{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:54.276057", "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": "2021-Mar-31_to_2021-Apr-02_46.5_27.0"}, "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": 2021030002751}, "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": "March 31 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 02 2021"}, "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": 234587.3531116484}, "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": ["Saudi Arabia"]}, "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": 27.0}, "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": 46.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "46.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 40.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 47.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.25, 25.0], [40.47, 25.53], [40.82, 25.68], [40.97, 26.03], [41.32, 26.18], [41.47, 26.53], [41.82, 26.68], [41.97, 27.03], [42.5, 27.25], [42.75, 27.15], [43.0, 27.25], [43.25, 27.15], [43.32, 27.18], [43.47, 27.53], [43.82, 27.68], [43.97, 28.03], [44.5, 28.25], [44.8, 28.13], [44.97, 28.53], [45.5, 28.75], [45.75, 28.65], [45.82, 28.68], [45.97, 29.03], [46.5, 29.25], [47.03, 29.03], [47.25, 28.5], [47.15, 28.25], [47.25, 28.0], [47.15, 27.75], [47.18, 27.68], [47.53, 27.53], [47.75, 27.0], [47.65, 26.75], [47.75, 26.5], [47.53, 25.97], [47.18, 25.82], [47.15, 25.75], [47.25, 25.5], [47.03, 24.97], [46.68, 24.82], [46.53, 24.47], [46.0, 24.25], [45.75, 24.35], [45.68, 24.32], [45.53, 23.97], [45.0, 23.75], [44.75, 23.85], [44.68, 23.82], [44.53, 23.47], [44.0, 23.25], [43.75, 23.35], [43.68, 23.32], [43.53, 22.97], [43.18, 22.82], [43.15, 22.75], [43.25, 22.5], [43.15, 22.25], [43.25, 22.0], [43.03, 21.47], [42.5, 21.25], [42.25, 21.35], [42.0, 21.25], [41.75, 21.35], [41.5, 21.25], [40.97, 21.47], [40.75, 22.0], [40.85, 22.25], [40.75, 22.5], [40.85, 22.75], [40.75, 23.0], [40.85, 23.25], [40.75, 23.5], [40.85, 23.75], [40.75, 24.0], [40.85, 24.25], [40.82, 24.32], [40.47, 24.47], [40.25, 25.0]]]]}, "2021-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.25, 25.0], [40.47, 25.53], [40.82, 25.68], [40.97, 26.03], [41.32, 26.18], [41.47, 26.53], [41.82, 26.68], [41.97, 27.03], [42.5, 27.25], [42.75, 27.15], [43.0, 27.25], [43.25, 27.15], [43.32, 27.18], [43.47, 27.53], [43.82, 27.68], [43.97, 28.03], [44.5, 28.25], [44.8, 28.13], [44.97, 28.53], [45.5, 28.75], [45.75, 28.65], [45.82, 28.68], [45.97, 29.03], [46.5, 29.25], [47.03, 29.03], [47.25, 28.5], [47.15, 28.25], [47.25, 28.0], [47.15, 27.75], [47.18, 27.68], [47.53, 27.53], [47.75, 27.0], [47.65, 26.75], [47.75, 26.5], [47.53, 25.97], [47.18, 25.82], [47.15, 25.75], [47.25, 25.5], [47.03, 24.97], [46.68, 24.82], [46.53, 24.47], [46.0, 24.25], [45.75, 24.35], [45.68, 24.32], [45.53, 23.97], [45.0, 23.75], [44.75, 23.85], [44.68, 23.82], [44.53, 23.47], [44.0, 23.25], [43.75, 23.35], [43.68, 23.32], [43.53, 22.97], [43.18, 22.82], [43.15, 22.75], [43.25, 22.5], [43.15, 22.25], [43.25, 22.0], [43.03, 21.47], [42.5, 21.25], [42.25, 21.35], [42.0, 21.25], [41.75, 21.35], [41.5, 21.25], [40.97, 21.47], [40.75, 22.0], [40.85, 22.25], [40.75, 22.5], [40.85, 22.75], [40.75, 23.0], [40.85, 23.25], [40.75, 23.5], [40.85, 23.75], [40.75, 24.0], [40.85, 24.25], [40.82, 24.32], [40.47, 24.47], [40.25, 25.0]]]]}, "2021-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.25, 25.0], [40.47, 25.53], [40.82, 25.68], [40.97, 26.03], [41.32, 26.18], [41.47, 26.53], [41.82, 26.68], [41.97, 27.03], [42.5, 27.25], [42.75, 27.15], [43.0, 27.25], [43.25, 27.15], [43.32, 27.18], [43.47, 27.53], [43.82, 27.68], [43.97, 28.03], [44.5, 28.25], [44.8, 28.13], [44.97, 28.53], [45.5, 28.75], [45.75, 28.65], [45.82, 28.68], [45.97, 29.03], [46.5, 29.25], [47.03, 29.03], [47.25, 28.5], [47.15, 28.25], [47.25, 28.0], [47.15, 27.75], [47.18, 27.68], [47.53, 27.53], [47.75, 27.0], [47.65, 26.75], [47.75, 26.5], [47.53, 25.97], [47.18, 25.82], [47.15, 25.75], [47.25, 25.5], [47.03, 24.97], [46.68, 24.82], [46.53, 24.47], [46.0, 24.25], [45.75, 24.35], [45.68, 24.32], [45.53, 23.97], [45.0, 23.75], [44.75, 23.85], [44.68, 23.82], [44.53, 23.47], [44.0, 23.25], [43.75, 23.35], [43.68, 23.32], [43.53, 22.97], [43.18, 22.82], [43.15, 22.75], [43.25, 22.5], [43.15, 22.25], [43.25, 22.0], [43.03, 21.47], [42.5, 21.25], [42.25, 21.35], [42.0, 21.25], [41.75, 21.35], [41.5, 21.25], [40.97, 21.47], [40.75, 22.0], [40.85, 22.25], [40.75, 22.5], [40.85, 22.75], [40.75, 23.0], [40.85, 23.25], [40.75, 23.5], [40.85, 23.75], [40.75, 24.0], [40.85, 24.25], [40.82, 24.32], [40.47, 24.47], [40.25, 25.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.780920790523112}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.826831264729045}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.394310057735197, 29.53047402011157, 30.09172990910531]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.773688762320774, 31.833181547000834, 32.113110506592136]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.124680779169062, 6.01835925287306, 6.337453762145013]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.697678074065891, 8.780920790523112, 8.753834638923877]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6024999007770566, 1.8819866827238005, 1.9915014784510343]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9441992057852022, 2.559339180483551, 2.55859592671265]}}