{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:45.894786", "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-May-27_to_2020-May-30_72.5_68.0"}, "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": 2020050002860}, "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": "May 27 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 30 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": 72948.68347573048}, "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": ["Russian Federation"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": ["Kara Sea"]}, "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": 68.0}, "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": 72.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "72.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 63.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 73.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 66.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 70.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[62.75, 66.5], [62.97, 67.03], [63.5, 67.25], [63.75, 67.146], [63.823, 67.177], [63.854, 67.25], [63.75, 67.5], [63.854, 67.75], [63.75, 68.0], [63.854, 68.25], [63.75, 68.5], [63.97, 69.03], [64.5, 69.25], [64.75, 69.146], [64.823, 69.177], [64.97, 69.53], [65.5, 69.75], [65.75, 69.646], [66.0, 69.75], [66.53, 69.53], [66.677, 69.177], [66.75, 69.146], [67.0, 69.25], [67.25, 69.146], [67.375, 69.198], [67.25, 69.5], [67.47, 70.03], [68.0, 70.25], [68.25, 70.146], [68.5, 70.25], [68.75, 70.146], [69.0, 70.25], [69.25, 70.146], [69.5, 70.25], [69.75, 70.146], [70.0, 70.25], [70.25, 70.146], [70.5, 70.25], [70.75, 70.146], [70.823, 70.177], [70.97, 70.53], [71.5, 70.75], [71.75, 70.646], [72.0, 70.75], [72.53, 70.53], [72.75, 70.0], [72.646, 69.75], [72.75, 69.5], [72.646, 69.251], [72.646, 69.25], [72.677, 69.177], [72.749, 69.146], [72.75, 69.146], [73.0, 69.25], [73.53, 69.03], [73.75, 68.5], [73.646, 68.25], [73.75, 68.0], [73.53, 67.47], [73.177, 67.323], [73.03, 66.97], [72.5, 66.75], [72.25, 66.854], [72.0, 66.75], [71.75, 66.854], [71.5, 66.75], [71.25, 66.854], [71.0, 66.75], [70.75, 66.854], [70.5, 66.75], [70.25, 66.854], [70.0, 66.75], [69.75, 66.854], [69.5, 66.75], [69.25, 66.854], [69.0, 66.75], [68.47, 66.97], [68.323, 67.323], [68.25, 67.354], [68.0, 67.25], [67.75, 67.354], [67.677, 67.323], [67.53, 66.97], [67.0, 66.75], [66.47, 66.97], [66.25, 67.5], [66.354, 67.75], [66.323, 67.823], [66.25, 67.854], [66.0, 67.75], [65.75, 67.854], [65.5, 67.75], [66.03, 67.53], [66.25, 67.0], [66.03, 66.47], [65.5, 66.25], [65.25, 66.354], [65.0, 66.25], [64.75, 66.354], [64.677, 66.323], [64.53, 65.97], [64.0, 65.75], [63.75, 65.854], [63.5, 65.75], [62.97, 65.97], [62.75, 66.5]], [[65.25, 67.854], [65.177, 67.823], [65.146, 67.75], [65.177, 67.677], [65.25, 67.646], [65.5, 67.75], [65.25, 67.854]], [[68.25, 68.646], [68.375, 68.698], [68.323, 68.823], [68.25, 68.854], [68.125, 68.802], [68.177, 68.677], [68.25, 68.646]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Arctic"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-05-27T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[63.75, 65.85355339059328], [63.5, 65.75], [62.96966991411009, 65.96966991411009], [62.75, 66.5], [62.96966991411009, 67.03033008588991], [63.5, 67.25], [63.75, 67.14644660940672], [63.82322330470336, 67.17677669529664], [63.85355339059328, 67.25], [63.75, 67.5], [63.85355339059328, 67.75], [63.75, 68.0], [63.85355339059328, 68.25], [63.75, 68.5], [63.96966991411009, 69.03033008588991], [64.5, 69.25], [64.75, 69.14644660940672], [64.82322330470336, 69.17677669529664], [64.96966991411009, 69.53033008588991], [65.5, 69.75], [65.75, 69.64644660940672], [66.0, 69.75], [66.53033008588991, 69.53033008588991], [66.67677669529664, 69.17677669529664], [66.75, 69.14644660940672], [67.0, 69.25], [67.25, 69.14644660940672], [67.5, 69.25], [68.03033008588991, 69.03033008588991], [68.17677669529664, 68.67677669529664], [68.25, 68.64644660940672], [68.375, 68.69822330470336], [68.25, 69.0], [68.46966991411009, 69.53033008588991], [69.0, 69.75], [69.25, 69.64644660940672], [69.5, 69.75], [69.75, 69.64644660940672], [70.0, 69.75], [70.25, 69.64644660940672], [70.5, 69.75], [70.75, 69.64644660940672], [71.0, 69.75], [71.25, 69.64644660940672], [71.5, 69.75], [71.75, 69.64644660940672], [72.0, 69.75], [72.53033008588991, 69.53033008588991], [72.67677669529664, 69.17677669529664], [72.75, 69.14644660940672], [73.0, 69.25], [73.53033008588991, 69.03033008588991], [73.75, 68.5], [73.64644660940672, 68.25], [73.75, 68.0], [73.53033008588991, 67.46966991411009], [73.17677669529664, 67.32322330470336], [73.03033008588991, 66.96966991411009], [72.5, 66.75], [72.25, 66.85355339059328], [72.0, 66.75], [71.75, 66.85355339059328], [71.5, 66.75], [71.25, 66.85355339059328], [71.0, 66.75], [70.75, 66.85355339059328], [70.5, 66.75], [70.25, 66.85355339059328], [70.0, 66.75], [69.75, 66.85355339059328], [69.5, 66.75], [69.25, 66.85355339059328], [69.0, 66.75], [68.46966991411009, 66.96966991411009], [68.32322330470336, 67.32322330470336], [68.25, 67.35355339059328], [68.0, 67.25], [67.75, 67.35355339059328], [67.67677669529664, 67.32322330470336], [67.53033008588991, 66.96966991411009], [67.0, 66.75], [66.46966991411009, 66.96966991411009], [66.25, 67.5], [66.35355339059328, 67.75], [66.32322330470336, 67.82322330470336], [66.25, 67.85355339059328], [66.0, 67.75], [65.75, 67.85355339059328], [65.5, 67.75], [66.03033008588991, 67.53033008588991], [66.25, 67.0], [66.03033008588991, 66.46966991411009], [65.5, 66.25], [65.25, 66.35355339059328], [65.0, 66.25], [64.75, 66.35355339059328], [64.67677669529664, 66.32322330470336], [64.53033008588991, 65.96966991411009], [64.0, 65.75], [63.75, 65.85355339059328]], [[65.5, 67.75], [65.25, 67.85355339059328], [65.17677669529664, 67.82322330470336], [65.14644660940672, 67.75], [65.17677669529664, 67.67677669529664], [65.25, 67.64644660940672], [65.5, 67.75]]]}, "2020-05-28T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[63.75, 65.85355339059328], [63.5, 65.75], [62.96966991411009, 65.96966991411009], [62.75, 66.5], [62.96966991411009, 67.03033008588991], [63.5, 67.25], [63.75, 67.14644660940672], [63.82322330470336, 67.17677669529664], [63.85355339059328, 67.25], [63.75, 67.5], [63.85355339059328, 67.75], [63.75, 68.0], [63.85355339059328, 68.25], [63.75, 68.5], [63.96966991411009, 69.03033008588991], [64.5, 69.25], [64.75, 69.14644660940672], [64.82322330470336, 69.17677669529664], [64.96966991411009, 69.53033008588991], [65.5, 69.75], [65.75, 69.64644660940672], [66.0, 69.75], [66.53033008588991, 69.53033008588991], [66.67677669529664, 69.17677669529664], [66.75, 69.14644660940672], [67.0, 69.25], [67.25, 69.14644660940672], [67.375, 69.19822330470336], [67.25, 69.5], [67.46966991411009, 70.03033008588991], [68.0, 70.25], [68.25, 70.14644660940672], [68.5, 70.25], [68.75, 70.14644660940672], [69.0, 70.25], [69.25, 70.14644660940672], [69.5, 70.25], [69.75, 70.14644660940672], [70.0, 70.25], [70.25, 70.14644660940672], [70.5, 70.25], [70.75, 70.14644660940672], [70.82322330470336, 70.17677669529664], [70.96966991411009, 70.53033008588991], [71.5, 70.75], [71.75, 70.64644660940672], [72.0, 70.75], [72.53033008588991, 70.53033008588991], [72.75, 70.0], [72.64644660940672, 69.75], [72.75, 69.5], [72.64644660940672, 69.25], [72.67677669529664, 69.17677669529664], [72.75, 69.14644660940672], [73.0, 69.25], [73.53033008588991, 69.03033008588991], [73.75, 68.5], [73.64644660940672, 68.25], [73.75, 68.0], [73.53033008588991, 67.46966991411009], [73.17677669529664, 67.32322330470336], [73.03033008588991, 66.96966991411009], [72.5, 66.75], [72.25, 66.85355339059328], [72.0, 66.75], [71.75, 66.85355339059328], [71.5, 66.75], [71.25, 66.85355339059328], [71.0, 66.75], [70.75, 66.85355339059328], [70.5, 66.75], [70.25, 66.85355339059328], [70.0, 66.75], [69.75, 66.85355339059328], [69.5, 66.75], [69.25, 66.85355339059328], [69.0, 66.75], [68.46966991411009, 66.96966991411009], [68.32322330470336, 67.32322330470336], [68.25, 67.35355339059328], [68.0, 67.25], [67.75, 67.35355339059328], [67.67677669529664, 67.32322330470336], [67.53033008588991, 66.96966991411009], [67.0, 66.75], [66.46966991411009, 66.96966991411009], [66.25, 67.5], [66.35355339059328, 67.75], [66.32322330470336, 67.82322330470336], [66.25, 67.85355339059328], [66.0, 67.75], [65.75, 67.85355339059328], [65.5, 67.75], [66.03033008588991, 67.53033008588991], [66.25, 67.0], [66.03033008588991, 66.46966991411009], [65.5, 66.25], [65.25, 66.35355339059328], [65.0, 66.25], [64.75, 66.35355339059328], [64.67677669529664, 66.32322330470336], [64.53033008588991, 65.96966991411009], [64.0, 65.75], [63.75, 65.85355339059328]], [[65.5, 67.75], [65.25, 67.85355339059328], [65.17677669529664, 67.82322330470336], [65.14644660940672, 67.75], [65.17677669529664, 67.67677669529664], [65.25, 67.64644660940672], [65.5, 67.75]], [[68.17677669529664, 68.67677669529664], [68.25, 68.64644660940672], [68.375, 68.69822330470336], [68.32322330470336, 68.82322330470336], [68.25, 68.85355339059328], [68.125, 68.80177669529664], [68.17677669529664, 68.67677669529664]]]}, "2020-05-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[63.75, 65.85355339059328], [63.5, 65.75], [62.96966991411009, 65.96966991411009], [62.75, 66.5], [62.96966991411009, 67.03033008588991], [63.5, 67.25], [63.75, 67.14644660940672], [63.82322330470336, 67.17677669529664], [63.85355339059328, 67.25], [63.75, 67.5], [63.85355339059328, 67.75], [63.75, 68.0], [63.85355339059328, 68.25], [63.75, 68.5], [63.96966991411009, 69.03033008588991], [64.5, 69.25], [64.75, 69.14644660940672], [64.82322330470336, 69.17677669529664], [64.96966991411009, 69.53033008588991], [65.5, 69.75], [65.75, 69.64644660940672], [66.0, 69.75], [66.53033008588991, 69.53033008588991], [66.67677669529664, 69.17677669529664], [66.75, 69.14644660940672], [67.0, 69.25], [67.25, 69.14644660940672], [67.375, 69.19822330470336], [67.25, 69.5], [67.46966991411009, 70.03033008588991], [68.0, 70.25], [68.25, 70.14644660940672], [68.5, 70.25], [68.75, 70.14644660940672], [69.0, 70.25], [69.25, 70.14644660940672], [69.5, 70.25], [69.75, 70.14644660940672], [70.0, 70.25], [70.25, 70.14644660940672], [70.5, 70.25], [70.75, 70.14644660940672], [70.82322330470336, 70.17677669529664], [70.96966991411009, 70.53033008588991], [71.5, 70.75], [71.75, 70.64644660940672], [72.0, 70.75], [72.53033008588991, 70.53033008588991], [72.75, 70.0], [72.64644660940672, 69.75], [72.75, 69.5], [72.64644660940672, 69.25], [72.67677669529664, 69.17677669529664], [72.75, 69.14644660940672], [73.0, 69.25], [73.53033008588991, 69.03033008588991], [73.75, 68.5], [73.64644660940672, 68.25], [73.75, 68.0], [73.53033008588991, 67.46966991411009], [73.17677669529664, 67.32322330470336], [73.03033008588991, 66.96966991411009], [72.5, 66.75], [72.25, 66.85355339059328], [72.0, 66.75], [71.75, 66.85355339059328], [71.5, 66.75], [71.25, 66.85355339059328], [71.0, 66.75], [70.75, 66.85355339059328], [70.5, 66.75], [70.25, 66.85355339059328], [70.0, 66.75], [69.75, 66.85355339059328], [69.5, 66.75], [69.25, 66.85355339059328], [69.0, 66.75], [68.46966991411009, 66.96966991411009], [68.32322330470336, 67.32322330470336], [68.25, 67.35355339059328], [68.0, 67.25], [67.75, 67.35355339059328], [67.67677669529664, 67.32322330470336], [67.53033008588991, 66.96966991411009], [67.0, 66.75], [66.46966991411009, 66.96966991411009], [66.25, 67.5], [66.35355339059328, 67.75], [66.32322330470336, 67.82322330470336], [66.25, 67.85355339059328], [66.0, 67.75], [65.75, 67.85355339059328], [65.5, 67.75], [66.03033008588991, 67.53033008588991], [66.25, 67.0], [66.03033008588991, 66.46966991411009], [65.5, 66.25], [65.25, 66.35355339059328], [65.0, 66.25], [64.75, 66.35355339059328], [64.67677669529664, 66.32322330470336], [64.53033008588991, 65.96966991411009], [64.0, 65.75], [63.75, 65.85355339059328]], [[65.5, 67.75], [65.25, 67.85355339059328], [65.17677669529664, 67.82322330470336], [65.14644660940672, 67.75], [65.17677669529664, 67.67677669529664], [65.25, 67.64644660940672], [65.5, 67.75]], [[68.17677669529664, 68.67677669529664], [68.25, 68.64644660940672], [68.375, 68.69822330470336], [68.32322330470336, 68.82322330470336], [68.25, 68.85355339059328], [68.125, 68.80177669529664], [68.17677669529664, 68.67677669529664]]]}, "2020-05-30T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[68.25, 68.85355339059328], [68.0, 68.75], [67.46966991411009, 68.96966991411009], [67.25, 69.5], [67.46966991411009, 70.03033008588991], [68.0, 70.25], [68.25, 70.14644660940672], [68.5, 70.25], [68.75, 70.14644660940672], [69.0, 70.25], [69.25, 70.14644660940672], [69.5, 70.25], [69.75, 70.14644660940672], [70.0, 70.25], [70.25, 70.14644660940672], [70.5, 70.25], [70.75, 70.14644660940672], [70.82322330470336, 70.17677669529664], [70.96966991411009, 70.53033008588991], [71.5, 70.75], [71.75, 70.64644660940672], [72.0, 70.75], [72.53033008588991, 70.53033008588991], [72.75, 70.0], [72.64644660940672, 69.75], [72.75, 69.5], [72.64644660940672, 69.25], [72.69822330470336, 69.125], [73.0, 69.25], [73.53033008588991, 69.03033008588991], [73.75, 68.5], [73.53033008588991, 67.96966991411009], [73.17677669529664, 67.82322330470336], [73.03033008588991, 67.46966991411009], [72.5, 67.25], [71.96966991411009, 67.46966991411009], [71.75, 68.0], [71.875, 68.30177669529664], [71.46966991411009, 68.46966991411009], [71.32322330470336, 68.82322330470336], [71.25, 68.85355339059328], [71.0, 68.75], [70.75, 68.85355339059328], [70.5, 68.75], [70.25, 68.85355339059328], [70.0, 68.75], [69.75, 68.85355339059328], [69.5, 68.75], [69.25, 68.85355339059328], [69.0, 68.75], [68.75, 68.85355339059328], [68.5, 68.75], [68.25, 68.85355339059328]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.023993605127487}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.078711244812518}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.21230456707741, 8.477645391258363, 8.41776196314271, 4.408522822525583]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.0462517624876, 11.511156498553134, 11.29816806454761, 7.7557970315007765]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.47811701992744, 7.811929786436524, 7.478097655710186, 4.17476674177835]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.830591952623195, 10.023993605127487, 9.287611473953234, 5.989255604322523]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8362386841072036, 2.307629647741468, 2.1919206448254624, 1.559760111656178]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2632499984666823, 3.0097355118424702, 3.0547359342037104, 1.8305784125902893]}}