{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:10.979695", "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-Sep-12_to_2022-Sep-18_54.5_22.5"}, "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": 2022090001928}, "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": "September 12 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 18 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": 96689.8490019517}, "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", "United Arab Emirates"]}, "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": 22.5}, "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": 54.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "54.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 53.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 59.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[54.47, 24.03], [54.82, 24.18], [54.85, 24.25], [54.75, 24.5], [54.85, 24.75], [54.75, 25.0], [54.97, 25.53], [55.5, 25.75], [56.03, 25.53], [56.25, 25.0], [56.15, 24.75], [56.18, 24.68], [56.53, 24.53], [56.68, 24.18], [56.75, 24.15], [57.0, 24.25], [57.25, 24.15], [57.32, 24.18], [57.47, 24.53], [58.0, 24.75], [58.25, 24.65], [58.5, 24.75], [59.03, 24.53], [59.2, 24.13], [59.5, 24.25], [60.03, 24.03], [60.25, 23.5], [60.15, 23.25], [60.25, 23.0], [60.03, 22.47], [59.5, 22.25], [59.25, 22.35], [59.0, 22.25], [58.75, 22.35], [58.68, 22.32], [58.53, 21.97], [58.0, 21.75], [57.75, 21.85], [57.68, 21.82], [57.53, 21.47], [57.0, 21.25], [56.47, 21.47], [56.25, 22.0], [56.35, 22.25], [56.25, 22.5], [56.35, 22.75], [56.32, 22.82], [56.0, 22.96], [55.68, 22.82], [55.65, 22.75], [55.75, 22.5], [55.53, 21.97], [55.0, 21.75], [54.75, 21.85], [54.68, 21.82], [54.53, 21.47], [54.18, 21.32], [54.15, 21.25], [54.25, 21.0], [54.03, 20.47], [53.5, 20.25], [52.97, 20.47], [52.75, 21.0], [52.85, 21.25], [52.75, 21.5], [52.85, 21.75], [52.75, 22.0], [52.97, 22.53], [53.32, 22.68], [53.35, 22.75], [53.25, 23.0], [53.47, 23.53], [54.0, 23.75], [54.25, 23.65], [54.32, 23.68], [54.47, 24.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.Asia", "Arabian-Peninsula", "S.Asia", "Arabian-Sea"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.75, 22.0], [52.97, 22.53], [53.32, 22.68], [53.47, 23.03], [53.82, 23.18], [53.97, 23.53], [54.5, 23.75], [54.75, 23.65], [55.0, 23.75], [55.43, 23.57], [55.25, 24.0], [55.47, 24.53], [56.0, 24.75], [56.53, 24.53], [56.75, 24.0], [56.53, 23.47], [56.0, 23.25], [55.57, 23.43], [55.75, 23.0], [55.65, 22.75], [55.75, 22.5], [55.53, 21.97], [55.0, 21.75], [54.75, 21.85], [54.68, 21.82], [54.53, 21.47], [54.13, 21.3], [54.25, 21.0], [54.03, 20.47], [53.5, 20.25], [52.97, 20.47], [52.75, 21.0], [52.96, 21.5], [52.75, 22.0]]]]}, "2022-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.75, 21.5], [52.85, 21.75], [52.75, 22.0], [52.97, 22.53], [53.32, 22.68], [53.35, 22.75], [53.25, 23.0], [53.47, 23.53], [54.0, 23.75], [54.25, 23.65], [54.32, 23.68], [54.47, 24.03], [54.82, 24.18], [54.85, 24.25], [54.75, 24.5], [54.85, 24.75], [54.75, 25.0], [54.97, 25.53], [55.5, 25.75], [56.03, 25.53], [56.25, 25.0], [56.15, 24.75], [56.18, 24.68], [56.53, 24.53], [56.75, 24.0], [56.53, 23.47], [56.18, 23.32], [56.03, 22.97], [55.68, 22.82], [55.65, 22.75], [55.75, 22.5], [55.53, 21.97], [55.0, 21.75], [54.75, 21.85], [54.68, 21.82], [54.53, 21.47], [54.18, 21.32], [54.15, 21.25], [54.25, 21.0], [54.03, 20.47], [53.5, 20.25], [52.97, 20.47], [52.75, 21.0], [52.85, 21.25], [52.75, 21.5]]]]}, "2022-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.75, 21.5], [52.85, 21.75], [52.75, 22.0], [52.97, 22.53], [53.32, 22.68], [53.35, 22.75], [53.25, 23.0], [53.47, 23.53], [54.0, 23.75], [54.25, 23.65], [54.32, 23.68], [54.47, 24.03], [54.82, 24.18], [54.85, 24.25], [54.75, 24.5], [54.85, 24.75], [54.75, 25.0], [54.97, 25.53], [55.5, 25.75], [56.03, 25.53], [56.25, 25.0], [56.15, 24.75], [56.18, 24.68], [56.53, 24.53], [56.75, 24.0], [56.53, 23.47], [56.18, 23.32], [56.03, 22.97], [55.68, 22.82], [55.65, 22.75], [55.75, 22.5], [55.53, 21.97], [55.0, 21.75], [54.75, 21.85], [54.68, 21.82], [54.53, 21.47], [54.18, 21.32], [54.15, 21.25], [54.25, 21.0], [54.03, 20.47], [53.5, 20.25], [52.97, 20.47], [52.75, 21.0], [52.85, 21.25], [52.75, 21.5]]]]}, "2022-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.75, 22.0], [52.97, 22.53], [53.32, 22.68], [53.35, 22.75], [53.25, 23.0], [53.47, 23.53], [54.0, 23.75], [54.25, 23.65], [54.32, 23.68], [54.47, 24.03], [54.82, 24.18], [54.85, 24.25], [54.75, 24.5], [54.85, 24.75], [54.75, 25.0], [54.97, 25.53], [55.5, 25.75], [56.03, 25.53], [56.25, 25.0], [56.15, 24.75], [56.18, 24.68], [56.53, 24.53], [56.68, 24.18], [56.75, 24.15], [57.0, 24.25], [57.25, 24.15], [57.32, 24.18], [57.47, 24.53], [58.0, 24.75], [58.25, 24.65], [58.5, 24.75], [59.03, 24.53], [59.2, 24.13], [59.5, 24.25], [60.03, 24.03], [60.25, 23.5], [60.15, 23.25], [60.25, 23.0], [60.03, 22.47], [59.5, 22.25], [59.25, 22.35], [59.0, 22.25], [58.47, 22.47], [58.32, 22.82], [58.25, 22.85], [58.0, 22.75], [57.75, 22.85], [57.5, 22.75], [57.25, 22.85], [57.0, 22.75], [56.75, 22.85], [56.5, 22.75], [56.0, 22.96], [55.68, 22.82], [55.65, 22.75], [55.75, 22.5], [55.53, 21.97], [55.0, 21.75], [54.75, 21.85], [54.68, 21.82], [54.53, 21.47], [54.18, 21.32], [54.03, 20.97], [53.5, 20.75], [52.97, 20.97], [52.75, 21.5], [52.85, 21.75], [52.75, 22.0]]]]}, "2022-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.97, 22.53], [53.32, 22.68], [53.47, 23.03], [54.0, 23.25], [54.25, 23.15], [54.5, 23.25], [54.75, 23.15], [55.0, 23.25], [55.53, 23.03], [55.75, 22.5], [55.53, 21.97], [55.0, 21.75], [54.75, 21.85], [54.68, 21.82], [54.53, 21.47], [54.18, 21.32], [54.03, 20.97], [53.5, 20.75], [52.97, 20.97], [52.75, 21.5], [52.85, 21.75], [52.75, 22.0], [52.97, 22.53]]], [[[55.75, 23.5], [55.97, 24.03], [56.5, 24.25], [56.75, 24.15], [57.0, 24.25], [57.25, 24.15], [57.32, 24.18], [57.47, 24.53], [58.0, 24.75], [58.25, 24.65], [58.5, 24.75], [59.03, 24.53], [59.2, 24.13], [59.5, 24.25], [60.03, 24.03], [60.25, 23.5], [60.15, 23.25], [60.25, 23.0], [60.03, 22.47], [59.5, 22.25], [59.25, 22.35], [59.0, 22.25], [58.75, 22.35], [58.68, 22.32], [58.53, 21.97], [58.0, 21.75], [57.75, 21.85], [57.68, 21.82], [57.53, 21.47], [57.0, 21.25], [56.47, 21.47], [56.25, 22.0], [56.35, 22.25], [56.25, 22.5], [56.35, 22.75], [56.32, 22.82], [55.97, 22.97], [55.75, 23.5]]]]}, "2022-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.97, 22.97], [55.75, 23.5], [55.97, 24.03], [56.5, 24.25], [56.75, 24.15], [57.0, 24.25], [57.25, 24.15], [57.32, 24.18], [57.47, 24.53], [58.0, 24.75], [58.25, 24.65], [58.5, 24.75], [59.03, 24.53], [59.2, 24.13], [59.5, 24.25], [60.03, 24.03], [60.25, 23.5], [60.15, 23.25], [60.25, 23.0], [60.03, 22.47], [59.5, 22.25], [59.25, 22.35], [59.0, 22.25], [58.75, 22.35], [58.68, 22.32], [58.53, 21.97], [58.0, 21.75], [57.75, 21.85], [57.68, 21.82], [57.53, 21.47], [57.0, 21.25], [56.47, 21.47], [56.25, 22.0], [56.35, 22.25], [56.25, 22.5], [56.35, 22.75], [56.32, 22.82], [55.97, 22.97]]]]}, "2022-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.97, 22.97], [55.75, 23.5], [55.97, 24.03], [56.5, 24.25], [57.03, 24.03], [57.18, 23.68], [57.25, 23.65], [57.5, 23.75], [57.75, 23.65], [58.0, 23.75], [58.25, 23.65], [58.5, 23.75], [59.03, 23.53], [59.25, 23.0], [59.03, 22.47], [58.68, 22.32], [58.53, 21.97], [58.0, 21.75], [57.75, 21.85], [57.68, 21.82], [57.53, 21.47], [57.0, 21.25], [56.47, 21.47], [56.25, 22.0], [56.35, 22.25], [56.25, 22.5], [56.35, 22.75], [56.32, 22.82], [55.97, 22.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.15410773172465}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.236503593636034}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [36.27921474574646, 36.34331868396839, 36.309443144594866, 34.84563811868884, 34.64939542140843, 33.809179752632645, 34.005948427455166]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.58421367652471, 37.11691393292227, 37.15863830922814, 36.98300399722456, 36.75805163573233, 36.960549587275295, 35.47169972903572]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7466148724665105, 1.9889066732995886, 2.036551441911776, 2.0699571426979286, 2.647237003180313, 2.6282241646853115, 2.1059339057471345]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8777083548744145, 2.581784105971167, 2.801840032608311, 2.9056117649450925, 3.678469005520469, 4.15410773172465, 2.460364779918393]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3327350460702865, 1.576751956450249, 1.6470015344547608, 1.668940166532366, 1.941069263835981, 1.8617153414153913, 1.385790200696986]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5259364684410455, 1.905685712390232, 2.3970267101441585, 2.2532291221173573, 2.6701203448318287, 2.523024277993193, 1.4542426798867725]}}