{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:48.948338", "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-Oct-11_to_2020-Oct-14_355.0_25.0"}, "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": 2020100001673}, "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": "October 11 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 14 2020"}, "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": 58526.98984907594}, "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": ["Algeria", "Mali", "Mauritania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 25.0}, "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": 355.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "355.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 351.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 356.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 25.5], [-9.03, 26.03], [-8.5, 26.25], [-8.25, 26.15], [-8.0, 26.25], [-7.75, 26.15], [-7.5, 26.25], [-7.25, 26.15], [-7.18, 26.18], [-7.03, 26.53], [-6.5, 26.75], [-6.0, 26.54], [-5.5, 26.75], [-4.97, 26.53], [-4.75, 26.0], [-4.85, 25.75], [-4.82, 25.68], [-4.47, 25.53], [-4.25, 25.0], [-4.47, 24.47], [-4.82, 24.32], [-4.97, 23.97], [-5.5, 23.75], [-6.03, 23.97], [-6.2, 24.38], [-6.5, 24.25], [-6.75, 24.35], [-7.0, 24.25], [-7.25, 24.35], [-7.5, 24.25], [-7.75, 24.35], [-8.0, 24.25], [-8.53, 24.47], [-8.68, 24.82], [-9.03, 24.97], [-9.25, 25.5]]]]}, "2020-10-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 25.5], [-9.03, 26.03], [-8.5, 26.25], [-8.25, 26.15], [-8.0, 26.25], [-7.75, 26.15], [-7.5, 26.25], [-7.25, 26.15], [-7.18, 26.18], [-7.03, 26.53], [-6.5, 26.75], [-6.0, 26.54], [-5.68, 26.68], [-5.53, 27.03], [-5.18, 27.18], [-5.03, 27.53], [-4.5, 27.75], [-4.25, 27.65], [-4.0, 27.75], [-3.47, 27.53], [-3.25, 27.0], [-3.47, 26.47], [-3.82, 26.32], [-3.97, 25.97], [-4.32, 25.82], [-4.46, 25.5], [-4.25, 25.0], [-4.47, 24.47], [-4.82, 24.32], [-4.97, 23.97], [-5.5, 23.75], [-6.03, 23.97], [-6.2, 24.38], [-6.5, 24.25], [-6.75, 24.35], [-7.0, 24.25], [-7.25, 24.35], [-7.5, 24.25], [-7.75, 24.35], [-8.0, 24.25], [-8.53, 24.47], [-8.68, 24.82], [-9.03, 24.97], [-9.25, 25.5]]]]}, "2020-10-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.25, 25.5], [-9.03, 26.03], [-8.5, 26.25], [-8.25, 26.15], [-8.0, 26.25], [-7.75, 26.15], [-7.5, 26.25], [-7.25, 26.15], [-7.18, 26.18], [-7.03, 26.53], [-6.5, 26.75], [-6.0, 26.54], [-5.68, 26.68], [-5.53, 27.03], [-5.18, 27.18], [-5.03, 27.53], [-4.5, 27.75], [-4.25, 27.65], [-4.0, 27.75], [-3.47, 27.53], [-3.25, 27.0], [-3.47, 26.47], [-3.82, 26.32], [-3.97, 25.97], [-4.32, 25.82], [-4.46, 25.5], [-4.25, 25.0], [-4.47, 24.47], [-4.82, 24.32], [-4.97, 23.97], [-5.5, 23.75], [-6.03, 23.97], [-6.2, 24.38], [-6.5, 24.25], [-6.75, 24.35], [-7.0, 24.25], [-7.25, 24.35], [-7.5, 24.25], [-7.75, 24.35], [-8.0, 24.25], [-8.53, 24.47], [-8.68, 24.82], [-9.03, 24.97], [-9.25, 25.5]]]]}, "2020-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.03, 24.47], [-8.25, 25.0], [-8.03, 25.53], [-7.5, 25.75], [-7.25, 25.65], [-7.0, 25.75], [-6.75, 25.65], [-6.68, 25.68], [-6.53, 26.03], [-6.0, 26.25], [-5.75, 26.15], [-5.68, 26.18], [-5.65, 26.25], [-5.75, 26.5], [-5.53, 27.03], [-5.18, 27.18], [-5.03, 27.53], [-4.5, 27.75], [-4.25, 27.65], [-4.0, 27.75], [-3.47, 27.53], [-3.25, 27.0], [-3.47, 26.47], [-3.82, 26.32], [-3.97, 25.97], [-4.32, 25.82], [-4.46, 25.5], [-4.25, 25.0], [-4.47, 24.47], [-4.82, 24.32], [-4.97, 23.97], [-5.5, 23.75], [-6.03, 23.97], [-6.2, 24.38], [-6.5, 24.25], [-6.75, 24.35], [-7.0, 24.25], [-7.25, 24.35], [-7.5, 24.25], [-8.03, 24.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.707654155798991}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.060771919968749}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.730743551612363, 31.59754667808255, 31.32375398618916, 31.526008920660445]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.25511958740577, 33.039135922703565, 33.5533038396415, 33.41771969789045]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.970571994388809, 4.08988206667279, 4.081834852117879, 4.090738393304321]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.407833362270935, 4.707654155798991, 4.513007456131959, 4.406111038140921]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5210664642617795, 1.5564721448585659, 1.5428866869233946, 1.5824582587179128]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6664048335975696, 1.7400266191390643, 1.8040305918009207, 1.8106092867194021]}}