{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:51:21.502423", "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-Feb-17_to_2023-Feb-21_55.0_17.0"}, "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": 2023020002114}, "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": "February 17 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 21 2023"}, "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": 113009.22011838343}, "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", "Yemen"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": ["Arabian Sea"]}, "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": 17.0}, "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": 55.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "55.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 49.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 56.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[50.96, 16.0], [50.75, 16.5], [50.97, 17.03], [51.5, 17.25], [51.75, 17.15], [52.0, 17.25], [52.25, 17.15], [52.5, 17.25], 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regions affected", "value": ["N.Eastern-Africa", "Arabian-Peninsula", "Arabian-Sea"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.47, 17.53], [54.0, 17.75], [54.53, 17.53], [54.75, 17.0], [54.53, 16.47], [54.0, 16.25], [53.47, 16.47], [53.25, 17.0], [53.47, 17.53]]]]}, "2023-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.47, 15.53], [50.0, 15.75], [50.25, 15.65], [50.5, 15.75], [50.75, 15.65], [50.82, 15.68], [50.96, 16.0], [50.75, 16.5], [50.97, 17.03], [51.5, 17.25], [51.75, 17.15], [52.0, 17.25], [52.25, 17.15], [52.5, 17.25], [52.75, 17.15], [53.0, 17.25], [53.25, 17.15], [53.32, 17.18], [53.47, 17.53], [54.0, 17.75], [54.25, 17.65], [54.5, 17.75], [54.75, 17.65], [55.0, 17.75], [55.25, 17.65], [55.5, 17.75], [55.75, 17.65], [56.0, 17.75], [56.53, 17.53], [56.75, 17.0], [56.53, 16.47], 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3.627362317026268}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8251116730075474}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.697689202011645, 25.228311564710964, 25.815226517633107, 25.393933994199188, 25.20649157452243]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.697689202011645, 26.521821535601077, 26.726357960841312, 26.48204502103414, 25.74617950154385]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0476112442597696, 1.8228125311629295, 2.2330980463765835, 1.7486369192450462, 1.2940129822878486]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.0476112442597696, 3.4335068304147285, 3.627362317026268, 3.378718560643847, 2.2356948873095916]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5384492383014687, 1.9794217613518792, 2.562115279093621, 1.9578218697511454, 1.5499392607588665]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5384492383014687, 3.0165885098415735, 3.3591521909085085, 2.809001643410637, 2.1071632262670628]}}