{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:33.375203", "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": "2020-Apr-04_to_2020-Apr-09_357.5_5.5"}, "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": 2020040001246}, "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 04 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 09 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 55294.45252824212}, "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": ["C\u00f4te d'Ivoire", "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": 5.5}, "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": 357.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "357.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 356.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 359.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.5, 6.25], [-2.97, 6.03], [-2.75, 5.5], [-2.97, 4.97], [-3.5, 4.75], [-4.03, 4.97], [-4.25, 5.5], [-4.03, 6.03], [-3.5, 6.25]]]]}, "2020-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.03, 4.97], [-4.25, 5.5], [-4.03, 6.03], [-3.5, 6.25], [-3.25, 6.15], [-3.0, 6.25], [-2.75, 6.15], [-2.68, 6.18], [-2.54, 6.5], [-2.75, 7.0], [-2.53, 7.53], [-2.18, 7.68], [-2.15, 7.75], [-2.25, 8.0], [-2.03, 8.53], [-1.5, 8.75], [-0.97, 8.53], [-0.82, 8.18], [-0.47, 8.03], [-0.25, 7.5], [-0.35, 7.25], [-0.25, 7.0], [-0.35, 6.75], [-0.32, 6.68], [0.03, 6.53], [0.25, 6.0], [0.03, 5.47], [-0.5, 5.25], [-0.75, 5.35], [-0.82, 5.32], [-0.97, 4.97], [-1.5, 4.75], [-1.75, 4.85], [-2.0, 4.75], [-2.25, 4.85], [-2.5, 4.75], [-2.75, 4.85], [-3.0, 4.75], [-3.25, 4.85], [-3.5, 4.75], [-4.03, 4.97]]]]}, "2020-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.03, 4.97], [-4.25, 5.5], [-4.03, 6.03], [-3.5, 6.25], [-3.25, 6.15], [-3.0, 6.25], [-2.75, 6.15], [-2.68, 6.18], [-2.54, 6.5], [-2.75, 7.0], [-2.53, 7.53], [-2.18, 7.68], [-2.15, 7.75], [-2.25, 8.0], [-2.03, 8.53], [-1.5, 8.75], [-0.97, 8.53], [-0.82, 8.18], [-0.47, 8.03], [-0.25, 7.5], [-0.35, 7.25], [-0.25, 7.0], [-0.35, 6.75], [-0.32, 6.68], [0.03, 6.53], [0.25, 6.0], [0.03, 5.47], [-0.32, 5.32], [-0.47, 4.97], [-1.0, 4.75], [-1.25, 4.85], [-1.5, 4.75], [-1.75, 4.85], [-2.0, 4.75], [-2.25, 4.85], [-2.5, 4.75], [-2.75, 4.85], [-3.0, 4.75], [-3.25, 4.85], [-3.5, 4.75], [-4.03, 4.97]]]]}, "2020-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.03, 4.97], [-4.25, 5.5], [-4.03, 6.03], [-3.5, 6.25], [-3.25, 6.15], [-3.0, 6.25], [-2.75, 6.15], [-2.68, 6.18], [-2.54, 6.5], [-2.75, 7.0], [-2.53, 7.53], [-2.18, 7.68], [-2.15, 7.75], [-2.25, 8.0], [-2.03, 8.53], [-1.5, 8.75], [-0.97, 8.53], [-0.82, 8.18], [-0.47, 8.03], [-0.25, 7.5], [-0.35, 7.25], [-0.25, 7.0], [-0.35, 6.75], [-0.32, 6.68], [0.03, 6.53], [0.25, 6.0], [0.03, 5.47], [-0.32, 5.32], [-0.47, 4.97], [-1.0, 4.75], [-1.25, 4.85], [-1.5, 4.75], [-1.75, 4.85], [-2.0, 4.75], [-2.25, 4.85], [-2.5, 4.75], [-2.75, 4.85], [-3.0, 4.75], [-3.25, 4.85], [-3.5, 4.75], [-4.03, 4.97]]]]}, "2020-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.03, 4.97], [-3.25, 5.5], [-3.03, 6.03], [-2.5, 6.25], [-2.25, 6.15], [-2.18, 6.18], [-2.03, 6.53], [-1.5, 6.75], [-1.25, 6.65], [-1.0, 6.75], [-0.75, 6.65], [-0.5, 6.75], [0.03, 6.53], [0.25, 6.0], [0.03, 5.47], [-0.32, 5.32], [-0.47, 4.97], [-1.0, 4.75], [-1.25, 4.85], [-1.5, 4.75], [-1.75, 4.85], [-2.0, 4.75], [-2.25, 4.85], [-2.5, 4.75], [-3.03, 4.97]]]]}, "2020-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.5, 6.75], [0.03, 6.53], [0.25, 6.0], [0.03, 5.47], [-0.32, 5.32], [-0.47, 4.97], [-1.0, 4.75], [-1.53, 4.97], [-1.75, 5.5], [-1.53, 6.03], [-1.18, 6.18], [-1.03, 6.53], [-0.5, 6.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9628880396946329}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4788314683410984}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.158376160870205, 29.202792937667425, 29.02896828247708, 28.975341912881504, 28.717077851320596, 28.371210996109482]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.158376160870205, 30.969571203780447, 30.842168722862425, 30.633733673000222, 29.258092951112246, 28.81145734683713]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0093300097663018, 1.5917237858604816, 1.4384112026598517, 1.402527892437168, 1.639600957584264, 1.2418188606292517]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.0093300097663018, 1.826485459293167, 1.8240486920229841, 1.7017027879876423, 1.9628880396946329, 1.3131091748098243]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3390521800321826, 1.7326623307094873, 1.5603836306932208, 1.506807442607782, 1.8282078775279829, 1.3893475852470871]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3390521800321826, 2.090952375038113, 2.2599434566923025, 1.7037119383264316, 2.18712068190888, 1.4488086111084693]}}