{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:34:03.044325", "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": "2023-Jan-18_to_2023-Jan-21_38.0_-3.5"}, "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": 2023010002356}, "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 18 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 21 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 80297.77317655449}, "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", "Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-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": -3.5}, "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": 38.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.25, -1.5], [35.47, -0.97], [35.82, -0.82], [35.97, -0.47], [36.5, -0.25], [37.03, -0.47], [37.25, -1.0], [37.15, -1.25], [37.18, -1.32], [37.25, -1.35], [37.5, -1.25], [37.75, -1.35], [38.0, -1.25], [38.53, -1.47], [38.75, -2.0], [38.54, -2.5], [38.68, -2.82], [39.03, -2.97], [39.25, -3.5], [39.03, -4.03], [38.5, -4.25], [38.25, -4.15], [38.0, -4.25], [37.75, -4.15], [37.5, -4.25], [37.25, -4.15], [37.0, -4.25], [36.47, -4.03], [36.32, -3.68], [35.97, -3.53], [35.8, -3.12], [35.5, -3.25], [34.97, -3.03], [34.75, -2.5], [34.97, -1.97], [35.32, -1.82], [35.35, -1.75], [35.25, -1.5]]]]}, "2023-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, -0.47], [35.0, -0.25], [35.25, -0.35], [35.5, -0.25], [35.75, -0.35], [36.0, -0.25], [36.25, -0.35], [36.5, -0.25], [37.03, -0.47], [37.25, -1.0], [37.15, -1.25], [37.18, -1.32], [37.25, -1.35], [37.5, -1.25], [37.75, -1.35], [38.0, -1.25], [38.53, -1.47], [38.75, -2.0], [38.54, -2.5], [38.68, -2.82], [39.03, -2.97], [39.25, -3.5], [39.03, -4.03], [38.5, -4.25], [38.25, -4.15], [38.0, -4.25], [37.75, -4.15], [37.5, -4.25], [37.25, -4.15], [37.0, -4.25], [36.47, -4.03], [36.32, -3.68], [36.25, -3.65], [36.0, -3.75], [35.75, -3.65], [35.5, -3.75], [34.97, -3.53], [34.75, -3.0], [34.85, -2.75], [34.75, -2.5], [34.88, -2.2], [34.47, -2.03], [34.25, -1.5], [34.35, -1.25], [34.25, -1.0], [34.47, -0.47]]]]}, "2023-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, -0.47], [35.0, -0.25], [35.25, -0.35], [35.5, -0.25], [35.75, -0.35], [36.0, -0.25], [36.25, -0.35], [36.5, -0.25], [37.03, -0.47], [37.25, -1.0], [37.15, -1.25], [37.18, -1.32], [37.25, -1.35], [37.5, -1.25], [37.75, -1.35], [38.0, -1.25], [38.53, -1.47], [38.75, -2.0], [38.54, -2.5], [38.68, -2.82], [39.03, -2.97], [39.25, -3.5], [39.03, -4.03], [38.5, -4.25], [38.25, -4.15], [38.0, -4.25], [37.75, -4.15], [37.5, -4.25], [37.25, -4.15], [37.0, -4.25], [36.47, -4.03], [36.32, -3.68], [36.25, -3.65], [36.0, -3.75], [35.75, -3.65], [35.5, -3.75], [34.97, -3.53], [34.75, -3.0], [34.85, -2.75], [34.75, -2.5], [34.88, -2.2], [34.47, -2.03], [34.25, -1.5], [34.35, -1.25], [34.25, -1.0], [34.47, -0.47]]]]}, "2023-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, -0.47], [35.0, -0.25], [35.25, -0.35], [35.5, -0.25], [35.75, -0.35], [36.0, -0.25], [36.53, -0.47], [36.75, -1.0], [36.65, -1.25], [36.68, -1.32], [36.75, -1.35], [37.0, -1.25], [37.53, -1.47], [37.68, -1.82], [38.03, -1.97], [38.25, -2.5], [38.13, -2.8], [38.25, -2.85], [38.5, -2.75], [39.03, -2.97], [39.25, -3.5], [39.03, -4.03], [38.5, -4.25], [38.25, -4.15], [38.0, -4.25], [37.75, -4.15], [37.5, -4.25], [37.25, -4.15], [37.0, -4.25], [36.47, -4.03], [36.3, -3.62], [36.0, -3.75], [35.75, -3.65], [35.5, -3.75], [34.97, -3.53], [34.75, -3.0], [34.85, -2.75], [34.75, -2.5], [34.88, -2.2], [34.47, -2.03], [34.25, -1.5], [34.35, -1.25], [34.25, -1.0], [34.47, -0.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.614662663704621}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.7931119591731646}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.553249363441466, 24.104974436823397, 24.132585014001165, 24.199705163667772]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.406075809919912, 30.150325647561033, 30.511310937648545, 30.431842440268667]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6286904277844012, 1.8361379316576438, 1.8376242863428358, 1.827291547872656]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2440272655704234, 2.479133096643409, 2.4973334608867503, 2.614662663704621]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4983348113602635, 1.6219370769441643, 1.6023686618836879, 1.5321721022948573]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9306585829921716, 2.208594602792439, 2.2778450495704665, 2.125380820309677]}}