{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:28.332222", "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": "2022-Jun-29_to_2022-Jul-05_53.5_18.5"}, "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": 2022060003039}, "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 29 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 05 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 61344.08129704233}, "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", "Yemen"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": 18.5}, "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": 53.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "53.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 52.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 55.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[51.25, 19.0], [51.47, 19.53], [52.0, 19.75], [52.3, 19.63], [52.47, 20.03], [53.0, 20.25], [53.25, 20.15], [53.32, 20.18], [53.47, 20.53], [53.82, 20.68], [53.97, 21.03], [54.5, 21.25], [55.03, 21.03], [55.18, 20.68], [55.53, 20.53], [55.68, 20.18], [56.03, 20.03], [56.25, 19.5], [56.03, 18.97], [55.5, 18.75], [55.25, 18.85], [55.0, 18.75], [54.75, 18.85], [54.68, 18.82], [54.53, 18.47], [54.18, 18.32], [54.15, 18.25], [54.25, 18.0], [54.03, 17.47], [53.68, 17.32], [53.53, 16.97], [53.0, 16.75], [52.47, 16.97], [52.3, 17.38], [52.0, 17.25], [51.47, 17.47], [51.25, 18.0], [51.46, 18.5], [51.25, 19.0]]]]}}, "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": {"2022-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.25, 19.0], [52.47, 19.53], [52.82, 19.68], [52.97, 20.03], [53.32, 20.18], [53.47, 20.53], [53.82, 20.68], [53.97, 21.03], [54.5, 21.25], [55.03, 21.03], [55.18, 20.68], 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"MultiPolygon", "coordinates": [[[[51.47, 18.47], [51.25, 19.0], [51.47, 19.53], [52.0, 19.75], [52.3, 19.63], [52.47, 20.03], [53.0, 20.25], [53.25, 20.15], [53.32, 20.18], [53.47, 20.53], [53.82, 20.68], [53.97, 21.03], [54.5, 21.25], [55.03, 21.03], [55.18, 20.68], [55.53, 20.53], [55.68, 20.18], [56.03, 20.03], [56.25, 19.5], [56.03, 18.97], [55.5, 18.75], [55.25, 18.85], [55.0, 18.75], [54.75, 18.85], [54.68, 18.82], [54.53, 18.47], [54.18, 18.32], [54.15, 18.25], [54.25, 18.0], [54.03, 17.47], [53.68, 17.32], [53.53, 16.97], [53.0, 16.75], [52.47, 16.97], [52.25, 17.5], [52.35, 17.75], [52.32, 17.82], [51.97, 17.97], [51.82, 18.32], [51.47, 18.47]]]]}, "2022-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.47, 18.47], [51.25, 19.0], [51.47, 19.53], [52.0, 19.75], [52.3, 19.63], [52.47, 20.03], [53.0, 20.25], [53.53, 20.03], [53.75, 19.5], [53.63, 19.2], [54.03, 19.03], [54.25, 18.5], [54.15, 18.25], [54.25, 18.0], [54.03, 17.47], [53.68, 17.32], [53.53, 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"MultiPolygon", "coordinates": [[[[51.47, 18.53], [52.0, 18.75], [52.53, 18.53], [52.75, 18.0], [52.53, 17.47], [52.0, 17.25], [51.47, 17.47], [51.25, 18.0], [51.47, 18.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.4792601359822015}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.2220619496111733}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [38.24469321120415, 38.643278628484325, 38.21322425802623, 37.1574781129267, 37.22245357571467, 36.881352612463445, 36.50524697783163]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [38.830685564311636, 40.001410850890636, 39.97534910496995, 38.394832091665535, 37.942308520089625, 37.042598502692556, 36.50524697783163]}, "anom_evo_areamean": {"name": 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"value": [1.740341930630682, 2.4196709936180656, 2.157519639181555, 1.5625602705108064, 1.953865045644009, 1.5412228707979376, 1.3940986153674881]}}