{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:56:26.414218", "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": "2023-Nov-28_to_2023-Dec-01_153.5_-80.0"}, "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": 2023110002117}, "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": "November 28 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 01 2023"}, "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": 93734.37362877905}, "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": -80.0}, "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": 153.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "153.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 147.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 158.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -81.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -76.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[147.82, -76.32], [147.85, -76.25], [147.75, -76.0], [147.97, -75.47], [148.5, -75.25], [148.75, -75.35], [149.0, -75.25], [149.25, -75.35], [149.5, -75.25], [149.75, -75.35], [150.0, -75.25], [150.53, -75.47], [150.68, -75.82], [150.75, -75.85], [151.0, -75.75], [151.25, -75.85], [151.5, -75.75], [151.75, -75.85], [152.0, -75.75], [152.25, -75.85], [152.5, -75.75], [152.75, -75.85], [153.0, -75.75], [153.53, -75.97], [153.68, -76.32], [154.03, -76.47], [154.18, -76.82], [154.25, -76.85], [154.5, -76.75], [154.75, -76.85], [155.0, -76.75], [155.53, -76.97], [155.68, -77.32], [155.75, -77.35], [156.0, -77.25], [156.25, -77.35], [156.5, -77.25], [156.75, -77.35], [157.0, -77.25], [157.25, -77.35], [157.5, -77.25], [157.75, -77.35], [158.0, -77.25], [158.25, -77.35], [158.5, -77.25], [159.03, -77.47], [159.25, -78.0], [159.04, -78.5], [159.25, -79.0], [159.03, -79.53], [158.5, -79.75], [157.97, -79.53], [157.82, -79.18], [157.75, -79.15], [157.68, -79.18], [157.53, -79.53], [157.0, -79.75], [156.75, -79.65], [156.68, -79.68], [156.53, -80.03], [156.18, -80.18], [156.15, -80.25], [156.25, -80.5], [156.03, -81.03], [155.5, -81.25], [155.07, -81.07], [155.25, -81.5], [155.03, -82.03], [154.5, -82.25], [154.25, -82.15], [154.0, -82.25], [153.75, -82.15], [153.5, -82.25], [153.25, -82.15], [153.0, -82.25], [152.47, -82.03], [152.32, -81.68], [152.25, -81.65], [152.0, -81.75], [151.75, -81.65], [151.5, -81.75], [150.97, -81.53], [150.82, -81.18], [150.47, -81.03], [150.32, -80.68], [149.97, -80.53], [149.82, -80.18], [149.75, -80.15], [149.5, -80.25], [149.25, -80.15], [149.0, -80.25], [148.75, -80.15], [148.5, -80.25], [148.25, -80.15], [148.0, -80.25], [147.75, -80.15], [147.5, -80.25], [146.97, -80.03], [146.75, -79.5], [146.97, -78.97], [147.32, -78.82], [147.46, -78.5], [147.32, -78.18], [147.25, -78.15], [147.0, -78.25], [146.47, -78.03], [146.25, -77.5], [146.47, -76.97], [146.82, -76.82], [146.97, -76.47], [147.5, -76.25], [147.75, -76.35], [147.82, -76.32]]]]}}, "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": {"2023-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.97, -76.47], [147.5, -76.25], [147.75, -76.35], [147.82, -76.32], [147.85, -76.25], [147.75, -76.0], [147.97, -75.47], [148.5, -75.25], [148.75, -75.35], [149.0, -75.25], [149.25, -75.35], [149.5, -75.25], [149.75, -75.35], [150.0, -75.25], [150.53, -75.47], [150.68, -75.82], [150.75, -75.85], [151.0, -75.75], [151.25, -75.85], [151.5, -75.75], [151.75, -75.85], [152.0, -75.75], [152.25, -75.85], [152.5, -75.75], [152.75, -75.85], [153.0, -75.75], [153.53, -75.97], [153.68, -76.32], [154.03, -76.47], [154.18, -76.82], [154.25, -76.85], [154.5, -76.75], [154.75, -76.85], [155.0, -76.75], [155.53, -76.97], [155.68, -77.32], [155.75, -77.35], [156.0, -77.25], [156.25, -77.35], [156.5, -77.25], [156.75, -77.35], [157.0, -77.25], [157.25, -77.35], [157.5, -77.25], [157.75, -77.35], [158.0, -77.25], [158.25, -77.35], [158.5, -77.25], [159.03, -77.47], [159.25, -78.0], [159.04, -78.5], [159.25, -79.0], [159.03, -79.53], [158.5, -79.75], [157.97, -79.53], [157.82, -79.18], [157.75, -79.15], [157.68, -79.18], [157.53, -79.53], [157.0, -79.75], [156.75, -79.65], [156.68, -79.68], [156.53, -80.03], [156.18, -80.18], [156.15, -80.25], [156.25, -80.5], [156.03, -81.03], [155.5, -81.25], [155.07, -81.07], [155.25, -81.5], [155.03, -82.03], [154.5, -82.25], [154.25, -82.15], [154.0, -82.25], [153.75, -82.15], [153.5, -82.25], [153.25, -82.15], [153.0, -82.25], [152.47, -82.03], [152.32, -81.68], [152.25, -81.65], [152.0, -81.75], [151.75, -81.65], [151.5, -81.75], [150.97, -81.53], [150.82, -81.18], [150.47, -81.03], [150.32, -80.68], [149.97, -80.53], [149.82, -80.18], [149.75, -80.15], [149.5, -80.25], [149.25, -80.15], [149.0, -80.25], [148.75, -80.15], [148.5, -80.25], [148.25, -80.15], [148.0, -80.25], [147.75, -80.15], [147.5, -80.25], [146.97, -80.03], [146.75, -79.5], [146.97, -78.97], [147.32, -78.82], [147.46, -78.5], [147.32, -78.18], [147.25, -78.15], [147.0, -78.25], [146.47, -78.03], [146.25, -77.5], [146.47, -76.97], [146.82, -76.82], [146.97, -76.47]]]]}, "2023-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.97, -76.47], [147.5, -76.25], [147.75, -76.35], [147.82, -76.32], [147.85, -76.25], [147.75, -76.0], [147.97, -75.47], [148.5, -75.25], [148.75, -75.35], [149.0, -75.25], [149.25, -75.35], [149.5, -75.25], [149.75, -75.35], [150.0, -75.25], [150.53, -75.47], [150.68, -75.82], [150.75, -75.85], [151.0, -75.75], [151.25, -75.85], [151.5, -75.75], [151.75, -75.85], [152.0, -75.75], [152.25, -75.85], [152.5, -75.75], [152.75, -75.85], [153.0, -75.75], [153.53, -75.97], [153.68, -76.32], [154.03, -76.47], [154.18, -76.82], [154.25, -76.85], [154.5, -76.75], [154.75, -76.85], [155.0, -76.75], [155.53, -76.97], [155.68, -77.32], [155.75, -77.35], [156.0, -77.25], [156.25, -77.35], [156.5, -77.25], [156.75, -77.35], [157.0, -77.25], [157.25, -77.35], [157.5, -77.25], [157.75, -77.35], [158.0, -77.25], [158.25, -77.35], [158.5, -77.25], [159.03, -77.47], [159.25, -78.0], [159.04, -78.5], [159.25, -79.0], [159.03, -79.53], [158.5, -79.75], [157.97, -79.53], [157.82, -79.18], [157.75, -79.15], [157.68, -79.18], [157.53, -79.53], [157.0, -79.75], [156.75, -79.65], [156.68, -79.68], [156.53, -80.03], [156.18, -80.18], [156.15, -80.25], [156.25, -80.5], [156.03, -81.03], [155.5, -81.25], [155.07, -81.07], [155.25, -81.5], [155.03, -82.03], [154.5, -82.25], [154.25, -82.15], [154.0, -82.25], [153.75, -82.15], [153.5, -82.25], [153.25, -82.15], [153.0, -82.25], [152.47, -82.03], [152.32, -81.68], [152.25, -81.65], [152.0, -81.75], [151.75, -81.65], [151.5, -81.75], [150.97, -81.53], [150.82, -81.18], [150.47, -81.03], [150.32, -80.68], [149.97, -80.53], [149.82, -80.18], [149.75, -80.15], [149.5, -80.25], [149.25, -80.15], [149.0, -80.25], [148.75, -80.15], [148.5, -80.25], [148.25, -80.15], [148.0, -80.25], [147.75, -80.15], [147.5, -80.25], [146.97, -80.03], [146.75, -79.5], [146.97, -78.97], [147.32, -78.82], [147.46, -78.5], [147.32, -78.18], [147.25, -78.15], [147.0, -78.25], [146.47, -78.03], [146.25, -77.5], [146.47, -76.97], [146.82, -76.82], [146.97, -76.47]]]]}, "2023-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.97, -76.47], [147.5, -76.25], [147.75, -76.35], [147.82, -76.32], [147.85, -76.25], [147.75, -76.0], [147.97, -75.47], [148.5, -75.25], [148.75, -75.35], [149.0, -75.25], [149.25, -75.35], [149.5, -75.25], [149.75, -75.35], [150.0, -75.25], [150.53, -75.47], [150.68, -75.82], [150.75, -75.85], [151.0, -75.75], [151.25, -75.85], [151.5, -75.75], [151.75, -75.85], [152.0, -75.75], [152.25, -75.85], [152.5, -75.75], [152.75, -75.85], [153.0, -75.75], [153.53, -75.97], [153.68, -76.32], [154.03, -76.47], [154.18, -76.82], [154.25, -76.85], [154.5, -76.75], [154.75, -76.85], [155.0, -76.75], [155.53, -76.97], [155.68, -77.32], [155.75, -77.35], [156.0, -77.25], [156.25, -77.35], [156.5, -77.25], [156.75, -77.35], [157.0, -77.25], [157.25, -77.35], [157.5, -77.25], [157.75, -77.35], [158.0, -77.25], [158.25, -77.35], [158.5, -77.25], [159.03, -77.47], [159.25, -78.0], [159.04, -78.5], [159.25, -79.0], [159.03, -79.53], [158.5, -79.75], [157.97, -79.53], [157.82, -79.18], [157.75, -79.15], [157.68, -79.18], [157.53, -79.53], [157.0, -79.75], [156.75, -79.65], [156.68, -79.68], [156.53, -80.03], [156.18, -80.18], [156.15, -80.25], [156.25, -80.5], [156.03, -81.03], [155.5, -81.25], [155.07, -81.07], [155.25, -81.5], [155.03, -82.03], [154.5, -82.25], [154.25, -82.15], [154.0, -82.25], [153.75, -82.15], [153.5, -82.25], [153.25, -82.15], [153.0, -82.25], [152.47, -82.03], [152.32, -81.68], [152.25, -81.65], [152.0, -81.75], [151.75, -81.65], [151.5, -81.75], [150.97, -81.53], [150.82, -81.18], [150.47, -81.03], [150.32, -80.68], [149.97, -80.53], [149.82, -80.18], [149.75, -80.15], [149.5, -80.25], [149.25, -80.15], [149.0, -80.25], [148.75, -80.15], [148.5, -80.25], [148.25, -80.15], [148.0, -80.25], [147.75, -80.15], [147.5, -80.25], [146.97, -80.03], [146.75, -79.5], [146.97, -78.97], [147.32, -78.82], [147.46, -78.5], [147.32, -78.18], [147.25, -78.15], [147.0, -78.25], [146.47, -78.03], [146.25, -77.5], [146.47, -76.97], [146.82, -76.82], [146.97, -76.47]]]]}, "2023-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[152.25, -80.0], [152.47, -79.47], [153.0, -79.25], [153.25, -79.35], [153.5, -79.25], [153.75, -79.35], [154.0, -79.25], [154.25, -79.35], [154.5, -79.25], [155.03, -79.47], [155.25, -80.0], [155.03, -80.53], [154.5, -80.75], [154.25, -80.65], [154.13, -80.7], [154.25, -81.0], [154.03, -81.53], [153.5, -81.75], [153.25, -81.65], [153.0, -81.75], [152.47, -81.53], [152.25, -81.0], [152.46, -80.5], [152.25, -80.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.440142452253383}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.280728880997607}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-23.128519397944984, -21.719348823215597, -22.988190709413004, -18.83736051264711]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-14.585015273780868, -14.001804041378705, -14.49949551284783, -16.247207745689366]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.9963679082889594, 5.20008252737691, 3.6854898413624517, 3.2670112130925353]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.45875669752499, 6.440142452253383, 4.32549820890398, 3.676690415483307]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4086475057709718, 1.839173331827422, 1.3414125443554734, 1.3139817177281043]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5976197827175174, 2.158214411008238, 1.5524453019346012, 1.4536371629955969]}}