{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:25.113252", "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-Apr-21_to_2021-Apr-23_18.0_-4.0"}, "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": 2021040002417}, "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": "April 21 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 23 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 52523.02523995502}, "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": ["Congo", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "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": -4.0}, "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": 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": 17.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 20.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -4.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.75, 0.5], [16.97, 1.03], [17.5, 1.25], [18.03, 1.03], [18.18, 0.68], [18.5, 0.54], [19.0, 0.75], [19.25, 0.65], [19.5, 0.75], [19.75, 0.65], [20.0, 0.75], [20.53, 0.53], [20.75, 0.0], [20.53, -0.53], [20.0, -0.75], [19.75, -0.65], [19.68, -0.68], [19.65, -0.75], [19.75, -1.0], [19.53, -1.53], [19.18, -1.68], [19.15, -1.75], [19.25, -2.0], [19.15, -2.25], [19.25, -2.5], [19.15, -2.75], [19.25, -3.0], [19.15, -3.25], [19.25, -3.5], [19.03, -4.03], [18.68, -4.18], [18.53, -4.53], [18.0, -4.75], [17.47, -4.53], [17.25, -4.0], [17.47, -3.47], [17.82, -3.32], [17.85, -3.25], [17.75, -3.0], [17.85, -2.75], [17.75, -2.5], [17.85, -2.25], [17.75, -2.0], [17.85, -1.75], [17.82, -1.68], [17.47, -1.53], [17.25, -1.0], [17.35, -0.75], [17.25, -0.5], [17.35, -0.25], [17.32, -0.18], [16.97, -0.03], [16.75, 0.5]]]]}, "2021-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.75, 0.5], [16.97, 1.03], [17.5, 1.25], [18.03, 1.03], [18.18, 0.68], [18.5, 0.54], [19.0, 0.75], [19.25, 0.65], [19.5, 0.75], [19.75, 0.65], [20.0, 0.75], [20.53, 0.53], [20.75, 0.0], [20.53, -0.53], [20.0, -0.75], [19.75, -0.65], [19.68, -0.68], [19.65, -0.75], [19.75, -1.0], [19.53, -1.53], [19.18, -1.68], [19.15, -1.75], [19.25, -2.0], [19.15, -2.25], [19.25, -2.5], [19.15, -2.75], [19.25, -3.0], [19.15, -3.25], [19.25, -3.5], [19.03, -4.03], [18.68, -4.18], [18.53, -4.53], [18.0, -4.75], [17.47, -4.53], [17.25, -4.0], [17.47, -3.47], [17.82, -3.32], [17.85, -3.25], [17.75, -3.0], [17.85, -2.75], [17.75, -2.5], [17.85, -2.25], [17.75, -2.0], [17.85, -1.75], [17.82, -1.68], [17.47, -1.53], [17.25, -1.0], [17.35, -0.75], [17.25, -0.5], [17.35, -0.25], [17.32, -0.18], [16.97, -0.03], [16.75, 0.5]]]]}, "2021-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.75, 0.5], [16.97, 1.03], [17.5, 1.25], [18.03, 1.03], [18.18, 0.68], [18.5, 0.54], [19.0, 0.75], [19.25, 0.65], [19.5, 0.75], [19.75, 0.65], [20.0, 0.75], [20.53, 0.53], [20.75, 0.0], [20.53, -0.53], [20.0, -0.75], [19.75, -0.65], [19.68, -0.68], [19.65, -0.75], [19.75, -1.0], [19.53, -1.53], [19.18, -1.68], [19.15, -1.75], [19.25, -2.0], [19.15, -2.25], [19.25, -2.5], [19.15, -2.75], [19.25, -3.0], [19.15, -3.25], [19.25, -3.5], [19.03, -4.03], [18.68, -4.18], [18.53, -4.53], [18.0, -4.75], [17.47, -4.53], [17.25, -4.0], [17.47, -3.47], [17.82, -3.32], [17.85, -3.25], [17.75, -3.0], [17.85, -2.75], [17.75, -2.5], [17.85, -2.25], [17.75, -2.0], [17.85, -1.75], [17.82, -1.68], [17.47, -1.53], [17.25, -1.0], [17.35, -0.75], [17.25, -0.5], [17.35, -0.25], [17.32, -0.18], [16.97, -0.03], [16.75, 0.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.5549779540587565}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6823371300045094}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.385036391666233, 27.99962318049279, 27.384267868278585]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.281462079864014, 29.036752313281966, 28.438395465108442]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4678628134855871, 2.0912758376967853, 1.4878727388311557]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7945754976313992, 2.5549779540587565, 1.6633733308762544]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5706810340746702, 2.224036541241138, 1.6074306403122753]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9063292700578514, 2.711478534265953, 1.9212857254981195]}}