{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:30.030886", "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-Apr-25_to_2026-Apr-29_37.0_-23.5"}, "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": 2026040002431}, "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 25 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 29 2026"}, "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": 62622.53663823174}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "Madagascar"]}, "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": ["Mozambique Channel"]}, "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": -23.5}, "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": 33.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.25}, "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": -21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, -21.97], [36.0, -21.75], [36.53, -21.97], [36.68, -22.32], [36.75, -22.35], [37.0, -22.25], [37.25, -22.35], [37.5, -22.25], [38.03, -22.47], [38.25, -23.0], [38.15, -23.25], [38.25, -23.5], [38.15, -23.75], [38.25, -24.0], [38.03, -24.53], [37.5, -24.75], [36.97, -24.53], [36.82, -24.18], [36.75, -24.15], [36.5, -24.25], [35.97, -24.03], [35.82, -23.68], [35.47, -23.53], [35.25, -23.0], [35.35, -22.75], [35.25, -22.5], [35.47, -21.97]]]]}, "2026-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.75, -21.5], [33.97, -20.97], [34.5, -20.75], [34.75, -20.85], [35.0, -20.75], [35.53, -20.97], [35.7, -21.37], [36.0, -21.25], [36.53, -21.47], [36.68, -21.82], [37.03, -21.97], [37.18, -22.32], [37.25, -22.35], [37.5, -22.25], [38.03, -22.47], [38.25, -23.0], [38.15, -23.25], [38.25, -23.5], [38.15, -23.75], [38.18, -23.82], [38.53, -23.97], [38.75, -24.5], [38.53, -25.03], [38.0, -25.25], [37.47, -25.03], [37.32, -24.68], [37.25, -24.65], [37.0, -24.75], [36.75, -24.65], [36.5, -24.75], [35.97, -24.53], [35.82, -24.18], [35.47, -24.03], [35.32, -23.68], [35.25, -23.65], [35.0, -23.75], [34.47, -23.53], [34.25, -23.0], [34.35, -22.75], [34.25, -22.5], [34.35, -22.25], [34.32, -22.18], [33.97, -22.03], [33.75, -21.5]]]]}, "2026-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.47, -22.03], [33.25, -21.5], [33.47, -20.97], [34.0, -20.75], [34.25, -20.85], [34.5, -20.75], [34.75, -20.85], [35.0, -20.75], [35.53, -20.97], [35.7, -21.37], [36.0, -21.25], [36.53, -21.47], [36.68, -21.82], [37.03, -21.97], [37.18, -22.32], [37.25, -22.35], [37.5, -22.25], [38.03, -22.47], [38.25, -23.0], [38.15, -23.25], [38.25, -23.5], [38.15, -23.75], [38.18, -23.82], [38.53, -23.97], [38.75, -24.5], [38.53, -25.03], [38.0, -25.25], [37.47, -25.03], [37.32, -24.68], [37.25, -24.65], [37.0, -24.75], [36.75, -24.65], [36.5, -24.75], [35.97, -24.53], [35.82, -24.18], [35.47, -24.03], [35.32, -23.68], [35.25, -23.65], [35.0, -23.75], [34.47, -23.53], [34.25, -23.0], [34.35, -22.75], [34.25, -22.5], [34.35, -22.25], [34.32, -22.18], [34.25, -22.15], [34.0, -22.25], [33.47, -22.03]]]]}, "2026-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.47, -22.03], [33.25, -21.5], [33.47, -20.97], [34.0, -20.75], [34.25, -20.85], [34.5, -20.75], [34.75, -20.85], [35.0, -20.75], [35.53, -20.97], [35.7, -21.37], [36.0, -21.25], [36.53, -21.47], [36.68, -21.82], [37.03, -21.97], [37.18, -22.32], [37.25, -22.35], [37.5, -22.25], [38.03, -22.47], [38.25, -23.0], [38.15, -23.25], [38.25, -23.5], [38.15, -23.75], [38.18, -23.82], [38.53, -23.97], [38.75, -24.5], [38.53, -25.03], [38.0, -25.25], [37.47, -25.03], [37.32, -24.68], [37.25, -24.65], [37.0, -24.75], [36.75, -24.65], [36.5, -24.75], [35.97, -24.53], [35.82, -24.18], [35.47, -24.03], [35.32, -23.68], [35.25, -23.65], [35.0, -23.75], [34.47, -23.53], [34.25, -23.0], [34.35, -22.75], [34.25, -22.5], [34.35, -22.25], [34.32, -22.18], [34.25, -22.15], [34.0, -22.25], [33.47, -22.03]]]]}, "2026-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.0, -20.75], [34.53, -20.97], [34.75, -21.5], [34.53, -22.03], [34.0, -22.25], [33.47, -22.03], [33.25, -21.5], [33.47, -20.97], [34.0, -20.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.9817443531426875}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.735652143555648}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.144222655119734, 25.940385679214728, 26.445171610514308, 26.181305763938212, 26.10339762369796]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.33431777954104, 26.373801167805993, 26.877666727701865, 27.05909118652346, 26.10339762369796]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2300558011669724, 1.4715212047119892, 2.0574283856738744, 1.8494678538597369, 2.2497459874796277]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3478904425115843, 2.2619377612469975, 3.9817443531426875, 3.1481235344634797, 2.2497459874796277]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4817472039406512, 1.5041969471923413, 2.0082448882557946, 1.8162796078658063, 1.4712207184597965]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.660240768643142, 1.5921935321698566, 2.672254906204243, 2.144602150615832, 1.4712207184597965]}}