{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:15:15.809106", "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": "2021-Oct-27_to_2021-Oct-31_18.0_3.5"}, "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": 2021100002542}, "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 27 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 31 2021"}, "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": 70975.36242329102}, "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": ["Cameroon", "Central African Republic", "Congo"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa", "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": 3.5}, "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": 18.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 14.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[13.85, 4.25], [13.75, 4.5], [13.97, 5.03], [14.5, 5.25], [15.03, 5.03], [15.25, 4.5], [15.15, 4.25], [15.18, 4.18], [15.25, 4.15], [15.5, 4.25], [16.03, 4.03], [16.18, 3.68], [16.25, 3.65], [16.32, 3.68], [16.35, 3.75], [16.25, 4.0], [16.47, 4.53], [17.0, 4.75], [17.25, 4.65], [17.5, 4.75], [18.03, 4.53], [18.18, 4.18], [18.53, 4.03], [18.75, 3.5], [18.65, 3.25], [18.75, 3.0], [18.53, 2.47], [18.18, 2.32], [18.03, 1.97], [17.5, 1.75], [16.97, 1.97], [16.82, 2.32], [16.75, 2.35], [16.5, 2.25], [16.25, 2.35], [16.0, 2.25], [15.75, 2.35], [15.68, 2.32], [15.53, 1.97], [15.0, 1.75], [14.75, 1.85], [14.5, 1.75], [13.97, 1.97], [13.82, 2.32], [13.47, 2.47], [13.25, 3.0], [13.35, 3.25], [13.25, 3.5], [13.47, 4.03], [13.82, 4.18], [13.85, 4.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.47, 4.03], [18.0, 4.25], [18.53, 4.03], [18.75, 3.5], [18.53, 2.97], [18.0, 2.75], [17.47, 2.97], [17.25, 3.5], [17.47, 4.03]]]]}, "2021-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.47, 4.03], [18.0, 4.25], [18.53, 4.03], [18.75, 3.5], [18.53, 2.97], [18.0, 2.75], [17.47, 2.97], [17.25, 3.5], [17.47, 4.03]]]]}, "2021-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, 3.5], [13.47, 4.03], [13.82, 4.18], [13.85, 4.25], [13.75, 4.5], [13.97, 5.03], [14.5, 5.25], [15.03, 5.03], [15.25, 4.5], [15.15, 4.25], [15.18, 4.18], [15.25, 4.15], [15.5, 4.25], [16.03, 4.03], [16.18, 3.68], [16.25, 3.65], [16.32, 3.68], [16.35, 3.75], [16.25, 4.0], [16.47, 4.53], [17.0, 4.75], [17.25, 4.65], [17.5, 4.75], [18.03, 4.53], [18.18, 4.18], [18.53, 4.03], [18.75, 3.5], [18.65, 3.25], [18.75, 3.0], [18.53, 2.47], [18.18, 2.32], [18.03, 1.97], [17.5, 1.75], [16.97, 1.97], [16.82, 2.32], [16.75, 2.35], [16.5, 2.25], [16.25, 2.35], [16.0, 2.25], [15.75, 2.35], [15.68, 2.32], [15.53, 1.97], [15.0, 1.75], [14.75, 1.85], [14.5, 1.75], [13.97, 1.97], [13.82, 2.32], [13.47, 2.47], [13.25, 3.0], [13.35, 3.25], [13.25, 3.5]]]]}, "2021-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, 3.5], [13.47, 4.03], [13.82, 4.18], [13.85, 4.25], [13.75, 4.5], [13.97, 5.03], [14.5, 5.25], [15.03, 5.03], [15.25, 4.5], [15.15, 4.25], [15.18, 4.18], [15.25, 4.15], [15.5, 4.25], [16.03, 4.03], [16.18, 3.68], [16.25, 3.65], [16.32, 3.68], [16.35, 3.75], [16.25, 4.0], [16.47, 4.53], [17.0, 4.75], [17.25, 4.65], [17.5, 4.75], [18.03, 4.53], [18.18, 4.18], [18.53, 4.03], [18.75, 3.5], [18.65, 3.25], [18.75, 3.0], [18.53, 2.47], [18.18, 2.32], [18.03, 1.97], [17.5, 1.75], [16.97, 1.97], [16.82, 2.32], [16.75, 2.35], [16.5, 2.25], [16.25, 2.35], [16.0, 2.25], [15.75, 2.35], [15.68, 2.32], [15.53, 1.97], [15.0, 1.75], [14.75, 1.85], [14.5, 1.75], [13.97, 1.97], [13.82, 2.32], [13.47, 2.47], [13.25, 3.0], [13.35, 3.25], [13.25, 3.5]]]]}, "2021-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, 3.5], [13.47, 4.03], [13.82, 4.18], [13.85, 4.25], [13.75, 4.5], [13.97, 5.03], [14.5, 5.25], [15.03, 5.03], [15.25, 4.5], [15.15, 4.25], [15.18, 4.18], [15.25, 4.15], [15.5, 4.25], [16.03, 4.03], [16.18, 3.68], [16.25, 3.65], [16.32, 3.68], [16.35, 3.75], [16.25, 4.0], [16.47, 4.53], [17.0, 4.75], [17.25, 4.65], [17.5, 4.75], [18.03, 4.53], [18.18, 4.18], [18.53, 4.03], [18.75, 3.5], [18.65, 3.25], [18.75, 3.0], [18.53, 2.47], [18.18, 2.32], [18.03, 1.97], [17.5, 1.75], [16.97, 1.97], [16.82, 2.32], [16.75, 2.35], [16.5, 2.25], [16.25, 2.35], [16.0, 2.25], [15.75, 2.35], [15.68, 2.32], [15.53, 1.97], [15.0, 1.75], [14.75, 1.85], [14.5, 1.75], [13.97, 1.97], [13.82, 2.32], [13.47, 2.47], [13.25, 3.0], [13.35, 3.25], [13.25, 3.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.1365166373522015}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4308743962938912}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.24953600803866, 25.05869864697803, 24.854506372152287, 24.771762903497006, 25.25103626570467]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.24953600803866, 25.05869864697803, 25.834931308252123, 25.615539916460477, 26.171627781438133]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2991324680543244, 1.0768348067258557, 1.35133594573388, 1.2503035778855252, 1.712104600819121]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2991324680543244, 1.0768348067258557, 1.6632121146901682, 1.6254368523428866, 2.1365166373522015]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5596732753837421, 1.3087287657582214, 1.6871495333565327, 1.6016690226252615, 2.0994084642910633]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5596732753837421, 1.3087287657582214, 2.085686652074908, 2.0021668432135358, 2.624665298941393]}}