{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:48.355418", "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": "2022-Jul-10_to_2022-Jul-16_5.5_24.0"}, "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": 2022070002035}, "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 10 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 16 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 76223.7805605716}, "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"]}, "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": 24.0}, "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": 5.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "5.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 3.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 7.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[2.85, 25.25], [2.75, 25.5], [2.97, 26.03], [3.5, 26.25], [4.03, 26.03], [4.25, 25.5], [4.15, 25.25], [4.18, 25.18], [4.25, 25.15], [4.32, 25.18], [4.47, 25.53], [5.0, 25.75], [5.5, 25.54], [5.82, 25.68], [5.97, 26.03], [6.5, 26.25], [7.03, 26.03], [7.25, 25.5], [7.13, 25.2], [7.53, 25.03], [7.75, 24.5], [7.53, 23.97], [7.0, 23.75], [6.75, 23.85], [6.68, 23.82], [6.53, 23.47], [6.0, 23.25], [5.75, 23.35], [5.68, 23.32], [5.65, 23.25], [5.68, 23.18], [6.03, 23.03], [6.25, 22.5], [6.15, 22.25], [6.25, 22.0], [6.03, 21.47], [5.5, 21.25], [4.97, 21.47], [4.82, 21.82], [4.47, 21.97], [4.32, 22.32], [3.97, 22.47], [3.82, 22.82], [3.75, 22.85], [3.5, 22.75], [2.97, 22.97], [2.75, 23.5], [2.85, 23.75], [2.75, 24.0], [2.96, 24.5], [2.75, 25.0], [2.85, 25.25]]]]}}, "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": {"2022-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.5, 23.75], [5.97, 23.97], [5.75, 24.5], [5.97, 25.03], [6.5, 25.25], [6.75, 25.15], [7.0, 25.25], [7.53, 25.03], [7.75, 24.5], [7.53, 23.97], [7.0, 23.75], [6.75, 23.85], [6.5, 23.75]]]]}, "2022-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.25, 23.0], [4.46, 23.5], [4.25, 24.0], [4.47, 24.53], [4.82, 24.68], [4.97, 25.03], [5.32, 25.18], [5.47, 25.53], [5.82, 25.68], [5.97, 26.03], [6.5, 26.25], [7.03, 26.03], [7.25, 25.5], [7.13, 25.2], [7.53, 25.03], [7.75, 24.5], [7.53, 23.97], [7.0, 23.75], [6.75, 23.85], [6.68, 23.82], [6.53, 23.47], [6.0, 23.25], [5.75, 23.35], [5.63, 23.3], [5.68, 23.18], [6.03, 23.03], [6.25, 22.5], [6.15, 22.25], [6.25, 22.0], [6.03, 21.47], [5.5, 21.25], [4.97, 21.47], [4.82, 21.82], [4.47, 21.97], [4.25, 22.5], [4.35, 22.75], [4.25, 23.0]]]]}, "2022-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.75, 24.0], [2.96, 24.5], [2.75, 25.0], [2.85, 25.25], [2.75, 25.5], [2.97, 26.03], [3.5, 26.25], [4.03, 26.03], [4.25, 25.5], [4.15, 25.25], [4.18, 25.18], [4.25, 25.15], [4.32, 25.18], [4.47, 25.53], [5.0, 25.75], [5.5, 25.54], [5.82, 25.68], [5.97, 26.03], [6.5, 26.25], [7.03, 26.03], [7.25, 25.5], [7.13, 25.2], [7.53, 25.03], [7.75, 24.5], [7.53, 23.97], [7.0, 23.75], [6.75, 23.85], [6.68, 23.82], [6.53, 23.47], [6.0, 23.25], [5.75, 23.35], [5.68, 23.32], [5.65, 23.25], [5.68, 23.18], [6.03, 23.03], [6.25, 22.5], [6.15, 22.25], [6.25, 22.0], [6.03, 21.47], [5.5, 21.25], [4.97, 21.47], [4.82, 21.82], [4.47, 21.97], [4.32, 22.32], [3.97, 22.47], [3.82, 22.82], [3.75, 22.85], [3.5, 22.75], [2.97, 22.97], [2.75, 23.5], [2.85, 23.75], [2.75, 24.0]]]]}, "2022-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.75, 24.0], [2.96, 24.5], [2.75, 25.0], [2.85, 25.25], [2.75, 25.5], [2.97, 26.03], [3.5, 26.25], [4.03, 26.03], [4.25, 25.5], [4.15, 25.25], [4.18, 25.18], [4.25, 25.15], [4.32, 25.18], [4.47, 25.53], [5.0, 25.75], [5.5, 25.54], [5.82, 25.68], [5.97, 26.03], [6.5, 26.25], [7.03, 26.03], [7.25, 25.5], [7.03, 24.97], [6.68, 24.82], [6.65, 24.75], [6.75, 24.5], [6.65, 24.25], [6.75, 24.0], [6.53, 23.47], [6.0, 23.25], [5.75, 23.35], [5.68, 23.32], [5.65, 23.25], [5.68, 23.18], [6.03, 23.03], [6.25, 22.5], [6.15, 22.25], [6.25, 22.0], [6.03, 21.47], [5.5, 21.25], [4.97, 21.47], [4.82, 21.82], [4.47, 21.97], [4.32, 22.32], [3.97, 22.47], [3.82, 22.82], [3.75, 22.85], [3.5, 22.75], [2.97, 22.97], [2.75, 23.5], [2.85, 23.75], [2.75, 24.0]]]]}, "2022-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.75, 24.0], [2.96, 24.5], [2.75, 25.0], [2.85, 25.25], [2.75, 25.5], [2.97, 26.03], [3.5, 26.25], [4.03, 26.03], [4.25, 25.5], [4.15, 25.25], [4.18, 25.18], [4.25, 25.15], [4.32, 25.18], [4.47, 25.53], [5.0, 25.75], [5.53, 25.53], [5.75, 25.0], [5.65, 24.75], [5.68, 24.68], [6.03, 24.53], [6.25, 24.0], [6.03, 23.47], [5.68, 23.32], [5.53, 22.97], [5.18, 22.82], [5.03, 22.47], [4.5, 22.25], [3.97, 22.47], [3.82, 22.82], [3.75, 22.85], [3.5, 22.75], [2.97, 22.97], [2.75, 23.5], [2.85, 23.75], [2.75, 24.0]]]]}, "2022-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.97, 24.53], [5.5, 24.75], [6.03, 24.53], [6.25, 24.0], [6.03, 23.47], [5.5, 23.25], [4.97, 23.47], [4.75, 24.0], [4.97, 24.53]]]]}, "2022-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.97, 24.53], [5.5, 24.75], [6.03, 24.53], [6.25, 24.0], [6.03, 23.47], [5.5, 23.25], [4.97, 23.47], [4.75, 24.0], [4.97, 24.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.387455215815919}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.1612853381699955}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.68303957111266, 34.62892381284303, 36.29680556142711, 36.5510589245381, 36.796812742670795, 32.91077364749759, 32.928887528847156]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.80231624517887, 35.6293922952479, 39.43201353002024, 40.69068568720019, 39.29915144494174, 32.91077364749759, 32.928887528847156]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6928531845318844, 2.206187740155, 2.2909446485789555, 2.343141728196713, 1.7353998462552376, 1.6940247368827954, 1.7486357598546078]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.756300961988984, 3.2364063483187806, 3.10365936444191, 3.387455215815919, 2.0694158297408762, 1.6940247368827954, 1.7486357598546078]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.391089337109861, 1.7950627819355984, 1.8788475763104882, 1.9581915693105842, 1.4895436072466932, 1.508287550180096, 1.5540968956662815]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4416548245547587, 2.7247283657388914, 2.4557644776009004, 2.758078978959952, 1.7291824957846378, 1.508287550180096, 1.5540968956662815]}}