{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:26:20.625977", "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": "2021-Jul-07_to_2021-Jul-09_65.5_-75.0"}, "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": 2021070001858}, "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 07 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 09 2021"}, "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": 66900.1668873792}, "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": ["Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": -75.0}, "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": 65.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "65.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 59.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 68.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -76.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -73.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[59.5, -74.75], [59.75, -74.854], [59.823, -74.823], [59.97, -74.47], [60.5, -74.25], [60.75, -74.354], [60.823, -74.323], [60.97, -73.97], [61.5, -73.75], [61.75, -73.854], [61.823, -73.823], [61.97, -73.47], [62.5, -73.25], [62.75, -73.354], [63.0, -73.25], [63.25, -73.354], [63.5, -73.25], [63.75, -73.354], [64.0, -73.25], [64.25, -73.354], [64.5, -73.25], [64.75, -73.354], [65.0, -73.25], [65.53, -73.47], [65.677, -73.823], [65.75, -73.854], [66.0, -73.75], [66.25, -73.854], [66.5, -73.75], [66.75, -73.854], [66.823, -73.823], [66.854, -73.75], [66.75, -73.5], [66.854, -73.25], [66.75, -73.0], [66.97, -72.47], [67.5, -72.25], [67.75, -72.354], [68.0, -72.25], [68.53, -72.47], [68.75, -73.0], [68.543, -73.5], [68.75, -74.0], [68.646, -74.25], [68.75, -74.5], [68.53, -75.03], [68.177, -75.177], [68.146, -75.25], [68.25, -75.5], [68.146, -75.75], [68.25, -76.0], [68.03, -76.53], [67.5, -76.75], [67.25, -76.646], [67.0, -76.75], [66.75, -76.646], [66.5, -76.75], [66.25, -76.646], [66.177, -76.677], [66.03, -77.03], [65.5, -77.25], [65.25, -77.146], [65.0, -77.25], [64.75, -77.146], [64.5, -77.25], [64.25, -77.146], [64.0, -77.25], [63.75, -77.146], [63.5, -77.25], [63.25, -77.146], [63.0, -77.25], [62.75, -77.146], [62.5, -77.25], [62.25, -77.146], [62.0, -77.25], [61.75, -77.146], [61.5, -77.25], [61.25, -77.146], [61.0, -77.25], [60.47, -77.03], [60.323, -76.677], [60.25, -76.646], [60.0, -76.75], [59.75, -76.646], [59.5, -76.75], [59.25, -76.646], [59.0, -76.75], [58.47, -76.53], [58.25, -76.0], [58.47, -75.47], [58.823, -75.323], [58.97, -74.97], [59.5, -74.75]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-07-07T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[58.82322330470336, -75.32322330470336], [58.96966991411009, -74.96966991411009], [59.5, -74.75], [59.75, -74.85355339059328], [59.82322330470336, -74.82322330470336], [59.96966991411009, -74.46966991411009], [60.5, -74.25], [60.75, -74.35355339059328], [60.82322330470336, -74.32322330470336], [60.96966991411009, -73.96966991411009], [61.5, -73.75], [61.75, -73.85355339059328], [61.82322330470336, -73.82322330470336], [61.96966991411009, -73.46966991411009], [62.5, -73.25], [62.75, -73.35355339059328], [63.0, -73.25], [63.25, -73.35355339059328], [63.5, -73.25], [63.75, -73.35355339059328], [64.0, -73.25], [64.25, -73.35355339059328], [64.5, -73.25], [64.75, -73.35355339059328], [65.0, -73.25], [65.53033008588991, -73.46966991411009], [65.67677669529664, -73.82322330470336], [65.75, -73.85355339059328], [66.0, -73.75], [66.25, -73.85355339059328], [66.5, -73.75], [66.75, -73.85355339059328], [66.82322330470336, -73.82322330470336], [66.85355339059328, -73.75], [66.75, -73.5], [66.85355339059328, -73.25], [66.75, -73.0], [66.96966991411009, -72.46966991411009], [67.5, -72.25], [67.75, -72.35355339059328], [68.0, -72.25], [68.53033008588991, -72.46966991411009], [68.75, -73.0], [68.54289321881346, -73.5], [68.75, -74.0], [68.64644660940672, -74.25], [68.75, -74.5], [68.53033008588991, -75.03033008588991], [68.17677669529664, -75.17677669529664], [68.14644660940672, -75.25], [68.25, -75.5], [68.14644660940672, -75.75], [68.25, -76.0], [68.03033008588991, -76.53033008588991], [67.5, -76.75], [67.25, -76.64644660940672], [67.0, -76.75], [66.75, -76.64644660940672], [66.5, -76.75], [66.25, -76.64644660940672], [66.17677669529664, -76.67677669529664], [66.03033008588991, -77.03033008588991], [65.5, -77.25], [65.25, -77.14644660940672], [65.0, -77.25], [64.75, -77.14644660940672], [64.5, -77.25], [64.25, -77.14644660940672], [64.0, -77.25], [63.75, -77.14644660940672], [63.5, -77.25], [63.25, -77.14644660940672], [63.0, -77.25], [62.75, -77.14644660940672], [62.5, -77.25], [62.25, -77.14644660940672], [62.0, -77.25], [61.75, -77.14644660940672], [61.5, -77.25], [61.25, -77.14644660940672], [61.0, -77.25], [60.46966991411009, -77.03033008588991], [60.32322330470336, -76.67677669529664], [60.25, -76.64644660940672], [60.0, -76.75], [59.75, -76.64644660940672], [59.5, -76.75], [59.25, -76.64644660940672], [59.0, -76.75], [58.46966991411009, -76.53033008588991], [58.25, -76.0], [58.46966991411009, -75.46966991411009], [58.82322330470336, -75.32322330470336]]]}, "2021-07-08T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[58.82322330470336, -75.32322330470336], [58.96966991411009, -74.96966991411009], [59.5, -74.75], [59.75, -74.85355339059328], [59.82322330470336, -74.82322330470336], [59.96966991411009, -74.46966991411009], [60.5, -74.25], [60.75, -74.35355339059328], [60.82322330470336, -74.32322330470336], [60.96966991411009, -73.96966991411009], [61.5, -73.75], [61.75, -73.85355339059328], [61.82322330470336, -73.82322330470336], [61.96966991411009, -73.46966991411009], [62.5, -73.25], [62.75, -73.35355339059328], [63.0, -73.25], [63.25, -73.35355339059328], [63.5, -73.25], [63.75, -73.35355339059328], [64.0, -73.25], [64.25, -73.35355339059328], [64.5, -73.25], [64.75, -73.35355339059328], [65.0, -73.25], [65.53033008588991, -73.46966991411009], [65.67677669529664, -73.82322330470336], [65.75, -73.85355339059328], [66.0, -73.75], [66.25, -73.85355339059328], [66.5, -73.75], [66.75, -73.85355339059328], [66.82322330470336, -73.82322330470336], [66.85355339059328, -73.75], [66.75, -73.5], [66.85355339059328, -73.25], [66.75, -73.0], [66.96966991411009, -72.46966991411009], [67.5, -72.25], [67.75, -72.35355339059328], [68.0, -72.25], [68.53033008588991, -72.46966991411009], [68.75, -73.0], [68.54289321881346, -73.5], [68.75, -74.0], [68.64644660940672, -74.25], [68.75, -74.5], [68.53033008588991, -75.03033008588991], [68.17677669529664, -75.17677669529664], [68.14644660940672, -75.25], [68.25, -75.5], [68.14644660940672, -75.75], [68.25, -76.0], [68.03033008588991, -76.53033008588991], [67.5, -76.75], [67.25, -76.64644660940672], [67.0, -76.75], [66.75, -76.64644660940672], [66.5, -76.75], [66.25, -76.64644660940672], [66.17677669529664, -76.67677669529664], [66.03033008588991, -77.03033008588991], [65.5, -77.25], [65.25, -77.14644660940672], [65.0, -77.25], [64.75, -77.14644660940672], [64.5, -77.25], [64.25, -77.14644660940672], [64.0, -77.25], [63.75, -77.14644660940672], [63.5, -77.25], [63.25, -77.14644660940672], [63.0, -77.25], [62.75, -77.14644660940672], [62.5, -77.25], [62.25, -77.14644660940672], [62.0, -77.25], [61.75, -77.14644660940672], [61.5, -77.25], [61.25, -77.14644660940672], [61.0, -77.25], [60.46966991411009, -77.03033008588991], [60.32322330470336, -76.67677669529664], [60.25, -76.64644660940672], [60.0, -76.75], [59.75, -76.64644660940672], [59.5, -76.75], [59.25, -76.64644660940672], [59.0, -76.75], [58.46966991411009, -76.53033008588991], [58.25, -76.0], [58.46966991411009, -75.46966991411009], [58.82322330470336, -75.32322330470336]]]}, "2021-07-09T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[58.82322330470336, -75.32322330470336], [58.96966991411009, -74.96966991411009], [59.5, -74.75], [59.75, -74.85355339059328], [59.82322330470336, -74.82322330470336], [59.96966991411009, -74.46966991411009], [60.5, -74.25], [60.75, -74.35355339059328], [60.82322330470336, -74.32322330470336], [60.96966991411009, -73.96966991411009], [61.5, -73.75], [61.75, -73.85355339059328], [61.82322330470336, -73.82322330470336], [61.96966991411009, -73.46966991411009], [62.5, -73.25], [62.75, -73.35355339059328], [63.0, -73.25], [63.25, -73.35355339059328], [63.5, -73.25], [63.75, -73.35355339059328], [64.0, -73.25], [64.25, -73.35355339059328], [64.5, -73.25], [64.75, -73.35355339059328], [65.0, -73.25], [65.53033008588991, -73.46966991411009], [65.67677669529664, -73.82322330470336], [65.75, -73.85355339059328], [66.0, -73.75], [66.25, -73.85355339059328], [66.5, -73.75], [66.75, -73.85355339059328], [66.82322330470336, -73.82322330470336], [66.85355339059328, -73.75], [66.75, -73.5], [66.85355339059328, -73.25], [66.75, -73.0], [66.96966991411009, -72.46966991411009], [67.5, -72.25], [67.75, -72.35355339059328], [68.0, -72.25], [68.53033008588991, -72.46966991411009], [68.75, -73.0], [68.54289321881346, -73.5], [68.75, -74.0], [68.64644660940672, -74.25], [68.75, -74.5], [68.53033008588991, -75.03033008588991], [68.17677669529664, -75.17677669529664], [68.14644660940672, -75.25], [68.25, -75.5], [68.14644660940672, -75.75], [68.25, -76.0], [68.03033008588991, -76.53033008588991], [67.5, -76.75], [67.25, -76.64644660940672], [67.0, -76.75], [66.75, -76.64644660940672], [66.5, -76.75], [66.25, -76.64644660940672], [66.17677669529664, -76.67677669529664], [66.03033008588991, -77.03033008588991], [65.5, -77.25], [65.25, -77.14644660940672], [65.0, -77.25], [64.75, -77.14644660940672], [64.5, -77.25], [64.25, -77.14644660940672], [64.0, -77.25], [63.75, -77.14644660940672], [63.5, -77.25], [63.25, -77.14644660940672], [63.0, -77.25], [62.75, -77.14644660940672], [62.5, -77.25], [62.25, -77.14644660940672], [62.0, -77.25], [61.75, -77.14644660940672], [61.5, -77.25], [61.25, -77.14644660940672], [61.0, -77.25], [60.46966991411009, -77.03033008588991], [60.32322330470336, -76.67677669529664], [60.25, -76.64644660940672], [60.0, -76.75], [59.75, -76.64644660940672], [59.5, -76.75], [59.25, -76.64644660940672], [59.0, -76.75], [58.46966991411009, -76.53033008588991], [58.25, -76.0], [58.46966991411009, -75.46966991411009], [58.82322330470336, -75.32322330470336]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.459980350969772}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.772408735266024}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-31.11478554191723, -30.74981620943197, -32.26734979612303]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-21.132298727912854, -22.19428073320219, -23.941224105164594]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [10.207154150640251, 10.360999460678448, 8.749072594479376]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.459980350969772, 12.003624829073402, 9.558779838940296]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6807257172683585, 1.6929660606660721, 1.4343782441994104]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9858830225598456, 1.8996785826746347, 1.5953143396326477]}}