{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:15.220757", "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": "2022-Jun-13_to_2022-Jun-21_43.5_1.0"}, "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": 2022060002145}, "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": "June 13 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 21 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 74153.62482233823}, "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": ["Kenya", "Somalia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": ["Indian Ocean"]}, "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": 1.0}, "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": 43.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "43.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 41.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 44.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -1.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 3.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[41.32, 0.18], [41.47, 0.53], [41.82, 0.68], [41.97, 1.03], [42.32, 1.18], [42.47, 1.53], [42.82, 1.68], [42.85, 1.75], [42.75, 2.0], [42.85, 2.25], [42.75, 2.5], [42.85, 2.75], [42.75, 3.0], [42.97, 3.53], [43.32, 3.68], [43.47, 4.03], [44.0, 4.25], [44.53, 4.03], [44.75, 3.5], [44.63, 3.2], [45.03, 3.03], [45.25, 2.5], [45.15, 2.25], [45.25, 2.0], [45.15, 1.75], [45.25, 1.5], [45.03, 0.97], [44.5, 0.75], [44.25, 0.85], [44.18, 0.82], [44.03, 0.47], [43.68, 0.32], [43.53, -0.03], [43.18, -0.18], [43.15, -0.25], [43.25, -0.5], [43.15, -0.75], [43.25, -1.0], [43.15, -1.25], [43.25, -1.5], [43.03, -2.03], [42.5, -2.25], [42.0, -2.04], [41.5, -2.25], [40.97, -2.03], [40.75, -1.5], [40.85, -1.25], [40.75, -1.0], [40.85, -0.75], [40.75, -0.5], [40.97, 0.03], [41.32, 0.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.97, 2.53], [44.5, 2.75], [45.03, 2.53], [45.25, 2.0], [45.15, 1.75], [45.25, 1.5], [45.03, 0.97], [44.5, 0.75], [44.25, 0.85], [44.0, 0.75], [43.47, 0.97], [43.25, 1.5], [43.47, 2.03], [43.82, 2.18], [43.97, 2.53]]]]}, "2022-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.75, -1.0], [40.85, -0.75], [40.75, -0.5], [40.97, 0.03], [41.32, 0.18], [41.47, 0.53], [41.82, 0.68], [41.97, 1.03], [42.32, 1.18], [42.47, 1.53], [43.0, 1.75], [43.25, 1.65], [43.32, 1.68], [43.47, 2.03], [43.82, 2.18], [43.97, 2.53], [44.5, 2.75], [45.03, 2.53], [45.25, 2.0], [45.15, 1.75], [45.25, 1.5], [45.03, 0.97], [44.5, 0.75], [44.25, 0.85], [44.18, 0.82], [44.03, 0.47], [43.68, 0.32], [43.53, -0.03], [43.18, -0.18], [43.15, -0.25], [43.25, -0.5], [43.15, -0.75], [43.25, -1.0], [43.15, -1.25], [43.25, -1.5], [43.03, -2.03], [42.5, -2.25], [42.0, -2.04], [41.5, -2.25], [40.97, -2.03], [40.75, -1.5], [40.85, -1.25], [40.75, -1.0]]]]}, "2022-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.75, -1.0], [40.85, -0.75], [40.75, -0.5], [40.97, 0.03], [41.32, 0.18], [41.47, 0.53], [41.82, 0.68], [41.97, 1.03], [42.32, 1.18], [42.47, 1.53], [42.88, 1.7], [42.75, 2.0], [42.97, 2.53], [43.5, 2.75], [44.0, 2.54], [44.5, 2.75], [45.03, 2.53], [45.25, 2.0], [45.15, 1.75], [45.25, 1.5], [45.03, 0.97], [44.5, 0.75], [44.25, 0.85], [44.18, 0.82], [44.03, 0.47], [43.68, 0.32], [43.53, -0.03], [43.18, -0.18], [43.15, -0.25], [43.25, -0.5], [43.15, -0.75], [43.25, -1.0], [43.15, -1.25], [43.25, -1.5], [43.03, -2.03], [42.5, -2.25], [42.0, -2.04], [41.5, -2.25], [40.97, -2.03], [40.75, -1.5], [40.85, -1.25], [40.75, -1.0]]]]}, "2022-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.75, -1.0], [40.85, -0.75], [40.75, -0.5], [40.97, 0.03], [41.32, 0.18], [41.47, 0.53], [41.82, 0.68], [41.97, 1.03], [42.32, 1.18], [42.47, 1.53], [42.88, 1.7], [42.75, 2.0], [42.97, 2.53], [43.5, 2.75], [44.0, 2.54], [44.5, 2.75], [45.03, 2.53], [45.25, 2.0], [45.15, 1.75], [45.25, 1.5], [45.03, 0.97], [44.5, 0.75], [44.25, 0.85], [44.18, 0.82], [44.03, 0.47], [43.68, 0.32], [43.53, -0.03], [43.18, -0.18], [43.15, -0.25], [43.25, -0.5], [43.15, -0.75], [43.25, -1.0], [43.15, -1.25], [43.25, -1.5], [43.03, -2.03], [42.5, -2.25], [42.0, -2.04], [41.5, -2.25], [40.97, -2.03], [40.75, -1.5], [40.85, -1.25], [40.75, -1.0]]]]}, "2022-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.75, 2.0], [42.97, 2.53], [43.5, 2.75], [44.03, 2.53], [44.25, 2.0], [44.04, 1.5], [44.25, 1.0], [44.03, 0.47], [43.5, 0.25], [42.97, 0.47], [42.75, 1.0], [42.96, 1.5], [42.75, 2.0]]]]}, "2022-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.47, 1.03], [43.0, 1.25], [43.53, 1.03], [43.75, 0.5], [43.53, -0.03], [43.0, -0.25], [42.47, -0.03], [42.25, 0.5], [42.47, 1.03]]]]}, "2022-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 1.25], [42.75, 1.5], [42.85, 1.75], [42.75, 2.0], [42.85, 2.25], [42.75, 2.5], [42.85, 2.75], [42.75, 3.0], [42.97, 3.53], [43.32, 3.68], [43.47, 4.03], [44.0, 4.25], [44.53, 4.03], [44.75, 3.5], [44.63, 3.2], [45.03, 3.03], [45.25, 2.5], [45.03, 1.97], [44.68, 1.82], [44.65, 1.75], [44.75, 1.5], [44.53, 0.97], [44.18, 0.82], [44.03, 0.47], [43.68, 0.32], [43.53, -0.03], [43.0, -0.25], [42.47, -0.03], [42.25, 0.5], [42.47, 1.03], [42.82, 1.18], [42.85, 1.25]]]]}, "2022-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 1.25], [42.75, 1.5], [42.85, 1.75], [42.75, 2.0], [42.85, 2.25], [42.75, 2.5], [42.85, 2.75], [42.75, 3.0], [42.97, 3.53], [43.32, 3.68], [43.47, 4.03], [44.0, 4.25], [44.53, 4.03], [44.75, 3.5], [44.63, 3.2], [45.03, 3.03], [45.25, 2.5], [45.03, 1.97], [44.68, 1.82], [44.65, 1.75], [44.75, 1.5], [44.53, 0.97], [44.18, 0.82], [44.03, 0.47], [43.68, 0.32], [43.53, -0.03], [43.0, -0.25], [42.47, -0.03], [42.25, 0.5], [42.47, 1.03], [42.82, 1.18], [42.85, 1.25]]]]}, "2022-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 1.25], [42.75, 1.5], [42.85, 1.75], [42.75, 2.0], [42.85, 2.25], [42.75, 2.5], [42.85, 2.75], [42.75, 3.0], [42.97, 3.53], [43.32, 3.68], [43.47, 4.03], [44.0, 4.25], [44.53, 4.03], [44.75, 3.5], [44.63, 3.2], [45.03, 3.03], [45.25, 2.5], [45.03, 1.97], [44.68, 1.82], [44.65, 1.75], [44.75, 1.5], [44.53, 0.97], [44.18, 0.82], [44.03, 0.47], [43.68, 0.32], [43.53, -0.03], [43.0, -0.25], [42.47, -0.03], [42.25, 0.5], [42.47, 1.03], [42.82, 1.18], [42.85, 1.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.7101583636642772}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.087805026544272}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.301207767583776, 27.494589516476708, 27.809845902312873, 27.58598717617963, 27.32378072837173, 27.1871727064605, 27.146497403742046, 27.22969205080176, 27.23015306120749]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.64919024258751, 28.300399356746823, 28.717791085601732, 28.52719519894896, 27.662687208772866, 27.1871727064605, 27.93644937261439, 28.056517759662597, 27.942690744260858]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.968415430371086, 0.9650229190253299, 1.2994514382806917, 1.106685657614254, 0.8691006949044606, 0.9561972892596486, 0.9619092602170501, 1.0831524735581348, 1.124965998737454]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.0786015967381672, 1.1474593003671885, 1.7101583636642772, 1.6066640583429717, 0.935768603035342, 0.9561972892596486, 1.0744020395642337, 1.315125785560383, 1.3222404521339968]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.554220808286985, 1.4659019318780269, 1.9312377569372443, 1.6844483320151296, 1.2446666378060454, 1.6198886778193298, 1.353464141039589, 1.5102647978207104, 1.5341796271332961]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6398007957439198, 1.6026879305287771, 2.362139429240347, 2.346991965018336, 1.3166345701107498, 1.6198886778193298, 1.682339290390593, 1.7677366680310262, 1.7941974166453338]}}