{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:54:40.689242", "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-Jul-25_to_2023-Jul-28_357.0_17.0"}, "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": 2023070002580}, "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": "July 25 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 28 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": 120981.57388193224}, "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": ["Mali"]}, "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": 17.0}, "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": 357.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "357.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 354.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 361.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-1.75, 18.15], [-1.68, 18.18], [-1.53, 18.53], [-1.18, 18.68], [-1.03, 19.03], [-0.68, 19.18], [-0.53, 19.53], [0.0, 19.75], [0.53, 19.53], [0.68, 19.18], [0.75, 19.15], [1.0, 19.25], [1.53, 19.03], [1.75, 18.5], [1.63, 18.2], [2.03, 18.03], [2.25, 17.5], [2.03, 16.97], [1.5, 16.75], [1.25, 16.85], [1.0, 16.75], [0.75, 16.85], [0.68, 16.82], [0.53, 16.47], [0.18, 16.32], [0.03, 15.97], [-0.5, 15.75], [-0.75, 15.85], [-1.0, 15.75], [-1.25, 15.85], [-1.5, 15.75], [-2.0, 15.96], [-2.5, 15.75], [-2.75, 15.85], [-3.0, 15.75], [-3.25, 15.85], [-3.5, 15.75], [-3.75, 15.85], [-4.0, 15.75], [-4.5, 15.96], [-5.0, 15.75], [-5.25, 15.85], [-5.5, 15.75], [-6.03, 15.97], [-6.25, 16.5], [-6.15, 16.75], [-6.25, 17.0], [-6.03, 17.53], [-5.5, 17.75], [-5.25, 17.65], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-4.25, 17.65], [-4.18, 17.68], [-4.03, 18.03], [-3.5, 18.25], [-3.25, 18.15], [-3.0, 18.25], [-2.75, 18.15], [-2.5, 18.25], [-2.25, 18.15], [-2.0, 18.25], [-1.75, 18.15]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.5, 16.25], [-4.029999999999973, 16.47], [-4.25, 17.0], [-4.029999999999973, 17.53], [-3.5, 17.75], [-3.25, 17.65], [-3.0, 17.75], [-2.75, 17.65], [-2.680000000000007, 17.68], [-2.5299999999999727, 18.03], [-2.0, 18.25], [-1.75, 18.15], [-1.5, 18.25], [-1.25, 18.15], [-1.0, 18.25], [-0.4700000000000273, 18.03], [-0.25, 17.5], [-0.4700000000000273, 16.97], [-1.0, 16.75], [-1.25, 16.85], [-1.5, 16.75], [-1.75, 16.85], [-1.8199999999999932, 16.82], [-1.9700000000000273, 16.47], [-2.5, 16.25], [-2.75, 16.35], [-3.0, 16.25], [-3.25, 16.35], [-3.5, 16.25]]]]}, "2023-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.25, 17.0], [-6.029999999999973, 17.53], [-5.5, 17.75], [-5.25, 17.65], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-4.25, 17.65], [-4.180000000000007, 17.68], [-4.029999999999973, 18.03], [-3.5, 18.25], [-3.25, 18.15], [-3.0, 18.25], [-2.75, 18.15], [-2.5, 18.25], [-2.25, 18.15], [-2.0, 18.25], [-1.75, 18.15], [-1.6800000000000068, 18.18], [-1.5299999999999727, 18.53], [-1.1800000000000068, 18.68], [-1.0299999999999727, 19.03], [-0.6800000000000068, 19.18], [-0.5299999999999727, 19.53], [0.0, 19.75], [0.5299999999999727, 19.53], [0.6800000000000068, 19.18], [0.75, 19.15], [1.0, 19.25], [1.5299999999999727, 19.03], [1.75, 18.5], [1.6299999999999955, 18.2], [2.0299999999999727, 18.03], [2.25, 17.5], [2.0299999999999727, 16.97], [1.5, 16.75], [1.25, 16.85], [1.0, 16.75], [0.75, 16.85], [0.6800000000000068, 16.82], [0.5299999999999727, 16.47], [0.18000000000000682, 16.32], [0.029999999999972715, 15.97], [-0.5, 15.75], [-0.75, 15.85], [-1.0, 15.75], [-1.25, 15.85], [-1.5, 15.75], [-2.0, 15.96], [-2.5, 15.75], [-2.75, 15.85], [-3.0, 15.75], [-3.25, 15.85], [-3.5, 15.75], [-3.75, 15.85], [-4.0, 15.75], [-4.5, 15.96], [-5.0, 15.75], [-5.25, 15.85], [-5.5, 15.75], [-6.029999999999973, 15.97], [-6.25, 16.5], [-6.149999999999977, 16.75], [-6.25, 17.0]]]]}, "2023-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.25, 17.0], [-6.029999999999973, 17.53], [-5.5, 17.75], [-5.25, 17.65], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-4.25, 17.65], [-4.180000000000007, 17.68], [-4.029999999999973, 18.03], [-3.5, 18.25], [-3.25, 18.15], [-3.0, 18.25], [-2.75, 18.15], [-2.5, 18.25], [-2.25, 18.15], [-2.0, 18.25], [-1.75, 18.15], [-1.6800000000000068, 18.18], [-1.5299999999999727, 18.53], [-1.1800000000000068, 18.68], [-1.0299999999999727, 19.03], [-0.6800000000000068, 19.18], [-0.5299999999999727, 19.53], [0.0, 19.75], [0.5299999999999727, 19.53], [0.6800000000000068, 19.18], [0.75, 19.15], [1.0, 19.25], [1.5299999999999727, 19.03], [1.75, 18.5], [1.6299999999999955, 18.2], [2.0299999999999727, 18.03], [2.25, 17.5], [2.0299999999999727, 16.97], [1.5, 16.75], [1.25, 16.85], [1.0, 16.75], [0.75, 16.85], [0.6800000000000068, 16.82], [0.5299999999999727, 16.47], [0.18000000000000682, 16.32], [0.029999999999972715, 15.97], [-0.5, 15.75], [-0.75, 15.85], [-1.0, 15.75], [-1.25, 15.85], [-1.5, 15.75], [-2.0, 15.96], [-2.5, 15.75], [-2.75, 15.85], [-3.0, 15.75], [-3.25, 15.85], [-3.5, 15.75], [-3.75, 15.85], [-4.0, 15.75], [-4.5, 15.96], [-5.0, 15.75], [-5.25, 15.85], [-5.5, 15.75], [-6.029999999999973, 15.97], [-6.25, 16.5], [-6.149999999999977, 16.75], [-6.25, 17.0]]]]}, "2023-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.25, 17.0], [-6.029999999999973, 17.53], [-5.5, 17.75], [-5.25, 17.65], [-5.0, 17.75], [-4.75, 17.65], [-4.5, 17.75], [-4.25, 17.65], [-4.180000000000007, 17.68], [-4.029999999999973, 18.03], [-3.5, 18.25], [-3.25, 18.15], [-3.0, 18.25], [-2.75, 18.15], [-2.5, 18.25], [-2.25, 18.15], [-2.0, 18.25], [-1.75, 18.15], [-1.6800000000000068, 18.18], [-1.5299999999999727, 18.53], [-1.1800000000000068, 18.68], [-1.0299999999999727, 19.03], [-0.6800000000000068, 19.18], [-0.5299999999999727, 19.53], [0.0, 19.75], [0.5299999999999727, 19.53], [0.6800000000000068, 19.18], [0.75, 19.15], [1.0, 19.25], [1.5299999999999727, 19.03], [1.75, 18.5], [1.6299999999999955, 18.2], [2.0299999999999727, 18.03], [2.25, 17.5], [2.0299999999999727, 16.97], [1.5, 16.75], [1.25, 16.85], [1.0, 16.75], [0.75, 16.85], [0.6800000000000068, 16.82], [0.5299999999999727, 16.47], [0.18000000000000682, 16.32], [0.029999999999972715, 15.97], [-0.5, 15.75], [-0.75, 15.85], [-1.0, 15.75], [-1.25, 15.85], [-1.5, 15.75], [-2.0, 15.96], [-2.5, 15.75], [-2.75, 15.85], [-3.0, 15.75], [-3.25, 15.85], [-3.5, 15.75], [-3.75, 15.85], [-4.0, 15.75], [-4.5, 15.96], [-5.0, 15.75], [-5.25, 15.85], [-5.5, 15.75], [-6.029999999999973, 15.97], [-6.25, 16.5], [-6.149999999999977, 16.75], [-6.25, 17.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.185882889472055}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.089598004124856}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [35.15521739953721, 35.19288240840825, 35.63143983340365, 35.10865383480581]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.60721413880418, 36.02636106905345, 36.63819915751458, 36.22038285244065]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.712052549827869, 2.9720742650950114, 3.3973116750033188, 2.9749171631356357]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8325186493409547, 3.521482749166694, 4.185882889472055, 3.415469266083278]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4055656756228168, 1.5216630154250435, 1.7198249234406413, 1.5559998222586235]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.471033002767388, 1.7512764442244215, 2.097556102167766, 1.7756782921915821]}}