38.25, 65.64644660940672], [-38.0, 65.75], [-37.75, 65.64644660940672], [-37.5, 65.75], [-37.25, 65.64644660940672], [-37.0, 65.75], [-36.75, 65.64644660940672], [-36.5, 65.75], [-36.25, 65.64644660940672], [-36.0, 65.75], [-35.69822330470333, 65.625], [-35.64644660940672, 65.75], [-35.75, 66.0], [-35.53033008588989, 66.53033008588991], [-35.0, 66.75], [-34.75, 66.64644660940672], [-34.67677669529661, 66.67677669529664], [-34.53033008588989, 67.03033008588991], [-34.0, 67.25], [-33.75, 67.14644660940672], [-33.5, 67.25], [-32.96966991411011, 67.03033008588991], [-32.82322330470339, 66.67677669529664], [-32.46966991411011, 66.53033008588991], [-32.25, 66.0], [-32.46966991411011, 65.46966991411009], [-33.0, 65.25], [-33.25, 65.35355339059328], [-33.32322330470339, 65.32322330470336], [-33.46966991411011, 64.96966991411009], [-34.0, 64.75], [-34.25, 64.85355339059328], [-34.5, 64.75], [-34.75, 64.85355339059328], [-35.0, 64.75], [-35.30177669529667, 64.875], [-35.46966991411011, 64.46966991411009], [-36.0, 64.25], [-36.25, 64.35355339059328], [-36.5, 64.25], [-36.75, 64.35355339059328], [-37.0, 64.25], [-37.25, 64.35355339059328], [-37.375, 64.30177669529664], [-37.25, 64.0], [-37.46966991411011, 63.46966991411009], [-38.0, 63.25], [-38.25, 63.35355339059328], [-38.5, 63.25], [-39.03033008588989, 63.46966991411009], [-39.25, 64.0], [-39.04289321881345, 64.5]]]]}, "2020-07-17T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-41.04289321881345, 64.5], [-41.25, 65.0], [-41.03033008588989, 65.53033008588991], [-40.5, 65.75], [-40.25, 65.64644660940672], [-40.0, 65.75], [-39.75, 65.64644660940672], [-39.5, 65.75], [-39.25, 65.64644660940672], [-39.17677669529661, 65.67677669529664], [-39.03033008588989, 66.03033008588991], [-38.5, 66.25], [-38.25, 66.14644660940672], [-38.0, 66.25], [-37.75, 66.14644660940672], [-37.5, 66.25], [-37.25, 66.14644660940672], [-37.0, 66.25], [-36.46966991411011, 66.03033008588991], [-36.32322330470339, 65.67677669529664], [-36.25, 65.64644660940672], [-36.125, 65.69822330470336], [-36.25, 66.0], [-36.03033008588989, 66.53033008588991], [-35.5, 66.75], [-35.25, 66.64644660940672], [-35.0, 66.75], [-34.75, 66.64644660940672], [-34.67677669529661, 66.67677669529664], [-34.53033008588989, 67.03033008588991], [-34.0, 67.25], [-33.75, 67.14644660940672], [-33.5, 67.25], [-32.96966991411011, 67.03033008588991], [-32.82322330470339, 66.67677669529664], [-32.46966991411011, 66.53033008588991], [-32.25, 66.0], [-32.46966991411011, 65.46966991411009], [-32.875, 65.30177669529664], [-32.75, 65.0], [-32.96966991411011, 64.46966991411009], [-33.5, 64.25], [-33.75, 64.35355339059328], [-34.0, 64.25], [-34.25, 64.35355339059328], [-34.32322330470339, 64.32322330470336], [-34.46966991411011, 63.96966991411009], [-35.0, 63.75], [-35.25, 63.85355339059328], [-35.5, 63.75], [-35.75, 63.85355339059328], [-35.82322330470339, 63.82322330470336], [-35.96966991411011, 63.46966991411009], [-36.5, 63.25], [-37.0, 63.45710678118656], [-37.5, 63.25], [-37.75, 63.35355339059328], [-37.82322330470339, 63.32322330470336], [-37.96966991411011, 62.96966991411009], [-38.5, 62.75], [-38.75, 62.85355339059328], [-39.0, 62.75], [-39.25, 62.85355339059328], [-39.5, 62.75], [-39.75, 62.85355339059328], [-40.0, 62.75], [-40.53033008588989, 62.96966991411009], [-40.67677669529661, 63.32322330470336], [-41.03033008588989, 63.46966991411009], [-41.25, 64.0], [-41.04289321881345, 64.5]]]}, "2020-07-18T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-41.04289321881345, 64.5], [-41.25, 65.0], [-41.03033008588989, 65.53033008588991], [-40.5, 65.75], [-40.25, 65.64644660940672], [-40.0, 65.75], [-39.75, 65.64644660940672], [-39.5, 65.75], [-39.25, 65.64644660940672], [-39.17677669529661, 65.67677669529664], [-39.03033008588989, 66.03033008588991], [-38.5, 66.25], [-38.25, 66.14644660940672], [-38.0, 66.25], [-37.75, 66.14644660940672], [-37.5, 66.25], [-37.25, 66.14644660940672], [-37.0, 66.25], [-36.46966991411011, 66.03033008588991], [-36.32322330470339, 65.67677669529664], [-36.25, 65.64644660940672], [-36.125, 65.69822330470336], [-36.25, 66.0], [-36.03033008588989, 66.53033008588991], [-35.5, 66.75], [-35.25, 66.64644660940672], [-35.0, 66.75], [-34.75, 66.64644660940672], [-34.67677669529661, 66.67677669529664], [-34.53033008588989, 67.03033008588991], [-34.0, 67.25], [-33.75, 67.14644660940672], [-33.5, 67.25], [-32.96966991411011, 67.03033008588991], [-32.82322330470339, 66.67677669529664], [-32.46966991411011, 66.53033008588991], [-32.25, 66.0], [-32.46966991411011, 65.46966991411009], [-32.875, 65.30177669529664], [-32.75, 65.0], [-32.96966991411011, 64.46966991411009], [-33.5, 64.25], [-33.75, 64.35355339059328], [-34.0, 64.25], [-34.25, 64.35355339059328], [-34.32322330470339, 64.32322330470336], [-34.46966991411011, 63.96966991411009], [-35.0, 63.75], [-35.25, 63.85355339059328], [-35.5, 63.75], [-35.75, 63.85355339059328], [-35.82322330470339, 63.82322330470336], [-35.96966991411011, 63.46966991411009], [-36.5, 63.25], [-37.0, 63.45710678118656], [-37.5, 63.25], [-37.75, 63.35355339059328], [-37.82322330470339, 63.32322330470336], [-37.96966991411011, 62.96966991411009], [-38.5, 62.75], [-38.75, 62.85355339059328], [-39.0, 62.75], [-39.25, 62.85355339059328], [-39.5, 62.75], [-39.75, 62.85355339059328], [-40.0, 62.75], [-40.53033008588989, 62.96966991411009], [-40.67677669529661, 63.32322330470336], [-41.03033008588989, 63.46966991411009], [-41.25, 64.0], [-41.04289321881345, 64.5]]]}, "2020-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.25, 65.0], [-41.03033008588989, 65.53033008588991], [-40.5, 65.75], [-40.25, 65.64644660940672], [-40.0, 65.75], [-39.75, 65.64644660940672], [-39.5, 65.75], [-39.25, 65.64644660940672], [-39.17677669529661, 65.67677669529664], [-39.03033008588989, 66.03033008588991], [-38.5, 66.25], [-38.25, 66.14644660940672], [-38.0, 66.25], [-37.75, 66.14644660940672], [-37.5, 66.25], [-37.25, 66.14644660940672], [-37.0, 66.25], [-36.46966991411011, 66.03033008588991], [-36.32322330470339, 65.67677669529664], [-36.25, 65.64644660940672], [-36.125, 65.69822330470336], [-36.25, 66.0], [-36.03033008588989, 66.53033008588991], [-35.5, 66.75], [-34.96966991411011, 66.53033008588991], [-34.75, 66.0], [-34.875, 65.69822330470336], [-34.75, 65.64644660940672], [-34.5, 65.75], [-34.25, 65.64644660940672], [-34.0, 65.75], [-33.75, 65.64644660940672], [-33.5, 65.75], [-32.96966991411011, 65.53033008588991], [-32.75, 65.0], [-32.96966991411011, 64.46966991411009], [-33.5, 64.25], [-33.75, 64.35355339059328], [-34.0, 64.25], [-34.25, 64.35355339059328], [-34.32322330470339, 64.32322330470336], [-34.46966991411011, 63.96966991411009], [-35.0, 63.75], [-35.25, 63.85355339059328], [-35.5, 63.75], [-35.75, 63.85355339059328], [-35.82322330470339, 63.82322330470336], [-35.96966991411011, 63.46966991411009], [-36.5, 63.25], [-37.0, 63.45710678118656], [-37.5, 63.25], [-37.75, 63.35355339059328], [-37.82322330470339, 63.32322330470336], [-37.96966991411011, 62.96966991411009], [-38.5, 62.75], [-38.75, 62.85355339059328], [-39.0, 62.75], [-39.25, 62.85355339059328], [-39.5, 62.75], [-39.75, 62.85355339059328], [-40.0, 62.75], [-40.53033008588989, 62.96966991411009], [-40.67677669529661, 63.32322330470336], [-41.03033008588989, 63.46966991411009], [-41.25, 64.0], [-41.04289321881345, 64.5], [-41.25, 65.0]]], [[[-34.53033008588989, 65.96966991411009], [-34.75, 66.5], [-34.53033008588989, 67.03033008588991], [-34.0, 67.25], [-33.46966991411011, 67.03033008588991], [-33.25, 66.5], [-33.46966991411011, 65.96966991411009], [-34.0, 65.75], [-34.53033008588989, 65.96966991411009]]]]}, "2020-07-20T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-40.17677669529661, 63.32322330470336], [-40.53033008588989, 63.46966991411009], [-40.75, 64.0], [-40.53033008588989, 64.53033008588991], [-40.0, 64.75], [-39.46966991411011, 64.53033008588991], [-39.32322330470339, 64.17677669529664], [-38.96966991411011, 64.03033008588991], [-38.75, 63.5], [-38.96966991411011, 62.96966991411009], [-39.5, 62.75], [-40.03033008588989, 62.96966991411009], [-40.17677669529661, 63.32322330470336]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.8105474737565714}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.6393348099675062}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.246762842467433, 7.708157177315968, 7.475146775589678, 7.808803822661673, 7.680299441239981]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.928522477643753, 12.106169389068327, 11.370621779663566, 11.263359698604347, 8.31010521955335]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.1975116080255788, 2.8889006575883696, 2.604402210397244, 2.6088841960169105, 2.315973214108965]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.822718532711349, 3.8105474737565714, 3.5352779212932433, 3.527830454730747, 2.3485304198479184]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4607020934821007, 1.8795763118238944, 1.6916155183137596, 1.6228689395056197, 1.395080182126447]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7078019304496868, 2.401789146140607, 2.2269659158665327, 2.5418013457627477, 1.3981220877628204]}}