{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:03.307678", "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": "2024-May-18_to_2024-May-22_36.0_18.0"}, "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": 2024050001774}, "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": "May 18 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 22 2024"}, "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": 58987.77248252421}, "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": ["Sudan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 18.0}, "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": 36.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 36.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[33.35, 16.25], [33.25, 16.5], [33.35, 16.75], [33.25, 17.0], [33.47, 17.53], [33.82, 17.68], [33.85, 17.75], [33.75, 18.0], [33.97, 18.53], [34.5, 18.75], [34.75, 18.65], [35.0, 18.75], [35.25, 18.65], [35.32, 18.68], [35.35, 18.75], [35.25, 19.0], [35.47, 19.53], [36.0, 19.75], [36.53, 19.53], [36.75, 19.0], [36.65, 18.75], [36.68, 18.68], [37.03, 18.53], [37.25, 18.0], [37.03, 17.47], [36.68, 17.32], [36.65, 17.25], [36.75, 17.0], [36.53, 16.47], [36.0, 16.25], [35.75, 16.35], [35.68, 16.32], [35.53, 15.97], [35.0, 15.75], [34.75, 15.85], [34.68, 15.82], [34.53, 15.47], [34.0, 15.25], [33.47, 15.47], [33.25, 16.0], [33.35, 16.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.0, 15.25], [33.47, 15.47], [33.25, 16.0], [33.47, 16.53], [34.0, 16.75], [34.53, 16.53], [34.75, 16.0], [34.53, 15.47], [34.0, 15.25]]], [[[34.75, 18.0], [34.97, 18.53], [35.5, 18.75], [35.75, 18.65], [36.0, 18.75], [36.25, 18.65], [36.5, 18.75], [37.03, 18.53], [37.25, 18.0], [37.03, 17.47], [36.68, 17.32], [36.65, 17.25], [36.75, 17.0], [36.53, 16.47], [36.0, 16.25], [35.47, 16.47], [35.25, 17.0], [35.35, 17.25], [35.32, 17.32], [34.97, 17.47], [34.75, 18.0]]]]}, "2024-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.25, 16.5], [33.35, 16.75], [33.25, 17.0], [33.47, 17.53], [33.82, 17.68], [33.85, 17.75], [33.75, 18.0], [33.97, 18.53], [34.5, 18.75], [34.75, 18.65], [35.0, 18.75], [35.25, 18.65], [35.32, 18.68], [35.35, 18.75], [35.25, 19.0], [35.47, 19.53], [36.0, 19.75], [36.53, 19.53], [36.75, 19.0], [36.65, 18.75], [36.68, 18.68], [37.03, 18.53], [37.25, 18.0], [37.03, 17.47], [36.68, 17.32], [36.65, 17.25], [36.75, 17.0], [36.53, 16.47], [36.0, 16.25], [35.75, 16.35], [35.68, 16.32], [35.53, 15.97], [35.0, 15.75], [34.75, 15.85], [34.68, 15.82], [34.53, 15.47], [34.0, 15.25], [33.47, 15.47], [33.25, 16.0], [33.35, 16.25], [33.25, 16.5]]]]}, "2024-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.25, 16.5], [33.35, 16.75], [33.25, 17.0], [33.47, 17.53], [33.82, 17.68], [33.85, 17.75], [33.75, 18.0], [33.97, 18.53], [34.5, 18.75], [34.75, 18.65], [35.0, 18.75], [35.25, 18.65], [35.32, 18.68], [35.35, 18.75], [35.25, 19.0], [35.47, 19.53], [36.0, 19.75], [36.53, 19.53], [36.75, 19.0], [36.65, 18.75], [36.68, 18.68], [37.03, 18.53], [37.25, 18.0], [37.03, 17.47], [36.68, 17.32], [36.65, 17.25], [36.75, 17.0], [36.53, 16.47], [36.0, 16.25], [35.75, 16.35], [35.68, 16.32], [35.53, 15.97], [35.0, 15.75], [34.75, 15.85], [34.68, 15.82], [34.53, 15.47], [34.0, 15.25], [33.47, 15.47], [33.25, 16.0], [33.35, 16.25], [33.25, 16.5]]]]}, "2024-05-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.25, 17.0], [33.47, 17.53], [33.82, 17.68], [33.85, 17.75], [33.75, 18.0], [33.97, 18.53], [34.5, 18.75], [34.75, 18.65], [35.0, 18.75], [35.25, 18.65], [35.32, 18.68], [35.35, 18.75], [35.25, 19.0], [35.47, 19.53], [36.0, 19.75], [36.53, 19.53], [36.75, 19.0], [36.65, 18.75], [36.75, 18.5], [36.65, 18.25], [36.75, 18.0], [36.53, 17.47], [36.18, 17.32], [36.15, 17.25], [36.25, 17.0], [36.03, 16.47], [35.68, 16.32], [35.53, 15.97], [35.0, 15.75], [34.75, 15.85], [34.5, 15.75], [34.25, 15.85], [34.0, 15.75], [33.47, 15.97], [33.25, 16.5], [33.35, 16.75], [33.25, 17.0]]]]}, "2024-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.0, 16.25], [33.47, 16.47], [33.25, 17.0], [33.47, 17.53], [34.0, 17.75], [34.25, 17.65], [34.5, 17.75], [35.03, 17.53], [35.25, 17.0], [35.03, 16.47], [34.5, 16.25], [34.25, 16.35], [34.0, 16.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1287194432193814}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.3217104941305315}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [35.974507431258814, 37.318453317083424, 36.789540504141314, 37.1023281263424, 37.3974068929644]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.57145023677458, 38.254869236932336, 38.024418426074135, 38.45744033430918, 37.5130754730298]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0253164977137126, 2.708379022187876, 2.121898182500408, 2.2540584023769945, 1.8835470531370788]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.184612476271525, 3.1287194432193814, 2.523390223060005, 2.8180697553571576, 1.9788773035919576]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2437295025849264, 1.6321419393937315, 1.2950328375558178, 1.3628018996218116, 1.1183533757529793]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.34018494969334, 1.9994714848353878, 1.6913372321338536, 1.7370736454036813, 1.1661426586826407]}}