{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:24.578700", "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": "2026-Mar-21_to_2026-Mar-23_13.5_26.0"}, "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": 2026030002148}, "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": "March 21 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 23 2026"}, "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": 99488.14678360615}, "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": ["Libya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 26.0}, "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": 13.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "13.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 10.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 15.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.25, 28.5], [10.47, 29.03], [11.0, 29.25], [11.25, 29.15], [11.5, 29.25], [11.75, 29.15], [12.0, 29.25], [12.53, 29.03], [12.75, 28.5], [12.65, 28.25], [12.68, 28.18], [12.75, 28.15], [13.0, 28.25], [13.25, 28.15], [13.5, 28.25], [14.03, 28.03], [14.18, 27.68], [14.25, 27.65], [14.5, 27.75], [14.75, 27.65], [15.0, 27.75], [15.25, 27.65], [15.5, 27.75], [16.03, 27.53], [16.25, 27.0], [16.03, 26.47], [15.68, 26.32], [15.65, 26.25], [15.68, 26.18], [16.03, 26.03], [16.25, 25.5], [16.03, 24.97], [15.5, 24.75], [15.0, 24.96], [14.5, 24.75], [14.25, 24.85], [14.18, 24.82], [14.03, 24.47], [13.5, 24.25], [13.25, 24.35], [13.0, 24.25], [12.47, 24.47], [12.32, 24.82], [12.25, 24.85], [12.0, 24.75], [11.47, 24.97], [11.25, 25.5], [11.47, 26.03], [11.82, 26.18], [11.96, 26.5], [11.82, 26.82], [11.47, 26.97], [11.32, 27.32], [10.97, 27.47], [10.82, 27.82], [10.47, 27.97], [10.25, 28.5]]]]}, "2026-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.25, 28.5], [10.47, 29.03], [11.0, 29.25], [11.25, 29.15], [11.5, 29.25], [11.75, 29.15], [12.0, 29.25], [12.53, 29.03], [12.75, 28.5], [12.65, 28.25], [12.68, 28.18], [12.75, 28.15], [13.0, 28.25], [13.25, 28.15], [13.5, 28.25], [14.03, 28.03], [14.18, 27.68], [14.25, 27.65], [14.5, 27.75], [14.75, 27.65], [15.0, 27.75], [15.25, 27.65], [15.5, 27.75], [16.03, 27.53], [16.25, 27.0], [16.03, 26.47], [15.68, 26.32], [15.65, 26.25], [15.68, 26.18], [16.03, 26.03], [16.25, 25.5], [16.03, 24.97], [15.5, 24.75], [15.0, 24.96], [14.5, 24.75], [14.25, 24.85], [14.18, 24.82], [14.03, 24.47], [13.5, 24.25], [13.25, 24.35], [13.0, 24.25], [12.47, 24.47], [12.32, 24.82], [12.25, 24.85], [12.0, 24.75], [11.47, 24.97], [11.25, 25.5], [11.47, 26.03], [11.82, 26.18], [11.96, 26.5], [11.82, 26.82], [11.47, 26.97], [11.32, 27.32], [10.97, 27.47], [10.82, 27.82], [10.47, 27.97], [10.25, 28.5]]]]}, "2026-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.25, 28.5], [10.47, 29.03], [11.0, 29.25], [11.25, 29.15], [11.5, 29.25], [11.75, 29.15], [12.0, 29.25], [12.53, 29.03], [12.75, 28.5], [12.65, 28.25], [12.68, 28.18], [12.75, 28.15], [13.0, 28.25], [13.25, 28.15], [13.5, 28.25], [14.03, 28.03], [14.18, 27.68], [14.25, 27.65], [14.5, 27.75], [14.75, 27.65], [15.0, 27.75], [15.25, 27.65], [15.5, 27.75], [16.03, 27.53], [16.25, 27.0], [16.03, 26.47], [15.68, 26.32], [15.65, 26.25], [15.68, 26.18], [16.03, 26.03], [16.25, 25.5], [16.03, 24.97], [15.5, 24.75], [15.0, 24.96], [14.5, 24.75], [14.25, 24.85], [14.18, 24.82], [14.03, 24.47], [13.5, 24.25], [13.25, 24.35], [13.0, 24.25], [12.47, 24.47], [12.32, 24.82], [12.25, 24.85], [12.0, 24.75], [11.47, 24.97], [11.25, 25.5], [11.47, 26.03], [11.82, 26.18], [11.96, 26.5], [11.82, 26.82], [11.47, 26.97], [11.32, 27.32], [10.97, 27.47], [10.82, 27.82], [10.47, 27.97], [10.25, 28.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.344668920589868}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.75449304287886}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.475057361744064, 24.98768033628113, 24.78508388378009]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.955049133300804, 26.503388977050804, 25.9083025614421]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.726817571166039, 6.019804818508807, 5.516856738961737]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.535177964925538, 7.344668920589868, 6.344150984496423]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5850893271398327, 1.6664142628053626, 1.5514718001530803]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.79277756458714, 1.9879434427923839, 1.7903477965339136]}}