{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:08.423865", "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-Mar-25_to_2024-Mar-29_37.0_-13.5"}, "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": 2024030001882}, "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 25 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 29 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": 51016.50114424459}, "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": ["Mozambique"]}, "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": -13.5}, "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": 37.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -15.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[35.5, -12.75], [35.8, -12.87], [35.97, -12.47], [36.5, -12.25], [36.75, -12.35], [37.0, -12.25], [37.25, -12.35], [37.5, -12.25], [37.75, -12.35], [38.0, -12.25], [38.53, -12.47], [38.75, -13.0], [38.53, -13.53], [38.18, -13.68], [38.15, -13.75], [38.25, -14.0], [38.15, -14.25], [38.25, -14.5], [38.15, -14.75], [38.25, -15.0], [38.03, -15.53], [37.5, -15.75], [37.25, -15.65], [37.0, -15.75], [36.47, -15.53], [36.32, -15.18], [35.97, -15.03], [35.82, -14.68], [35.47, -14.53], [35.32, -14.18], [34.97, -14.03], [34.75, -13.5], [34.97, -12.97], [35.5, -12.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.47, -12.97], [37.0, -12.75], [37.53, -12.97], [37.75, -13.5], [37.53, -14.03], [37.18, -14.18], [37.03, -14.53], [36.5, -14.75], [35.97, -14.53], [35.75, -14.0], [35.97, -13.47], [36.32, -13.32], [36.47, -12.97]]]]}, "2024-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.97, -14.03], [34.75, -13.5], [34.97, -12.97], [35.5, -12.75], [35.8, -12.87], [35.97, -12.47], [36.5, -12.25], [36.75, -12.35], [37.0, -12.25], [37.25, -12.35], [37.5, -12.25], [37.75, -12.35], [38.0, -12.25], [38.53, -12.47], [38.75, -13.0], [38.53, -13.53], [38.18, -13.68], [38.15, -13.75], [38.25, -14.0], [38.15, -14.25], [38.25, -14.5], [38.15, -14.75], [38.25, -15.0], [38.03, -15.53], [37.5, -15.75], [37.25, -15.65], [37.0, -15.75], [36.47, -15.53], [36.32, -15.18], [35.97, -15.03], [35.82, -14.68], [35.47, -14.53], [35.32, -14.18], [34.97, -14.03]]]]}, "2024-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.97, -14.03], [34.75, -13.5], [34.97, -12.97], [35.5, -12.75], [35.8, -12.87], [35.97, -12.47], [36.5, -12.25], [36.75, -12.35], [37.0, -12.25], [37.25, -12.35], [37.5, -12.25], [37.75, -12.35], [38.0, -12.25], [38.53, -12.47], [38.75, -13.0], [38.53, -13.53], [38.18, -13.68], [38.15, -13.75], [38.25, -14.0], [38.15, -14.25], [38.25, -14.5], [38.15, -14.75], [38.25, -15.0], [38.03, -15.53], [37.5, -15.75], [37.25, -15.65], [37.0, -15.75], [36.47, -15.53], [36.32, -15.18], [35.97, -15.03], [35.82, -14.68], [35.47, -14.53], [35.32, -14.18], [34.97, -14.03]]]]}, "2024-03-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.97, -14.03], [34.75, -13.5], [34.97, -12.97], [35.5, -12.75], [35.8, -12.87], [35.97, -12.47], [36.5, -12.25], [36.75, -12.35], [37.0, -12.25], [37.25, -12.35], [37.5, -12.25], [37.75, -12.35], [38.0, -12.25], [38.53, -12.47], [38.75, -13.0], [38.53, -13.53], [38.18, -13.68], [38.15, -13.75], [38.25, -14.0], [38.15, -14.25], [38.25, -14.5], [38.15, -14.75], [38.25, -15.0], [38.03, -15.53], [37.5, -15.75], [37.25, -15.65], [37.0, -15.75], [36.47, -15.53], [36.32, -15.18], [35.97, -15.03], [35.82, -14.68], [35.47, -14.53], [35.32, -14.18], [34.97, -14.03]]]]}, "2024-03-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, -12.97], [37.5, -12.75], [38.03, -12.97], [38.25, -13.5], [38.15, -13.75], [38.25, -14.0], [38.03, -14.53], [37.5, -14.75], [37.25, -14.65], [37.0, -14.75], [36.47, -14.53], [36.25, -14.0], [36.47, -13.47], [36.82, -13.32], [36.97, -12.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.507986159434836}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6272101072079437}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.16869120252437, 25.0924386088804, 25.176315976180092, 25.51027637239639, 24.91019582234827]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.37838032971291, 26.445435855200685, 26.647356016640174, 26.84606646453085, 25.651396492025412]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1526498678613848, 1.4908331914785133, 1.5905718085942473, 1.9210514527434137, 1.2589021900157036]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1675906850801425, 1.996315775763719, 2.1783388907570043, 2.507986159434836, 1.4432759184605288]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.302815627080159, 1.6359422397355012, 1.7103505816876436, 2.1046589437870864, 1.3274196072222437]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3767051147840665, 2.2770256726038443, 2.5772914568703813, 2.88764886577767, 1.5248491971938445]}}