{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:50:41.897322", "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-14_to_2023-Jan-17_52.0_28.0"}, "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": 2023010002306}, "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 14 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 17 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": 74758.10304906155}, "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": ["Iran, Islamic Republic of", "Qatar", "Saudi Arabia"]}, "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": 28.0}, "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": 52.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "52.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 51.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 54.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[50.82, 26.18], [50.85, 26.25], [50.82, 26.32], [50.47, 26.47], [50.25, 27.0], [50.47, 27.53], [50.88, 27.7], [50.75, 28.0], [50.97, 28.53], [51.5, 28.75], [51.75, 28.65], [52.0, 28.75], [52.25, 28.65], [52.5, 28.75], [52.75, 28.65], [53.0, 28.75], [53.5, 28.54], [54.0, 28.75], [54.53, 28.53], [54.75, 28.0], [54.53, 27.47], [54.18, 27.32], [54.15, 27.25], [54.25, 27.0], [54.03, 26.47], [53.5, 26.25], [53.2, 26.38], [53.15, 26.25], [53.25, 26.0], [53.15, 25.75], [53.25, 25.5], [53.15, 25.25], [53.25, 25.0], [53.03, 24.47], [52.68, 24.32], [52.53, 23.97], [52.18, 23.82], [52.03, 23.47], [51.5, 23.25], [50.97, 23.47], [50.75, 24.0], [50.85, 24.25], [50.75, 24.5], [50.85, 24.75], [50.82, 24.82], [50.47, 24.97], [50.25, 25.5], [50.47, 26.03], [50.82, 26.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.Asia", "Arabian-Peninsula"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-01-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.47, 26.47], [50.25, 27.0], [50.47, 27.53], [51.0, 27.75], [51.43, 27.57], [51.25, 28.0], [51.47, 28.53], [52.0, 28.75], [52.25, 28.65], [52.5, 28.75], [53.03, 28.53], [53.25, 28.0], [53.03, 27.47], [52.5, 27.25], [52.25, 27.35], [52.0, 27.25], [51.57, 27.43], [51.68, 27.18], [52.03, 27.03], [52.18, 26.68], [52.53, 26.53], [52.75, 26.0], [52.65, 25.75], [52.75, 25.5], [52.53, 24.97], [52.0, 24.75], [51.47, 24.97], [51.25, 25.5], [51.35, 25.75], [51.32, 25.82], [50.97, 25.97], [50.82, 26.32], [50.47, 26.47]]]]}, "2023-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.47, 24.97], [50.25, 25.5], [50.47, 26.03], [50.82, 26.18], [50.85, 26.25], [50.82, 26.32], [50.47, 26.47], [50.25, 27.0], [50.47, 27.53], [50.88, 27.7], [50.75, 28.0], [50.97, 28.53], [51.5, 28.75], [51.75, 28.65], [52.0, 28.75], [52.25, 28.65], [52.5, 28.75], [52.75, 28.65], [53.0, 28.75], [53.5, 28.54], [54.0, 28.75], [54.53, 28.53], [54.75, 28.0], [54.53, 27.47], [54.18, 27.32], [54.15, 27.25], [54.25, 27.0], [54.03, 26.47], [53.5, 26.25], [53.2, 26.38], [53.15, 26.25], [53.25, 26.0], [53.15, 25.75], [53.25, 25.5], [53.15, 25.25], [53.25, 25.0], [53.03, 24.47], [52.68, 24.32], [52.53, 23.97], [52.18, 23.82], [52.03, 23.47], [51.5, 23.25], [50.97, 23.47], [50.75, 24.0], [50.85, 24.25], [50.75, 24.5], [50.85, 24.75], [50.82, 24.82], [50.47, 24.97]]]]}, "2023-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.47, 24.97], [50.25, 25.5], [50.47, 26.03], [50.82, 26.18], [50.85, 26.25], [50.82, 26.32], [50.47, 26.47], [50.25, 27.0], [50.47, 27.53], [50.88, 27.7], [50.75, 28.0], [50.97, 28.53], [51.5, 28.75], [51.75, 28.65], [52.0, 28.75], [52.25, 28.65], [52.5, 28.75], [52.75, 28.65], [53.0, 28.75], [53.5, 28.54], [54.0, 28.75], [54.53, 28.53], [54.75, 28.0], [54.53, 27.47], [54.18, 27.32], [54.15, 27.25], [54.25, 27.0], [54.03, 26.47], [53.5, 26.25], [53.2, 26.38], [53.15, 26.25], [53.25, 26.0], [53.15, 25.75], [53.25, 25.5], [53.15, 25.25], [53.25, 25.0], [53.03, 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24.75], [50.82, 24.82], [50.47, 24.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.645786985987002}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.9803834880885196}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.291463235913398, 19.665811698581194, 19.920194983844965, 19.59118124715394]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.266595496064383, 21.91463019576554, 21.97865047710866, 21.7995948754172]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.588451896178706, 2.906682899330869, 3.2189642399842247, 2.9025992342637577]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.3832743004653594, 4.170104932500919, 5.645786985987002, 5.381243885613628]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2882667814652042, 1.4417881305931877, 1.5736825331775106, 1.4863446153387487]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.341215383861125, 1.7313964194258107, 2.248561616183301, 1.9661367554120748]}}