{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:51.910400", "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-Oct-29_to_2023-Nov-01_322.0_77.0"}, "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": 2023100002183}, "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": "October 29 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 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": 59088.06203947408}, "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": ["Greenland"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Greenland/Iceland"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": 77.0}, "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": 322.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "322.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 313.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 326.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 74.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 77.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.03, 74.97], [-47.25, 75.5], [-47.03, 76.03], [-46.5, 76.25], [-46.25, 76.15], [-46.0, 76.25], [-45.75, 76.15], [-45.68, 76.18], [-45.53, 76.53], [-45.0, 76.75], [-44.75, 76.65], [-44.5, 76.75], [-44.25, 76.65], [-44.0, 76.75], [-43.75, 76.65], [-43.68, 76.68], [-43.53, 77.03], [-43.0, 77.25], [-42.75, 77.15], [-42.5, 77.25], [-42.25, 77.15], [-42.0, 77.25], [-41.75, 77.15], [-41.5, 77.25], [-41.25, 77.15], [-41.0, 77.25], [-40.75, 77.15], [-40.5, 77.25], [-40.25, 77.15], [-40.0, 77.25], [-39.75, 77.15], [-39.5, 77.25], [-39.25, 77.15], [-39.0, 77.25], [-38.75, 77.15], [-38.68, 77.18], [-38.53, 77.53], [-38.0, 77.75], [-37.75, 77.65], [-37.5, 77.75], [-37.25, 77.65], [-37.0, 77.75], [-36.75, 77.65], [-36.5, 77.75], [-36.25, 77.65], [-36.0, 77.75], [-35.75, 77.65], [-35.5, 77.75], [-35.25, 77.65], [-35.0, 77.75], [-34.75, 77.65], [-34.5, 77.75], [-34.25, 77.65], [-34.0, 77.75], [-33.47, 77.53], [-33.25, 77.0], [-33.35, 76.75], [-33.25, 76.5], [-33.35, 76.25], [-33.25, 76.0], [-33.47, 75.47], [-34.0, 75.25], [-34.25, 75.35], [-34.5, 75.25], [-34.75, 75.35], [-35.0, 75.25], [-35.25, 75.35], [-35.5, 75.25], [-35.75, 75.35], [-35.82, 75.32], [-35.97, 74.97], [-36.5, 74.75], [-36.75, 74.85], [-37.0, 74.75], [-37.25, 74.85], [-37.5, 74.75], [-37.75, 74.85], [-38.0, 74.75], [-38.25, 74.85], [-38.5, 74.75], [-38.75, 74.85], [-39.0, 74.75], [-39.25, 74.85], [-39.5, 74.75], [-39.75, 74.85], [-40.0, 74.75], [-40.25, 74.85], [-40.5, 74.75], [-40.75, 74.85], [-41.0, 74.75], [-41.25, 74.85], [-41.5, 74.75], [-41.75, 74.85], [-42.0, 74.75], [-42.25, 74.85], [-42.5, 74.75], [-42.75, 74.85], [-43.0, 74.75], [-43.25, 74.85], [-43.32, 74.82], [-43.47, 74.47], [-44.0, 74.25], [-44.53, 74.47], [-44.68, 74.82], [-44.75, 74.85], [-45.0, 74.75], [-45.25, 74.85], [-45.5, 74.75], [-45.75, 74.85], [-46.0, 74.75], [-46.25, 74.85], [-46.5, 74.75], [-47.03, 74.97]]]]}, "2023-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.03, 74.97], [-47.25, 75.5], [-47.03, 76.03], [-46.5, 76.25], [-46.25, 76.15], [-46.0, 76.25], [-45.75, 76.15], [-45.68, 76.18], [-45.53, 76.53], [-45.0, 76.75], [-44.75, 76.65], [-44.5, 76.75], [-44.25, 76.65], [-44.0, 76.75], [-43.75, 76.65], [-43.68, 76.68], [-43.53, 77.03], [-43.0, 77.25], [-42.75, 77.15], [-42.68, 77.18], [-42.53, 77.53], [-42.0, 77.75], [-41.75, 77.65], [-41.5, 77.75], [-41.25, 77.65], [-41.0, 77.75], [-40.75, 77.65], [-40.5, 77.75], [-40.0, 77.54], [-39.5, 77.75], [-39.25, 77.65], [-39.0, 77.75], [-38.75, 77.65], [-38.5, 77.75], [-38.25, 77.65], [-38.0, 77.75], [-37.75, 77.65], [-37.5, 77.75], [-37.25, 77.65], [-37.0, 77.75], [-36.75, 77.65], [-36.5, 77.75], [-36.25, 77.65], [-36.0, 77.75], [-35.75, 77.65], [-35.5, 77.75], [-35.25, 77.65], [-35.0, 77.75], [-34.75, 77.65], [-34.5, 77.75], [-34.25, 77.65], [-34.0, 77.75], [-33.47, 77.53], [-33.25, 77.0], [-33.35, 76.75], [-33.25, 76.5], [-33.35, 76.25], [-33.25, 76.0], [-33.47, 75.47], [-34.0, 75.25], [-34.25, 75.35], [-34.5, 75.25], [-34.75, 75.35], [-35.0, 75.25], [-35.25, 75.35], [-35.5, 75.25], [-35.75, 75.35], [-35.82, 75.32], [-35.97, 74.97], [-36.5, 74.75], [-36.75, 74.85], [-37.0, 74.75], [-37.25, 74.85], [-37.5, 74.75], [-37.75, 74.85], [-38.0, 74.75], [-38.25, 74.85], [-38.5, 74.75], [-38.75, 74.85], [-39.0, 74.75], [-39.25, 74.85], [-39.5, 74.75], [-39.75, 74.85], [-40.0, 74.75], [-40.25, 74.85], [-40.5, 74.75], [-40.75, 74.85], [-41.0, 74.75], [-41.25, 74.85], [-41.5, 74.75], [-41.75, 74.85], [-42.0, 74.75], [-42.25, 74.85], [-42.5, 74.75], [-42.75, 74.85], [-43.0, 74.75], [-43.25, 74.85], [-43.32, 74.82], [-43.47, 74.47], [-44.0, 74.25], [-44.53, 74.47], [-44.68, 74.82], [-44.75, 74.85], [-45.0, 74.75], [-45.25, 74.85], [-45.5, 74.75], [-45.75, 74.85], [-46.0, 74.75], [-46.25, 74.85], [-46.5, 74.75], [-47.03, 74.97]]]]}, "2023-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.03, 74.97], [-47.25, 75.5], [-47.03, 76.03], [-46.5, 76.25], [-46.25, 76.15], [-46.0, 76.25], [-45.75, 76.15], [-45.68, 76.18], [-45.53, 76.53], [-45.0, 76.75], [-44.75, 76.65], [-44.5, 76.75], [-44.25, 76.65], [-44.0, 76.75], [-43.75, 76.65], [-43.68, 76.68], [-43.53, 77.03], [-43.0, 77.25], [-42.75, 77.15], [-42.68, 77.18], [-42.53, 77.53], [-42.0, 77.75], [-41.75, 77.65], [-41.5, 77.75], [-41.25, 77.65], [-41.0, 77.75], [-40.75, 77.65], [-40.5, 77.75], [-40.0, 77.54], [-39.5, 77.75], [-39.25, 77.65], [-39.0, 77.75], [-38.75, 77.65], [-38.5, 77.75], [-38.25, 77.65], [-38.0, 77.75], [-37.75, 77.65], [-37.5, 77.75], [-37.25, 77.65], [-37.0, 77.75], [-36.75, 77.65], [-36.5, 77.75], [-36.25, 77.65], [-36.0, 77.75], [-35.75, 77.65], [-35.5, 77.75], [-35.25, 77.65], [-35.0, 77.75], [-34.75, 77.65], [-34.5, 77.75], [-34.25, 77.65], [-34.0, 77.75], [-33.47, 77.53], [-33.25, 77.0], [-33.35, 76.75], [-33.25, 76.5], [-33.35, 76.25], [-33.25, 76.0], [-33.47, 75.47], [-34.0, 75.25], [-34.25, 75.35], [-34.5, 75.25], [-34.75, 75.35], [-35.0, 75.25], [-35.25, 75.35], [-35.5, 75.25], [-35.75, 75.35], [-35.82, 75.32], [-35.97, 74.97], [-36.5, 74.75], [-36.75, 74.85], [-37.0, 74.75], [-37.25, 74.85], [-37.5, 74.75], [-37.75, 74.85], [-38.0, 74.75], [-38.25, 74.85], [-38.5, 74.75], [-38.75, 74.85], [-39.0, 74.75], [-39.25, 74.85], [-39.5, 74.75], [-39.75, 74.85], [-40.0, 74.75], [-40.25, 74.85], [-40.5, 74.75], [-40.75, 74.85], [-41.0, 74.75], [-41.25, 74.85], [-41.5, 74.75], [-41.75, 74.85], [-42.0, 74.75], [-42.25, 74.85], [-42.5, 74.75], [-42.75, 74.85], [-43.0, 74.75], [-43.25, 74.85], [-43.32, 74.82], [-43.47, 74.47], [-44.0, 74.25], [-44.53, 74.47], [-44.68, 74.82], [-44.75, 74.85], [-45.0, 74.75], [-45.25, 74.85], [-45.5, 74.75], [-45.75, 74.85], [-46.0, 74.75], [-46.25, 74.85], [-46.5, 74.75], [-47.03, 74.97]]]]}, "2023-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-42.53, 76.47], [-42.75, 77.0], [-42.53, 77.53], [-42.0, 77.75], [-41.75, 77.65], [-41.5, 77.75], [-41.25, 77.65], [-41.0, 77.75], [-40.75, 77.65], [-40.5, 77.75], [-40.0, 77.54], [-39.5, 77.75], [-39.25, 77.65], [-39.0, 77.75], [-38.75, 77.65], [-38.5, 77.75], [-38.25, 77.65], [-38.0, 77.75], [-37.47, 77.53], [-37.25, 77.0], [-37.47, 76.47], [-38.0, 76.25], [-38.25, 76.35], [-38.5, 76.25], [-38.75, 76.35], [-39.0, 76.25], [-39.25, 76.35], [-39.5, 76.25], [-40.0, 76.46], [-40.5, 76.25], [-40.75, 76.35], [-41.0, 76.25], [-41.25, 76.35], [-41.5, 76.25], [-41.75, 76.35], [-42.0, 76.25], [-42.53, 76.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 14.608196652648502}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 11.054915023375393}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-23.690534772023483, -20.17500372743774, -23.379932334852924, -26.138215149837208]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-19.793226329039413, -18.662354803788475, -21.940311039875127, -26.03507161071977]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.627652931483924, 13.405481078752425, 10.300559047244382, 8.116580819424883]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.671630476185953, 14.608196652648502, 11.606591704283744, 8.351376987844759]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.522446537286785, 2.1481900414022683, 1.6588314025750635, 1.3137870348452454]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8891929730836836, 2.3054099043482026, 1.8621109084322978, 1.32199958274394]}}