{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:11:28.238503", "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-Feb-08_to_2020-Feb-11_84.5_-69.0"}, "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": 2020020001447}, "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": "February 08 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 11 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": 79296.7145978893}, "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": -69.0}, "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": 84.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "84.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 82.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 91.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -70.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -67.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[89.53, -69.53], [89.177, -69.677], [89.03, -70.03], [88.5, -70.25], [88.25, -70.146], [88.0, -70.25], [87.75, -70.146], [87.677, -70.177], [87.53, -70.53], [87.0, -70.75], [86.75, -70.646], [86.5, -70.75], [86.0, -70.543], [85.5, -70.75], [85.25, -70.646], [85.0, -70.75], [84.75, -70.646], [84.5, -70.75], [84.25, -70.646], [84.0, -70.75], [83.75, -70.646], [83.5, -70.75], [83.25, -70.646], [83.0, -70.75], [82.75, -70.646], [82.677, -70.677], [82.53, -71.03], [82.0, -71.25], [81.47, -71.03], [81.25, -70.5], [81.47, -69.97], [81.823, -69.823], [81.854, -69.75], [81.823, -69.677], [81.47, -69.53], [81.25, -69.0], [81.47, -68.47], [82.0, -68.25], [82.25, -68.354], [82.323, -68.323], [82.47, -67.97], [83.0, -67.75], [83.25, -67.854], [83.323, -67.823], [83.47, -67.47], [84.0, -67.25], [84.25, -67.354], [84.5, -67.25], [84.75, -67.354], [85.0, -67.25], [85.25, -67.354], [85.323, -67.323], [85.47, -66.97], [86.0, -66.75], [86.25, -66.854], [86.5, -66.75], [86.75, -66.854], [87.0, -66.75], [87.25, -66.854], [87.5, -66.75], [87.75, -66.854], [88.0, -66.75], [88.25, -66.854], [88.5, -66.75], [89.03, -66.97], [89.177, -67.323], [89.25, -67.354], [89.5, -67.25], [89.75, -67.354], [90.0, -67.25], [90.25, -67.354], [90.5, -67.25], [90.75, -67.354], [91.0, -67.25], [91.53, -67.47], [91.75, -68.0], [91.53, -68.53], [91.0, -68.75], [90.75, -68.646], [90.5, -68.75], [90.25, -68.646], [90.0, -68.75], [89.75, -68.646], [89.625, -68.698], [89.75, -69.0], [89.53, -69.53]]]}}, "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": {"2020-02-08T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[81.82322330470336, -69.82322330470336], [81.85355339059328, -69.75], [81.82322330470336, -69.67677669529664], [81.46966991411009, -69.53033008588991], [81.25, -69.0], [81.46966991411009, -68.46966991411009], [82.0, -68.25], [82.25, -68.35355339059328], [82.32322330470336, -68.32322330470336], [82.46966991411009, -67.96966991411009], [83.0, -67.75], [83.25, -67.85355339059328], [83.32322330470336, -67.82322330470336], [83.46966991411009, -67.46966991411009], [84.0, -67.25], [84.25, -67.35355339059328], [84.5, -67.25], [84.75, -67.35355339059328], [85.0, -67.25], [85.25, -67.35355339059328], [85.32322330470336, -67.32322330470336], [85.46966991411009, -66.96966991411009], [86.0, -66.75], [86.25, -66.85355339059328], [86.5, -66.75], [86.75, -66.85355339059328], [87.0, -66.75], [87.25, -66.85355339059328], [87.5, -66.75], [87.75, -66.85355339059328], [88.0, -66.75], [88.25, -66.85355339059328], [88.5, -66.75], [89.03033008588991, -66.96966991411009], [89.17677669529664, -67.32322330470336], [89.25, -67.35355339059328], [89.5, -67.25], [89.75, -67.35355339059328], [90.0, -67.25], [90.25, -67.35355339059328], [90.5, -67.25], [90.75, -67.35355339059328], [91.0, -67.25], [91.53033008588991, -67.46966991411009], [91.75, -68.0], [91.53033008588991, -68.53033008588991], [91.0, -68.75], [90.75, -68.64644660940672], [90.5, -68.75], [90.25, -68.64644660940672], [90.0, -68.75], [89.75, -68.64644660940672], [89.625, -68.69822330470336], [89.75, -69.0], [89.53033008588991, -69.53033008588991], [89.17677669529664, -69.67677669529664], [89.03033008588991, -70.03033008588991], [88.5, -70.25], [88.25, -70.14644660940672], [88.0, -70.25], [87.75, -70.14644660940672], [87.67677669529664, -70.17677669529664], [87.53033008588991, -70.53033008588991], [87.0, -70.75], [86.75, -70.64644660940672], [86.5, -70.75], [86.0, -70.54289321881346], [85.5, -70.75], [85.25, -70.64644660940672], [85.0, -70.75], [84.75, -70.64644660940672], [84.5, -70.75], [84.25, -70.64644660940672], [84.0, -70.75], [83.75, -70.64644660940672], [83.5, -70.75], [83.25, -70.64644660940672], [83.0, -70.75], [82.75, -70.64644660940672], [82.67677669529664, -70.67677669529664], [82.53033008588991, -71.03033008588991], [82.0, -71.25], [81.46966991411009, -71.03033008588991], [81.25, -70.5], [81.46966991411009, -69.96966991411009], [81.82322330470336, -69.82322330470336]]]}, "2020-02-09T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[81.82322330470336, -69.82322330470336], [81.85355339059328, -69.75], [81.82322330470336, -69.67677669529664], [81.46966991411009, -69.53033008588991], [81.25, -69.0], [81.46966991411009, -68.46966991411009], [82.0, -68.25], [82.25, -68.35355339059328], [82.32322330470336, -68.32322330470336], [82.46966991411009, -67.96966991411009], [83.0, -67.75], [83.25, -67.85355339059328], [83.32322330470336, -67.82322330470336], [83.46966991411009, -67.46966991411009], [84.0, -67.25], [84.25, -67.35355339059328], [84.5, -67.25], [84.75, -67.35355339059328], [85.0, -67.25], [85.25, -67.35355339059328], [85.32322330470336, -67.32322330470336], [85.46966991411009, -66.96966991411009], [86.0, -66.75], [86.25, -66.85355339059328], [86.5, -66.75], [86.75, -66.85355339059328], [87.0, -66.75], [87.25, -66.85355339059328], [87.5, -66.75], [87.75, -66.85355339059328], [88.0, -66.75], [88.25, -66.85355339059328], [88.5, -66.75], [89.03033008588991, -66.96966991411009], [89.17677669529664, -67.32322330470336], [89.25, -67.35355339059328], [89.5, -67.25], [89.75, -67.35355339059328], [90.0, -67.25], [90.25, -67.35355339059328], [90.5, -67.25], [90.75, -67.35355339059328], [91.0, -67.25], [91.53033008588991, -67.46966991411009], [91.75, -68.0], [91.53033008588991, -68.53033008588991], [91.0, -68.75], [90.75, -68.64644660940672], [90.5, -68.75], [90.25, -68.64644660940672], [90.0, -68.75], [89.75, -68.64644660940672], [89.625, -68.69822330470336], [89.75, -69.0], [89.53033008588991, -69.53033008588991], [89.17677669529664, -69.67677669529664], [89.03033008588991, -70.03033008588991], [88.5, -70.25], [88.25, -70.14644660940672], [88.0, -70.25], [87.75, -70.14644660940672], [87.67677669529664, -70.17677669529664], [87.53033008588991, -70.53033008588991], [87.0, -70.75], [86.75, -70.64644660940672], [86.5, -70.75], [86.0, -70.54289321881346], [85.5, -70.75], [85.25, -70.64644660940672], [85.0, -70.75], [84.75, -70.64644660940672], [84.5, -70.75], [84.25, -70.64644660940672], [84.0, -70.75], [83.75, -70.64644660940672], [83.5, -70.75], [83.25, -70.64644660940672], [83.0, -70.75], [82.75, -70.64644660940672], [82.67677669529664, -70.67677669529664], [82.53033008588991, -71.03033008588991], [82.0, -71.25], [81.46966991411009, -71.03033008588991], [81.25, -70.5], [81.46966991411009, -69.96966991411009], [81.82322330470336, -69.82322330470336]]]}, "2020-02-10T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[81.82322330470336, -69.82322330470336], [81.85355339059328, -69.75], [81.82322330470336, -69.67677669529664], [81.46966991411009, -69.53033008588991], [81.25, -69.0], [81.46966991411009, -68.46966991411009], [82.0, -68.25], [82.25, -68.35355339059328], [82.32322330470336, -68.32322330470336], [82.46966991411009, -67.96966991411009], [83.0, -67.75], [83.25, -67.85355339059328], [83.32322330470336, -67.82322330470336], [83.46966991411009, -67.46966991411009], [84.0, -67.25], [84.25, -67.35355339059328], [84.5, -67.25], [84.75, -67.35355339059328], [85.0, -67.25], [85.25, -67.35355339059328], [85.32322330470336, -67.32322330470336], [85.46966991411009, -66.96966991411009], [86.0, -66.75], [86.25, -66.85355339059328], [86.5, -66.75], [86.75, -66.85355339059328], [87.0, -66.75], [87.25, -66.85355339059328], [87.5, -66.75], [87.75, -66.85355339059328], [88.0, -66.75], [88.25, -66.85355339059328], [88.5, -66.75], [89.03033008588991, -66.96966991411009], [89.17677669529664, -67.32322330470336], [89.25, -67.35355339059328], [89.5, -67.25], [89.75, -67.35355339059328], [90.0, -67.25], [90.25, -67.35355339059328], [90.5, -67.25], [90.75, -67.35355339059328], [91.0, -67.25], [91.53033008588991, -67.46966991411009], [91.75, -68.0], [91.53033008588991, -68.53033008588991], [91.0, -68.75], [90.75, -68.64644660940672], [90.5, -68.75], [90.25, -68.64644660940672], [90.0, -68.75], [89.75, -68.64644660940672], [89.625, -68.69822330470336], [89.75, -69.0], [89.53033008588991, -69.53033008588991], [89.17677669529664, -69.67677669529664], [89.03033008588991, -70.03033008588991], [88.5, -70.25], [88.25, -70.14644660940672], [88.0, -70.25], [87.75, -70.14644660940672], [87.67677669529664, -70.17677669529664], [87.53033008588991, -70.53033008588991], [87.0, -70.75], [86.75, -70.64644660940672], [86.5, -70.75], [86.0, -70.54289321881346], [85.5, -70.75], [85.25, -70.64644660940672], [85.0, -70.75], [84.75, -70.64644660940672], [84.5, -70.75], [84.25, -70.64644660940672], [84.0, -70.75], [83.75, -70.64644660940672], [83.5, -70.75], [83.25, -70.64644660940672], [83.0, -70.75], [82.75, -70.64644660940672], [82.67677669529664, -70.67677669529664], [82.53033008588991, -71.03033008588991], [82.0, -71.25], [81.46966991411009, -71.03033008588991], [81.25, -70.5], [81.46966991411009, -69.96966991411009], [81.82322330470336, -69.82322330470336]]]}, "2020-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[82.96966991411009, -70.03033008588991], [82.75, -69.5], [82.96966991411009, -68.96966991411009], [83.5, -68.75], [83.75, -68.85355339059328], [83.82322330470336, -68.82322330470336], [83.96966991411009, -68.46966991411009], [84.5, -68.25], [84.75, -68.35355339059328], [85.0, -68.25], [85.25, -68.35355339059328], [85.5, -68.25], [85.75, -68.35355339059328], [85.82322330470336, -68.32322330470336], [85.96966991411009, -67.96966991411009], [86.5, -67.75], [86.75, -67.85355339059328], [87.0, -67.75], [87.25, -67.85355339059328], [87.5, -67.75], [87.75, -67.85355339059328], [88.0, -67.75], [88.25, -67.85355339059328], [88.5, -67.75], [89.03033008588991, -67.96966991411009], [89.17677669529664, -68.32322330470336], [89.53033008588991, -68.46966991411009], [89.75, -69.0], [89.53033008588991, -69.53033008588991], [89.17677669529664, -69.67677669529664], [89.03033008588991, -70.03033008588991], [88.5, -70.25], [88.25, -70.14644660940672], [88.0, -70.25], [87.75, -70.14644660940672], [87.67677669529664, -70.17677669529664], [87.53033008588991, -70.53033008588991], [87.0, -70.75], [86.75, -70.64644660940672], [86.5, -70.75], [86.0, -70.54289321881346], [85.5, -70.75], [85.25, -70.64644660940672], [85.0, -70.75], [84.75, -70.64644660940672], [84.5, -70.75], [84.25, -70.64644660940672], [84.0, -70.75], [83.46966991411009, -70.53033008588991], [83.32322330470336, -70.17677669529664], [82.96966991411009, -70.03033008588991]]], [[[90.5, -68.75], [89.96966991411009, -68.53033008588991], [89.75, -68.0], [89.96966991411009, -67.46966991411009], [90.5, -67.25], [90.75, -67.35355339059328], [91.0, -67.25], [91.53033008588991, -67.46966991411009], [91.75, -68.0], [91.53033008588991, -68.53033008588991], [91.0, -68.75], [90.75, -68.64644660940672], [90.5, -68.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.4573368777084}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.105748786354669}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-13.35876435021271, -14.129066801308113, -15.088431348091547, -17.362514602994565]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-6.667600183046034, -6.041535896275775, -6.835493985039875, -14.822354529240215]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.700039816246796, 5.199623416554098, 4.452719293151677, 5.032376202557957]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.4573368777084, 5.521323398959595, 4.786598215042062, 6.06450050680013]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8709499473537505, 1.7101601510014417, 1.4887729447817337, 1.5482621675012083]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0540766825476844, 1.9666017728783503, 1.6876330676115219, 1.7886115053796674]}}