{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:50:38.856962", "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-Jan-08_to_2023-Jan-12_57.0_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": 2023010002009}, "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": "January 08 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 12 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 60171.14703534101}, "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", "Saudi Arabia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": 57.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "57.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 55.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 58.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[57.25, 23.15], [57.5, 23.25], [57.75, 23.15], [58.0, 23.25], [58.53, 23.03], [58.75, 22.5], [58.65, 22.25], [58.75, 22.0], [58.53, 21.47], [58.18, 21.32], [58.15, 21.25], [58.25, 21.0], [58.15, 20.75], [58.25, 20.5], [58.03, 19.97], [57.5, 19.75], [56.97, 19.97], [56.82, 20.32], [56.75, 20.35], [56.5, 20.25], [55.97, 20.47], [55.75, 21.0], [55.85, 21.25], [55.75, 21.5], [55.85, 21.75], [55.82, 21.82], [55.75, 21.85], [55.5, 21.75], [55.25, 21.85], [55.0, 21.75], [54.47, 21.97], [54.25, 22.5], [54.47, 23.03], [54.82, 23.18], [54.97, 23.53], [55.5, 23.75], [55.75, 23.65], [56.0, 23.75], [56.25, 23.65], [56.5, 23.75], [57.03, 23.53], [57.18, 23.18], [57.25, 23.15]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.97, 23.53], [55.5, 23.75], [55.75, 23.65], [56.0, 23.75], [56.25, 23.65], [56.5, 23.75], [57.03, 23.53], [57.18, 23.18], [57.53, 23.03], [57.75, 22.5], [57.65, 22.25], [57.68, 22.18], [58.03, 22.03], [58.25, 21.5], [58.03, 20.97], [57.5, 20.75], [57.25, 20.85], [57.0, 20.75], [56.75, 20.85], [56.5, 20.75], [55.97, 20.97], [55.75, 21.5], [55.85, 21.75], [55.82, 21.82], [55.75, 21.85], [55.5, 21.75], [55.25, 21.85], [55.0, 21.75], [54.47, 21.97], [54.25, 22.5], [54.47, 23.03], [54.82, 23.18], [54.97, 23.53]]]]}, "2023-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.97, 23.53], [55.5, 23.75], [55.75, 23.65], [56.0, 23.75], [56.25, 23.65], [56.5, 23.75], [57.03, 23.53], [57.18, 23.18], [57.25, 23.15], [57.5, 23.25], [57.75, 23.15], [58.0, 23.25], [58.53, 23.03], [58.75, 22.5], [58.65, 22.25], [58.75, 22.0], [58.53, 21.47], [58.18, 21.32], [58.03, 20.97], [57.68, 20.82], [57.53, 20.47], [57.0, 20.25], [56.75, 20.35], [56.5, 20.25], [55.97, 20.47], [55.75, 21.0], [55.85, 21.25], [55.75, 21.5], [55.85, 21.75], [55.82, 21.82], [55.75, 21.85], [55.5, 21.75], [55.25, 21.85], [55.0, 21.75], [54.47, 21.97], [54.25, 22.5], [54.47, 23.03], [54.82, 23.18], [54.97, 23.53]]]]}, "2023-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.97, 23.53], [55.5, 23.75], [55.75, 23.65], [56.0, 23.75], [56.25, 23.65], [56.5, 23.75], [57.03, 23.53], [57.18, 23.18], [57.25, 23.15], [57.5, 23.25], [57.75, 23.15], [58.0, 23.25], [58.53, 23.03], [58.75, 22.5], [58.65, 22.25], [58.75, 22.0], [58.53, 21.47], [58.18, 21.32], [58.15, 21.25], [58.25, 21.0], [58.15, 20.75], [58.25, 20.5], [58.03, 19.97], [57.5, 19.75], [56.97, 19.97], [56.82, 20.32], [56.75, 20.35], [56.5, 20.25], [55.97, 20.47], [55.75, 21.0], [55.85, 21.25], [55.75, 21.5], [55.85, 21.75], [55.82, 21.82], [55.75, 21.85], [55.5, 21.75], [55.25, 21.85], [55.0, 21.75], [54.47, 21.97], [54.25, 22.5], [54.47, 23.03], [54.82, 23.18], [54.97, 23.53]]]]}, "2023-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.75, 21.5], [55.85, 21.75], [55.75, 22.0], [55.85, 22.25], [55.75, 22.5], [55.97, 23.03], [56.5, 23.25], [56.75, 23.15], [57.0, 23.25], [57.25, 23.15], [57.5, 23.25], [57.75, 23.15], [58.0, 23.25], [58.53, 23.03], [58.75, 22.5], [58.65, 22.25], [58.75, 22.0], [58.53, 21.47], [58.18, 21.32], [58.15, 21.25], [58.25, 21.0], [58.15, 20.75], [58.25, 20.5], [58.03, 19.97], [57.5, 19.75], [56.97, 19.97], [56.82, 20.32], [56.75, 20.35], [56.5, 20.25], [55.97, 20.47], [55.75, 21.0], [55.85, 21.25], [55.75, 21.5]]]]}, "2023-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.25, 22.0], [56.47, 22.53], [56.82, 22.68], [56.97, 23.03], [57.5, 23.25], [58.03, 23.03], [58.18, 22.68], [58.53, 22.53], [58.75, 22.0], [58.53, 21.47], [58.18, 21.32], [58.15, 21.25], [58.25, 21.0], [58.15, 20.75], [58.25, 20.5], [58.03, 19.97], [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]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.101385923879036}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.618765579460831}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.430838276256225, 22.866535275687852, 23.12695760458081, 23.289277125669287, 22.693265191624107]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.88880188426191, 23.40951454295282, 23.718838124526485, 24.225755167035857, 23.144236340125815]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.2855494555018763, 2.620007536680981, 2.8684282007101736, 2.8477264577892165, 2.0726261048510324]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.704967150667244, 3.467208280876207, 4.101385923879036, 3.6746943393297897, 2.353678458091565]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2636296413884653, 1.479071154695284, 1.6695793877403269, 1.7628759414817408, 1.259904198584319]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.408320791355495, 1.7460015317911923, 1.973568099882592, 2.2914072209565237, 1.4165604764811552]}}