{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:28.384510", "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": "2025-Jan-22_to_2025-Jan-26_0.0_13.0"}, "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": 2025010002038}, "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": "January 22 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 26 2025"}, "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": 51370.446469077455}, "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": ["Burkina Faso", "Ghana"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-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": 13.0}, "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": 360.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "0.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 358.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 360.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 12.03], [-1.62, 12.2], [-1.75, 12.5], [-1.53, 13.03], [-1.12, 13.2], [-1.25, 13.5], [-1.03, 14.03], [-0.5, 14.25], [-0.25, 14.15], [0.0, 14.25], [0.53, 14.03], [0.68, 13.68], [1.03, 13.53], [1.25, 13.0], [1.15, 12.75], [1.25, 12.5], [1.03, 11.97], [0.5, 11.75], [0.25, 11.85], [0.0, 11.75], [-0.25, 11.85], [-0.37, 11.8], [-0.25, 11.5], [-0.35, 11.25], [-0.3, 11.12], [0.0, 11.25], [0.53, 11.03], [0.75, 10.5], [0.53, 9.97], [0.0, 9.75], [-0.53, 9.97], [-0.7, 10.38], [-1.0, 10.25], [-1.25, 10.35], [-1.5, 10.25], [-2.03, 10.47], [-2.25, 11.0], [-2.15, 11.25], [-2.25, 11.5], [-2.03, 12.03]]]]}, "2025-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 12.03], [-1.68, 12.18], [-1.65, 12.25], [-1.75, 12.5], [-1.53, 13.03], [-1.18, 13.18], [-1.15, 13.25], [-1.25, 13.5], [-1.03, 14.03], [-0.5, 14.25], [-0.25, 14.15], [0.0, 14.25], [0.53, 14.03], [0.68, 13.68], [1.03, 13.53], [1.25, 13.0], [1.15, 12.75], [1.25, 12.5], [1.03, 11.97], [0.5, 11.75], [0.25, 11.85], [0.18, 11.82], [0.03, 11.47], [-0.32, 11.32], [-0.35, 11.25], [-0.32, 11.18], [-0.25, 11.15], [0.0, 11.25], [0.53, 11.03], [0.75, 10.5], [0.53, 9.97], [0.0, 9.75], [-0.25, 9.85], [-0.5, 9.75], [-1.03, 9.97], [-1.18, 10.32], [-1.25, 10.35], [-1.5, 10.25], [-2.03, 10.47], [-2.25, 11.0], [-2.15, 11.25], [-2.25, 11.5], [-2.03, 12.03]]]]}, "2025-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 12.03], [-1.68, 12.18], [-1.65, 12.25], [-1.75, 12.5], [-1.53, 13.03], [-1.18, 13.18], [-1.15, 13.25], [-1.25, 13.5], [-1.03, 14.03], [-0.5, 14.25], [-0.25, 14.15], [0.0, 14.25], [0.53, 14.03], [0.68, 13.68], [1.03, 13.53], [1.25, 13.0], [1.15, 12.75], [1.25, 12.5], [1.03, 11.97], [0.5, 11.75], [0.25, 11.85], [0.18, 11.82], [0.03, 11.47], [-0.32, 11.32], [-0.35, 11.25], [-0.32, 11.18], [-0.25, 11.15], [0.0, 11.25], [0.53, 11.03], [0.75, 10.5], [0.53, 9.97], [0.0, 9.75], [-0.25, 9.85], [-0.5, 9.75], [-1.03, 9.97], [-1.18, 10.32], [-1.25, 10.35], [-1.5, 10.25], [-2.03, 10.47], [-2.25, 11.0], [-2.15, 11.25], [-2.25, 11.5], [-2.03, 12.03]]]]}, "2025-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 12.03], [-1.68, 12.18], [-1.65, 12.25], [-1.75, 12.5], [-1.53, 13.03], [-1.18, 13.18], [-1.03, 13.53], [-0.68, 13.68], [-0.53, 14.03], [0.0, 14.25], [0.53, 14.03], [0.68, 13.68], [1.03, 13.53], [1.25, 13.0], [1.15, 12.75], [1.25, 12.5], [1.03, 11.97], [0.5, 11.75], [0.25, 11.85], [0.18, 11.82], [0.03, 11.47], [-0.32, 11.32], [-0.35, 11.25], [-0.32, 11.18], [-0.25, 11.15], [0.0, 11.25], [0.53, 11.03], [0.75, 10.5], [0.53, 9.97], [0.0, 9.75], [-0.25, 9.85], [-0.5, 9.75], [-1.03, 9.97], [-1.18, 10.32], [-1.25, 10.35], [-1.5, 10.25], [-2.03, 10.47], [-2.25, 11.0], [-2.15, 11.25], [-2.25, 11.5], [-2.03, 12.03]]]]}, "2025-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.25, 11.5], [-2.03, 12.03], [-1.68, 12.18], [-1.65, 12.25], [-1.75, 12.5], [-1.53, 13.03], [-1.18, 13.18], [-1.03, 13.53], [-0.68, 13.68], [-0.53, 14.03], [0.0, 14.25], [0.53, 14.03], [0.68, 13.68], [1.03, 13.53], [1.25, 13.0], [1.15, 12.75], [1.25, 12.5], [1.03, 11.97], [0.5, 11.75], [0.25, 11.85], [0.18, 11.82], [0.03, 11.47], [-0.32, 11.32], [-0.35, 11.25], [-0.25, 11.0], [-0.47, 10.47], [-1.0, 10.25], [-1.53, 10.47], [-1.68, 10.82], [-2.03, 10.97], [-2.25, 11.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.3194548395840116}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.863280819836222}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.40447622445913, 29.4956095377604, 28.84812631046077, 28.922386423746786, 28.99193598429366]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.861006673177087, 30.485192871093773, 29.90868275960287, 30.174131011962913, 30.072827911376976]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.5906656305589966, 3.4544905752539887, 2.7026328085113223, 2.5917789248583496, 2.9070099068109263]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.0134749706763273, 4.3194548395840116, 3.5253002394488817, 3.3102942874825203, 3.231913066031723]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3419540585882632, 1.795898917653756, 1.4120497758968242, 1.3472183214863123, 1.432792749220503]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.443295153653778, 2.0706492116920345, 1.7003260542860559, 1.597189619541919, 1.5237823299132023]}}