{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:26.013681", "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": "2024-Jun-12_to_2024-Jun-14_179.0_-70.5"}, "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": 2024060001646}, "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": "June 12 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 14 2024"}, "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": 75996.07485609192}, "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": ["Iselin Bank", "Ross Sea", "Southern 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": -70.5}, "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": 179.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "179.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 177.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 191.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -72.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -70.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-178.97, -70.47], [-178.82, -70.82], [-178.75, -70.85], [-178.5, -70.75], [-178.25, -70.85], [-178.18, -70.82], [-178.03, -70.47], [-177.5, -70.25], [-176.97, -70.47], [-176.82, -70.82], [-176.75, -70.85], [-176.5, -70.75], [-176.25, -70.85], [-176.0, -70.75], [-175.75, -70.85], [-175.5, -70.75], [-175.25, -70.85], [-175.0, -70.75], [-174.75, -70.85], [-174.5, -70.75], [-174.25, -70.85], [-174.0, -70.75], [-173.75, -70.85], [-173.5, -70.75], [-172.97, -70.97], [-172.82, -71.32], [-172.75, -71.35], [-172.5, -71.25], [-172.25, -71.35], [-172.0, -71.25], [-171.75, -71.35], [-171.5, -71.25], [-171.25, -71.35], [-171.0, -71.25], [-170.75, -71.35], [-170.5, -71.25], [-170.25, -71.35], [-170.0, -71.25], [-169.75, -71.35], [-169.5, -71.25], [-169.25, -71.35], [-169.0, -71.25], [-168.47, -71.47], [-168.25, -72.0], [-168.47, -72.53], [-169.0, -72.75], [-169.25, -72.65], [-169.5, -72.75], [-169.75, -72.65], [-170.0, -72.75], [-170.25, -72.65], [-170.5, -72.75], [-170.75, -72.65], [-170.82, -72.68], [-170.97, -73.03], [-171.5, -73.25], [-171.75, -73.15], [-172.0, -73.25], [-172.25, -73.15], [-172.5, -73.25], [-172.75, -73.15], [-173.0, -73.25], [-173.25, -73.15], [-173.5, -73.25], [-173.75, -73.15], [-174.0, -73.25], [-174.25, -73.15], [-174.5, -73.25], [-174.75, -73.15], [-175.0, -73.25], [-175.25, -73.15], [-175.5, -73.25], [-175.75, -73.15], [-176.0, -73.25], [-176.25, -73.15], [-176.5, -73.25], [-176.75, -73.15], [-177.0, -73.25], [-177.25, -73.15], [-177.5, -73.25], [-177.75, -73.15], [-178.0, -73.25], [-178.25, -73.15], [-178.5, -73.25], [-178.75, -73.15], [-179.0, -73.25], [-179.25, -73.15], [-179.5, -73.25], [-179.75, -73.15], [-180.0, -73.25], [-180.0, -70.25], [-179.75, -70.35], [-179.5, -70.25], [-178.97, -70.47]]], [[[176.47, -70.47], [177.0, -70.25], [177.25, -70.35], [177.5, -70.25], [177.75, -70.35], [178.0, -70.25], [178.25, -70.35], [178.32, -70.32], [178.47, -69.97], [179.0, -69.75], [179.53, -69.97], [179.68, -70.32], [179.75, -70.35], [180.0, -70.25], [180.0, -73.25], [179.75, -73.15], [179.5, -73.25], [179.25, -73.15], [179.0, -73.25], [178.47, -73.03], [178.32, -72.68], [178.25, -72.65], [178.0, -72.75], [177.75, -72.65], [177.5, -72.75], [177.25, -72.65], [177.0, -72.75], [176.47, -72.53], [176.25, -72.0], [176.35, -71.75], [176.25, -71.5], [176.35, -71.25], [176.25, -71.0], [176.47, -70.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica", "W.Antarctica"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[176.25, -71.5], [176.35, -71.25], [176.25, -71.0], [176.47, -70.47], [177.0, -70.25], [177.25, -70.35], [177.5, -70.25], [177.75, -70.35], [178.0, -70.25], [178.25, -70.35], [178.32, -70.32], [178.47, -69.97], [179.0, -69.75], [179.53, -69.97], [179.68, -70.32], [179.75, -70.35], [180.0, -70.25], [180.0, -73.25], [179.75, -73.15], [179.5, -73.25], [179.25, -73.15], [179.0, -73.25], [178.47, -73.03], [178.32, -72.68], [178.25, -72.65], [178.0, -72.75], [177.75, -72.65], [177.5, -72.75], [177.25, -72.65], [177.0, -72.75], [176.47, -72.53], [176.25, -72.0], [176.35, -71.75], [176.25, -71.5]]], [[[-180.0, -70.25], [-179.75, -70.35], [-179.5, -70.25], [-178.97, -70.47], [-178.82, -70.82], [-178.75, -70.85], [-178.5, -70.75], [-178.25, -70.85], [-178.18, -70.82], [-178.03, -70.47], [-177.5, -70.25], [-176.97, -70.47], [-176.82, -70.82], [-176.75, -70.85], [-176.5, -70.75], [-176.25, -70.85], [-176.0, -70.75], [-175.75, -70.85], [-175.5, -70.75], [-175.25, -70.85], [-175.0, -70.75], [-174.75, -70.85], [-174.5, -70.75], [-174.25, -70.85], [-174.0, -70.75], [-173.75, -70.85], [-173.5, -70.75], [-172.97, -70.97], [-172.82, -71.32], [-172.75, -71.35], [-172.5, -71.25], [-172.25, -71.35], [-172.0, -71.25], [-171.75, -71.35], [-171.5, -71.25], [-171.25, -71.35], [-171.0, -71.25], [-170.75, -71.35], [-170.5, -71.25], [-170.25, -71.35], [-170.0, -71.25], [-169.75, -71.35], [-169.5, -71.25], [-169.25, -71.35], [-169.0, -71.25], [-168.47, -71.47], [-168.25, -72.0], [-168.47, -72.53], [-169.0, -72.75], [-169.25, -72.65], [-169.5, -72.75], [-169.75, -72.65], [-170.0, -72.75], [-170.25, -72.65], [-170.5, -72.75], [-170.75, -72.65], [-170.82, -72.68], [-170.97, -73.03], [-171.5, -73.25], [-171.75, -73.15], [-172.0, -73.25], [-172.25, -73.15], [-172.5, -73.25], [-172.75, -73.15], [-173.0, -73.25], [-173.25, -73.15], [-173.5, -73.25], [-173.75, -73.15], [-174.0, -73.25], [-174.25, -73.15], [-174.5, -73.25], [-174.75, -73.15], [-175.0, -73.25], [-175.25, -73.15], [-175.5, -73.25], [-175.75, -73.15], [-176.0, -73.25], [-176.25, -73.15], [-176.5, -73.25], [-176.75, -73.15], [-177.0, -73.25], [-177.25, -73.15], [-177.5, -73.25], [-177.75, -73.15], [-178.0, -73.25], [-178.25, -73.15], [-178.5, -73.25], [-178.75, -73.15], [-179.0, -73.25], [-179.25, -73.15], [-179.5, -73.25], [-179.75, -73.15], [-180.0, -73.25], [-180.0, -70.25]]]]}, "2024-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[176.25, -71.5], [176.35, -71.25], [176.25, -71.0], [176.47, -70.47], [177.0, -70.25], [177.25, -70.35], [177.5, -70.25], [177.75, -70.35], [178.0, -70.25], [178.25, -70.35], [178.32, -70.32], [178.47, -69.97], [179.0, -69.75], [179.53, -69.97], [179.68, -70.32], [179.75, -70.35], [180.0, -70.25], [180.0, -73.25], [179.75, -73.15], [179.5, -73.25], [179.25, -73.15], [179.0, -73.25], [178.47, -73.03], [178.32, -72.68], [178.25, -72.65], [178.0, -72.75], [177.75, -72.65], [177.5, -72.75], [177.25, -72.65], [177.0, -72.75], [176.47, -72.53], [176.25, -72.0], [176.35, -71.75], [176.25, -71.5]]], [[[-180.0, -70.25], [-179.75, -70.35], [-179.5, -70.25], [-178.97, -70.47], [-178.82, -70.82], [-178.75, -70.85], [-178.5, -70.75], [-178.25, -70.85], [-178.18, -70.82], [-178.03, -70.47], [-177.5, -70.25], [-176.97, -70.47], [-176.82, -70.82], [-176.75, -70.85], [-176.5, -70.75], [-176.25, -70.85], [-176.0, -70.75], [-175.75, -70.85], [-175.5, -70.75], [-175.25, -70.85], [-175.0, -70.75], [-174.75, -70.85], [-174.5, -70.75], [-174.25, -70.85], [-174.0, -70.75], [-173.75, -70.85], [-173.5, -70.75], [-172.97, -70.97], [-172.82, -71.32], [-172.75, -71.35], [-172.5, -71.25], [-172.25, -71.35], [-172.0, -71.25], [-171.75, -71.35], [-171.5, -71.25], [-171.25, -71.35], [-171.0, -71.25], [-170.75, -71.35], [-170.5, -71.25], [-170.25, -71.35], [-170.0, -71.25], [-169.75, -71.35], [-169.5, -71.25], [-169.25, -71.35], [-169.0, -71.25], [-168.47, -71.47], [-168.25, -72.0], [-168.47, -72.53], [-169.0, -72.75], [-169.25, -72.65], [-169.5, -72.75], [-169.75, -72.65], [-170.0, -72.75], [-170.25, -72.65], [-170.5, -72.75], [-170.75, -72.65], [-170.82, -72.68], [-170.97, -73.03], [-171.5, -73.25], [-171.75, -73.15], [-172.0, -73.25], [-172.25, -73.15], [-172.5, -73.25], [-172.75, -73.15], [-173.0, -73.25], [-173.25, -73.15], [-173.5, -73.25], [-173.75, -73.15], [-174.0, -73.25], [-174.25, -73.15], [-174.5, -73.25], [-174.75, -73.15], [-175.0, -73.25], [-175.25, -73.15], [-175.5, -73.25], [-175.75, -73.15], [-176.0, -73.25], [-176.25, -73.15], [-176.5, -73.25], [-176.75, -73.15], [-177.0, -73.25], [-177.25, -73.15], [-177.5, -73.25], [-177.75, -73.15], [-178.0, -73.25], [-178.25, -73.15], [-178.5, -73.25], [-178.75, -73.15], [-179.0, -73.25], [-179.25, -73.15], [-179.5, -73.25], [-179.75, -73.15], [-180.0, -73.25], [-180.0, -70.25]]]]}, "2024-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[176.25, -71.5], [176.35, -71.25], [176.25, -71.0], [176.47, -70.47], [177.0, -70.25], [177.25, -70.35], [177.5, -70.25], [177.75, -70.35], [178.0, -70.25], [178.25, -70.35], [178.32, -70.32], [178.47, -69.97], [179.0, -69.75], [179.53, -69.97], [179.68, -70.32], [179.75, -70.35], [180.0, -70.25], [180.0, -73.25], [179.75, -73.15], [179.5, -73.25], [179.25, -73.15], [179.0, -73.25], [178.47, -73.03], [178.32, -72.68], [178.25, -72.65], [178.0, -72.75], [177.75, -72.65], [177.5, -72.75], [177.25, -72.65], [177.0, -72.75], [176.47, -72.53], [176.25, -72.0], [176.35, -71.75], [176.25, -71.5]]], [[[-180.0, -70.25], [-179.75, -70.35], [-179.5, -70.25], [-178.97, -70.47], [-178.82, -70.82], [-178.75, -70.85], [-178.5, -70.75], [-178.25, -70.85], [-178.18, -70.82], [-178.03, -70.47], [-177.5, -70.25], [-176.97, -70.47], [-176.82, -70.82], [-176.75, -70.85], [-176.5, -70.75], [-176.25, -70.85], [-176.0, -70.75], [-175.75, -70.85], [-175.5, -70.75], [-175.25, -70.85], [-175.0, -70.75], [-174.75, -70.85], [-174.5, -70.75], [-174.25, -70.85], [-174.0, -70.75], [-173.75, -70.85], [-173.5, -70.75], [-172.97, -70.97], [-172.82, -71.32], [-172.75, -71.35], [-172.5, -71.25], [-172.25, -71.35], [-172.0, -71.25], [-171.75, -71.35], [-171.5, -71.25], [-171.25, -71.35], [-171.0, -71.25], [-170.75, -71.35], [-170.5, -71.25], [-170.25, -71.35], [-170.0, -71.25], [-169.75, -71.35], [-169.5, -71.25], [-169.25, -71.35], [-169.0, -71.25], [-168.47, -71.47], [-168.25, -72.0], [-168.47, -72.53], [-169.0, -72.75], [-169.25, -72.65], [-169.5, -72.75], [-169.75, -72.65], [-170.0, -72.75], [-170.25, -72.65], [-170.5, -72.75], [-170.75, -72.65], [-170.82, -72.68], [-170.97, -73.03], [-171.5, -73.25], [-171.75, -73.15], [-172.0, -73.25], [-172.25, -73.15], [-172.5, -73.25], [-172.75, -73.15], [-173.0, -73.25], [-173.25, -73.15], [-173.5, -73.25], [-173.75, -73.15], [-174.0, -73.25], [-174.25, -73.15], [-174.5, -73.25], [-174.75, -73.15], [-175.0, -73.25], [-175.25, -73.15], [-175.5, -73.25], [-175.75, -73.15], [-176.0, -73.25], [-176.25, -73.15], [-176.5, -73.25], [-176.75, -73.15], [-177.0, -73.25], [-177.25, -73.15], [-177.5, -73.25], [-177.75, -73.15], [-178.0, -73.25], [-178.25, -73.15], [-178.5, -73.25], [-178.75, -73.15], [-179.0, -73.25], [-179.25, -73.15], [-179.5, -73.25], [-179.75, -73.15], [-180.0, -73.25], [-180.0, -70.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 14.928182233096948}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.730798146970775}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-9.815854919937351, -9.33466097110977, -12.136790044138934]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-5.017993119263792, -4.818451612276078, -8.96228793809587]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [10.478789052054916, 10.857746872385706, 7.855858516471703]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [14.928182233096948, 14.611071228692367, 10.314728848717579]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.1186702864078555, 2.1015824714417684, 1.51929760144696]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [3.325860091795087, 2.6089879201962036, 1.6444030432600536]}}