{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:53:10.031388", "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": "2024-Sep-01_to_2024-Sep-05_353.5_27.0"}, "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": 2024090000777}, "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": "September 01 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 05 2024"}, "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": 90396.75708827023}, "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", "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": 27.0}, "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": 353.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "353.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 351.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 357.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.75, 26.5], [-7.53, 27.03], [-7.18, 27.18], [-7.03, 27.53], [-6.5, 27.75], [-5.97, 27.53], [-5.82, 27.18], [-5.47, 27.03], [-5.25, 26.5], [-5.47, 25.97], [-5.82, 25.82], [-5.97, 25.47], [-6.5, 25.25], [-7.03, 25.47], [-7.18, 25.82], [-7.53, 25.97], [-7.75, 26.5]]]]}, "2024-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.53, 27.53], [-7.0, 27.75], [-6.75, 27.65], [-6.5, 27.75], [-5.97, 27.53], [-5.82, 27.18], [-5.75, 27.15], [-5.5, 27.25], [-4.97, 27.03], [-4.75, 26.5], [-4.97, 25.97], [-5.5, 25.75], [-5.75, 25.85], [-5.82, 25.82], [-5.97, 25.47], [-6.5, 25.25], [-7.03, 25.47], [-7.18, 25.82], [-7.53, 25.97], [-7.75, 26.5], [-7.65, 26.75], [-7.75, 27.0], [-7.53, 27.53]]]]}, "2024-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.75, 27.5], [-8.53, 28.03], [-8.0, 28.25], [-7.75, 28.15], [-7.5, 28.25], [-7.25, 28.15], [-7.0, 28.25], [-6.7, 28.12], [-6.53, 28.53], [-6.18, 28.68], [-6.03, 29.03], [-5.5, 29.25], [-5.25, 29.15], [-5.18, 29.18], [-5.03, 29.53], [-4.5, 29.75], [-4.25, 29.65], [-4.0, 29.75], [-3.47, 29.53], [-3.32, 29.18], [-3.25, 29.15], [-3.0, 29.25], [-2.47, 29.03], [-2.25, 28.5], [-2.47, 27.97], [-2.82, 27.82], [-2.97, 27.47], [-3.32, 27.32], [-3.47, 26.97], [-4.0, 26.75], [-4.25, 26.85], [-4.32, 26.82], [-4.47, 26.47], [-4.82, 26.32], [-4.97, 25.97], [-5.5, 25.75], [-5.75, 25.85], [-5.82, 25.82], [-5.97, 25.47], [-6.5, 25.25], [-7.03, 25.47], [-7.18, 25.82], [-7.25, 25.85], [-7.5, 25.75], [-8.03, 25.97], [-8.25, 26.5], [-8.12, 26.8], [-8.53, 26.97], [-8.75, 27.5]]]]}, "2024-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.75, 27.5], [-8.53, 28.03], [-8.0, 28.25], [-7.75, 28.15], [-7.5, 28.25], [-7.25, 28.15], [-7.0, 28.25], [-6.7, 28.12], [-6.53, 28.53], [-6.18, 28.68], [-6.03, 29.03], [-5.5, 29.25], [-5.25, 29.15], [-5.18, 29.18], [-5.03, 29.53], [-4.5, 29.75], [-4.25, 29.65], [-4.0, 29.75], [-3.47, 29.53], [-3.32, 29.18], [-3.25, 29.15], [-3.0, 29.25], [-2.47, 29.03], [-2.25, 28.5], [-2.47, 27.97], [-2.82, 27.82], [-2.97, 27.47], [-3.32, 27.32], [-3.47, 26.97], [-4.0, 26.75], [-4.25, 26.85], [-4.32, 26.82], [-4.47, 26.47], [-4.82, 26.32], [-4.97, 25.97], [-5.5, 25.75], [-5.75, 25.85], [-5.82, 25.82], [-5.97, 25.47], [-6.5, 25.25], [-7.03, 25.47], [-7.18, 25.82], [-7.25, 25.85], [-7.5, 25.75], [-8.03, 25.97], [-8.25, 26.5], [-8.12, 26.8], [-8.53, 26.97], [-8.75, 27.5]]]]}, "2024-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.75, 27.5], [-8.53, 28.03], [-8.0, 28.25], [-7.75, 28.15], [-7.5, 28.25], [-7.25, 28.15], [-7.0, 28.25], [-6.7, 28.12], [-6.53, 28.53], [-6.18, 28.68], [-6.03, 29.03], [-5.5, 29.25], [-5.25, 29.15], [-5.18, 29.18], [-5.03, 29.53], [-4.5, 29.75], [-4.25, 29.65], [-4.0, 29.75], [-3.47, 29.53], [-3.32, 29.18], [-3.25, 29.15], [-3.0, 29.25], [-2.47, 29.03], [-2.25, 28.5], [-2.47, 27.97], [-2.82, 27.82], [-2.97, 27.47], [-3.32, 27.32], [-3.47, 26.97], [-4.0, 26.75], [-4.25, 26.85], [-4.32, 26.82], [-4.47, 26.47], [-4.82, 26.32], [-4.97, 25.97], [-5.5, 25.75], [-5.75, 25.85], [-5.82, 25.82], [-5.97, 25.47], [-6.5, 25.25], [-7.03, 25.47], [-7.18, 25.82], [-7.25, 25.85], [-7.5, 25.75], [-8.03, 25.97], [-8.25, 26.5], [-8.12, 26.8], [-8.53, 26.97], [-8.75, 27.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.224992253519133}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.070912779109907}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [38.12494303385415, 37.73514854794456, 37.06870950255734, 37.347765358048264, 36.727555847167935]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [38.46901855468752, 38.084502156575525, 38.39395167032882, 38.87269236246749, 37.74348093668624]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.12218084744718, 2.8443824786419976, 2.8754190606064807, 3.3832255539953615, 2.9919859947655976]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.380243007870604, 3.0929407755323837, 3.5810276419463207, 4.224992253519133, 3.80709688727012]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3125265957788084, 1.1804520885234868, 1.319569771139928, 1.5250226706328167, 1.3307039908079434]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4882577946209776, 1.2294167323361158, 1.5094834450608003, 1.869471021859951, 1.6469954646837281]}}