{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:35:36.131454", "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-Jun-24_to_2023-Jun-29_59.0_22.0"}, "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": 2023060000782}, "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 24 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 29 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 71643.60627656111}, "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": ["Oman"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 22.0}, "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": 59.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "59.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 56.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 59.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.5, 22.75], [60.03, 22.53], [60.25, 22.0], [60.03, 21.47], [59.5, 21.25], [58.97, 21.47], [58.75, 22.0], [58.97, 22.53], [59.5, 22.75]]]]}, "2023-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[58.82, 22.68], [58.97, 23.03], [59.5, 23.25], [60.03, 23.03], [60.25, 22.5], [60.15, 22.25], [60.25, 22.0], [60.03, 21.47], [59.68, 21.32], [59.53, 20.97], [59.0, 20.75], [58.75, 20.85], [58.5, 20.75], [57.97, 20.97], [57.75, 21.5], [57.97, 22.03], [58.32, 22.18], [58.47, 22.53], [58.82, 22.68]]]]}, "2023-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.85, 22.25], [57.75, 22.5], [57.93, 22.93], [57.5, 22.75], [56.97, 22.97], [56.75, 23.5], [56.97, 24.03], [57.5, 24.25], [58.03, 24.03], [58.25, 23.5], [58.07, 23.07], [58.5, 23.25], [58.75, 23.15], [59.0, 23.25], [59.25, 23.15], [59.5, 23.25], [60.03, 23.03], [60.25, 22.5], [60.15, 22.25], [60.25, 22.0], [60.03, 21.47], [59.68, 21.32], [59.53, 20.97], [59.0, 20.75], [58.75, 20.85], [58.5, 20.75], [57.97, 20.97], [57.75, 21.5], [57.85, 21.75], [57.75, 22.0], [57.85, 22.25]]]]}, "2023-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.35, 22.25], [56.25, 22.5], [56.47, 23.03], [56.82, 23.18], [56.85, 23.25], [56.75, 23.5], [56.97, 24.03], [57.5, 24.25], [58.03, 24.03], [58.18, 23.68], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.25, 23.15], [59.5, 23.25], [60.03, 23.03], [60.25, 22.5], [60.15, 22.25], [60.25, 22.0], [60.03, 21.47], [59.68, 21.32], [59.53, 20.97], [59.0, 20.75], [58.75, 20.85], [58.68, 20.82], [58.65, 20.75], [58.75, 20.5], [58.53, 19.97], [58.0, 19.75], [57.75, 19.85], [57.5, 19.75], [56.97, 19.97], [56.75, 20.5], [56.85, 20.75], [56.82, 20.82], [56.47, 20.97], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.35, 22.25]]]]}, "2023-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.35, 22.25], [56.25, 22.5], [56.47, 23.03], [56.82, 23.18], [56.85, 23.25], [56.75, 23.5], [56.97, 24.03], [57.5, 24.25], [58.03, 24.03], [58.18, 23.68], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.25, 23.15], [59.5, 23.25], [60.03, 23.03], [60.25, 22.5], [60.03, 21.97], [59.68, 21.82], [59.65, 21.75], [59.75, 21.5], [59.53, 20.97], [59.0, 20.75], [58.75, 20.85], [58.68, 20.82], [58.65, 20.75], [58.75, 20.5], [58.53, 19.97], [58.0, 19.75], [57.75, 19.85], [57.5, 19.75], [56.97, 19.97], [56.75, 20.5], [56.85, 20.75], [56.82, 20.82], [56.47, 20.97], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.35, 22.25]]]]}, "2023-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.35, 22.25], [56.25, 22.5], [56.47, 23.03], [56.82, 23.18], [56.97, 23.53], [57.5, 23.75], [57.75, 23.65], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.18, 23.18], [59.25, 23.15], [59.5, 23.25], [60.03, 23.03], [60.25, 22.5], [60.03, 21.97], [59.68, 21.82], [59.53, 21.47], [59.18, 21.32], [59.03, 20.97], [58.68, 20.82], [58.65, 20.75], [58.75, 20.5], [58.53, 19.97], [58.0, 19.75], [57.75, 19.85], [57.5, 19.75], [56.97, 19.97], [56.75, 20.5], [56.85, 20.75], [56.82, 20.82], [56.47, 20.97], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.35, 22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.508329581291434}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.4162139850658555}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.367821835130542, 29.763160419090127, 30.79575673901695, 31.60728137397706, 31.079287482602467, 31.338482049376978]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.367821835130542, 28.93252803493459, 28.893425371527087, 28.953595926959053, 28.43362067749706, 28.857765709929083]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m 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-2.1601298925841887]}}