{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:49.017235", "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-Oct-04_to_2022-Oct-08_46.5_20.0"}, "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": 2022100001585}, "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": "October 04 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 08 2022"}, "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": 55084.35258591728}, "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"]}, "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": 20.0}, "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": 45.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[46.47, 21.03], [46.82, 21.18], [46.97, 21.53], [47.5, 21.75], [47.75, 21.65], [48.0, 21.75], [48.25, 21.65], [48.5, 21.75], [49.03, 21.53], [49.25, 21.0], [49.15, 20.75], [49.25, 20.5], [49.04, 20.0], [49.25, 19.5], [49.03, 18.97], [48.5, 18.75], [47.97, 18.97], [47.82, 19.32], [47.75, 19.36], [47.7, 19.38], [47.53, 18.97], [47.0, 18.75], [46.75, 18.85], [46.5, 18.75], [45.97, 18.97], [45.82, 19.32], [45.75, 19.35], [45.5, 19.25], [45.25, 19.35], [45.0, 19.25], [44.47, 19.47], [44.25, 20.0], [44.35, 20.25], [44.25, 20.5], [44.35, 20.75], [44.25, 21.0], [44.47, 21.53], [45.0, 21.75], [45.53, 21.53], [45.68, 21.18], [46.03, 21.03], [46.18, 20.68], [46.25, 20.65], [46.32, 20.68], [46.47, 21.03]]]]}}, "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": {"2022-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.97, 19.47], [45.75, 20.0], [45.97, 20.53], [46.5, 20.75], [46.75, 20.65], [46.88, 20.7], [46.75, 21.0], [46.97, 21.53], [47.5, 21.75], [47.75, 21.65], [48.0, 21.75], [48.25, 21.65], [48.5, 21.75], [49.03, 21.53], [49.25, 21.0], [49.15, 20.75], [49.25, 20.5], [49.03, 19.97], [48.68, 19.82], [48.53, 19.47], [48.0, 19.25], [47.5, 19.46], [47.0, 19.25], [46.75, 19.35], [46.5, 19.25], [45.97, 19.47]]], [[[45.0, 20.25], [44.47, 20.47], [44.25, 21.0], [44.47, 21.53], [45.0, 21.75], [45.53, 21.53], [45.75, 21.0], [45.53, 20.47], [45.0, 20.25]]]]}, "2022-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.25, 20.5], [44.35, 20.75], [44.25, 21.0], [44.47, 21.53], [45.0, 21.75], [45.53, 21.53], [45.68, 21.18], [46.03, 21.03], [46.18, 20.68], [46.25, 20.65], [46.32, 20.68], [46.47, 21.03], [46.82, 21.18], [46.97, 21.53], [47.5, 21.75], [47.75, 21.65], [48.0, 21.75], [48.25, 21.65], [48.5, 21.75], [49.03, 21.53], [49.25, 21.0], [49.15, 20.75], [49.25, 20.5], [49.04, 20.0], [49.25, 19.5], [49.03, 18.97], [48.5, 18.75], [47.97, 18.97], [47.82, 19.32], [47.7, 19.38], [47.53, 18.97], [47.0, 18.75], [46.75, 18.85], [46.5, 18.75], [45.97, 18.97], [45.82, 19.32], [45.75, 19.35], [45.5, 19.25], [45.25, 19.35], [45.0, 19.25], [44.47, 19.47], [44.25, 20.0], [44.35, 20.25], [44.25, 20.5]]]]}, "2022-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.25, 20.5], [44.35, 20.75], [44.25, 21.0], [44.47, 21.53], [45.0, 21.75], [45.53, 21.53], [45.68, 21.18], [46.03, 21.03], [46.18, 20.68], [46.25, 20.65], [46.32, 20.68], [46.47, 21.03], [46.82, 21.18], [46.97, 21.53], [47.5, 21.75], [47.75, 21.65], [48.0, 21.75], [48.25, 21.65], [48.5, 21.75], [49.03, 21.53], [49.25, 21.0], [49.15, 20.75], [49.25, 20.5], [49.04, 20.0], [49.25, 19.5], [49.03, 18.97], [48.5, 18.75], [47.97, 18.97], [47.82, 19.32], [47.7, 19.38], [47.53, 18.97], [47.0, 18.75], [46.75, 18.85], [46.5, 18.75], [45.97, 18.97], [45.82, 19.32], [45.75, 19.35], [45.5, 19.25], [45.25, 19.35], [45.0, 19.25], [44.47, 19.47], [44.25, 20.0], [44.35, 20.25], [44.25, 20.5]]]]}, "2022-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.25, 20.5], [44.47, 21.03], [45.0, 21.25], [45.25, 21.15], [45.5, 21.25], [46.03, 21.03], [46.18, 20.68], [46.25, 20.65], [46.32, 20.68], [46.47, 21.03], [47.0, 21.25], [47.25, 21.15], [47.5, 21.25], [48.03, 21.03], [48.25, 20.5], [48.07, 20.07], [48.5, 20.25], [49.03, 20.03], [49.25, 19.5], [49.03, 18.97], [48.5, 18.75], [47.97, 18.97], [47.75, 19.5], [47.53, 18.97], [47.0, 18.75], [46.75, 18.85], [46.5, 18.75], [45.97, 18.97], [45.82, 19.32], [45.75, 19.35], [45.5, 19.25], [45.25, 19.35], [45.0, 19.25], [44.47, 19.47], [44.25, 20.0], [44.35, 20.25], [44.25, 20.5]], [[47.93, 19.93], [47.68, 19.82], [47.65, 19.75], [47.75, 19.5], [47.93, 19.93]]]]}, "2022-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.97, 20.53], [46.5, 20.75], [47.03, 20.53], [47.25, 20.0], [47.03, 19.47], [46.5, 19.25], [45.97, 19.47], [45.75, 20.0], [45.97, 20.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.72545281157835}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.4087238048089734}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.94401550467478, 33.273084242788, 32.42362509978415, 31.450511936629198, 31.059571455995297]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.34354741637844, 34.636003036653904, 33.34394443181276, 32.58919331001658, 31.059571455995297]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.081256580495796, 2.972195828963651, 2.354796599783559, 1.889238166696278, 1.9084049175239102]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.92822206598197, 3.72545281157835, 2.9188571198267255, 2.375041197252415, 1.9084049175239102]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4762520495471645, 2.098566377913995, 1.6478389892390621, 1.3410231940458874, 1.3025636635420306]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9307962946738397, 2.6276943150025445, 2.035096506149136, 1.577278446664075, 1.3025636635420306]}}