{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:35.757434", "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": "2017-Jul-25_to_2017-Jul-31_345.5_24.5"}, "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": 2017070002842}, "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 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2017"}, "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": 353296.1042121943}, "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": ["Mauritania", "Morocco"]}, "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": ["North Atlantic Ocean"]}, "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": 24.5}, "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": 345.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "345.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 340.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 351.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.15, 26.75], [-10.25, 27.0], [-10.03, 27.53], [-9.68, 27.68], [-9.53, 28.03], [-9.0, 28.25], [-8.47, 28.03], [-8.25, 27.5], [-8.35, 27.25], [-8.25, 27.0], [-8.47, 26.47], [-8.82, 26.32], [-8.85, 26.25], [-8.75, 26.0], [-8.97, 25.47], [-9.5, 25.25], [-10.03, 25.47], [-10.25, 26.0], [-10.15, 26.25], [-10.25, 26.5], [-10.15, 26.75]]]]}, "2017-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.15, 26.75], [-10.25, 27.0], [-10.03, 27.53], [-9.68, 27.68], [-9.53, 28.03], [-9.0, 28.25], [-8.47, 28.03], [-8.25, 27.5], [-8.35, 27.25], [-8.25, 27.0], [-8.47, 26.47], [-8.82, 26.32], [-8.85, 26.25], [-8.75, 26.0], [-8.97, 25.47], [-9.5, 25.25], [-10.03, 25.47], [-10.25, 26.0], [-10.15, 26.25], [-10.25, 26.5], [-10.15, 26.75]]]]}, "2017-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.75, 24.0], [-18.53, 24.53], [-18.0, 24.75], [-17.75, 24.65], [-17.68, 24.68], [-17.53, 25.03], [-17.0, 25.25], [-16.47, 25.03], [-16.25, 24.5], [-16.35, 24.25], [-16.25, 24.0], [-16.35, 23.75], [-16.25, 23.5], [-16.35, 23.25], [-16.25, 23.0], [-16.47, 22.47], [-16.82, 22.32], [-16.97, 21.97], [-17.5, 21.75], [-17.75, 21.85], [-18.0, 21.75], [-18.53, 21.97], [-18.75, 22.5], [-18.65, 22.75], [-18.75, 23.0], [-18.54, 23.5], [-18.75, 24.0]]], [[[-15.75, 24.0], [-15.53, 24.53], [-15.18, 24.68], [-15.04, 25.0], [-15.25, 25.5], [-15.03, 26.03], [-14.5, 26.25], [-13.97, 26.03], [-13.75, 25.5], [-13.87, 25.2], [-13.7, 25.12], [-13.53, 25.53], [-13.0, 25.75], [-12.75, 25.65], [-12.5, 25.75], [-12.25, 25.65], [-12.18, 25.68], [-12.03, 26.03], [-11.5, 26.25], [-11.25, 26.15], [-11.0, 26.25], [-10.75, 26.15], [-10.68, 26.18], [-10.53, 26.53], [-10.18, 26.68], [-10.15, 26.75], [-10.25, 27.0], [-10.03, 27.53], [-9.68, 27.68], [-9.53, 28.03], [-9.0, 28.25], [-8.47, 28.03], [-8.32, 27.68], [-7.97, 27.53], [-7.75, 27.0], [-7.97, 26.47], [-8.5, 26.25], [-8.75, 26.35], [-8.82, 26.32], [-8.85, 26.25], [-8.75, 26.0], [-8.97, 25.47], [-9.5, 25.25], [-9.75, 25.35], [-9.82, 25.32], [-9.97, 24.97], [-10.32, 24.82], [-10.46, 24.5], [-10.25, 24.0], [-10.47, 23.47], [-11.0, 23.25], [-11.5, 23.46], [-11.82, 23.32], [-11.97, 22.97], [-12.32, 22.82], [-12.47, 22.47], [-13.0, 22.25], [-13.25, 22.35], [-13.5, 22.25], [-13.75, 22.35], [-14.0, 22.25], [-14.53, 22.47], [-14.75, 23.0], [-14.97, 22.47], [-15.5, 22.25], [-16.03, 22.47], [-16.25, 23.0], [-16.03, 23.53], [-15.62, 23.7], [-15.75, 24.0]], [[-14.57, 23.43], [-14.87, 23.3], [-14.75, 23.0], [-14.57, 23.43]], [[-14.25, 23.85], [-14.32, 23.82], [-14.43, 23.57], [-14.18, 23.68], [-14.15, 23.75], [-14.18, 23.82], [-14.25, 23.85]]]]}, "2017-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.53, 23.53], [-19.12, 23.7], [-19.25, 24.0], [-19.03, 24.53], [-18.68, 24.68], [-18.53, 25.03], [-18.18, 25.18], [-18.03, 25.53], [-17.5, 25.75], [-16.97, 25.53], [-16.82, 25.18], [-16.47, 25.03], [-16.32, 24.68], [-16.0, 24.54], [-15.68, 24.68], [-15.53, 25.03], [-15.18, 25.18], [-15.15, 25.25], [-15.25, 25.5], [-15.03, 26.03], [-14.5, 26.25], [-13.97, 26.03], [-13.82, 25.68], [-13.75, 25.65], [-13.5, 25.75], [-13.25, 25.65], [-13.0, 25.75], [-12.75, 25.65], [-12.5, 25.75], [-12.25, 25.65], [-12.18, 25.68], [-12.03, 26.03], [-11.5, 26.25], [-11.25, 26.15], [-11.0, 26.25], [-10.75, 26.15], [-10.68, 26.18], [-10.53, 26.53], [-10.18, 26.68], [-10.03, 27.03], [-9.68, 27.18], [-9.53, 27.53], [-9.0, 27.75], [-8.75, 27.65], [-8.5, 27.75], [-7.97, 27.53], [-7.75, 27.0], [-7.85, 26.75], [-7.75, 26.5], [-7.85, 26.25], [-7.75, 26.0], [-7.85, 25.75], [-7.75, 25.5], [-7.85, 25.25], [-7.75, 25.0], [-7.97, 24.47], [-8.5, 24.25], [-9.0, 24.46], [-9.32, 24.32], [-9.46, 24.0], [-9.25, 23.5], [-9.47, 22.97], [-9.82, 22.82], [-9.85, 22.75], [-9.75, 22.5], [-9.85, 22.25], [-9.75, 22.0], [-9.97, 21.47], [-10.5, 21.25], [-10.75, 21.35], [-10.82, 21.32], [-10.97, 20.97], [-11.5, 20.75], [-11.75, 20.85], [-11.82, 20.82], [-11.97, 20.47], [-12.5, 20.25], [-13.03, 20.47], [-13.25, 21.0], [-13.15, 21.25], [-13.18, 21.32], [-13.25, 21.35], [-13.5, 21.25], [-13.75, 21.35], [-14.0, 21.25], [-14.25, 21.35], [-14.5, 21.25], [-15.03, 21.47], [-15.18, 21.82], [-15.53, 21.97], [-15.68, 22.32], [-16.03, 22.47], [-16.18, 22.82], [-16.25, 22.85], [-16.32, 22.82], [-16.47, 22.47], [-16.82, 22.32], [-16.85, 22.25], [-16.75, 22.0], [-16.97, 21.47], [-17.32, 21.32], [-17.47, 20.97], [-18.0, 20.75], [-18.53, 20.97], [-18.75, 21.5], [-18.65, 21.75], [-18.68, 21.82], [-18.75, 21.85], [-19.0, 21.75], [-19.53, 21.97], [-19.75, 22.5], [-19.65, 22.75], [-19.75, 23.0], [-19.53, 23.53]]]]}, "2017-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.53, 23.53], [-19.12, 23.7], [-19.25, 24.0], [-19.03, 24.53], [-18.68, 24.68], [-18.53, 25.03], [-18.18, 25.18], [-18.03, 25.53], [-17.5, 25.75], [-16.97, 25.53], [-16.82, 25.18], [-16.47, 25.03], [-16.32, 24.68], [-16.0, 24.54], [-15.68, 24.68], [-15.53, 25.03], [-15.18, 25.18], [-15.15, 25.25], [-15.25, 25.5], [-15.03, 26.03], [-14.5, 26.25], [-13.97, 26.03], [-13.82, 25.68], [-13.75, 25.65], [-13.5, 25.75], [-13.25, 25.65], [-13.0, 25.75], [-12.75, 25.65], [-12.5, 25.75], [-12.25, 25.65], [-12.18, 25.68], [-12.03, 26.03], [-11.5, 26.25], [-11.25, 26.15], [-11.0, 26.25], [-10.75, 26.15], [-10.68, 26.18], [-10.53, 26.53], [-10.0, 26.75], [-9.75, 26.65], [-9.68, 26.68], [-9.53, 27.03], [-9.18, 27.18], [-9.03, 27.53], [-8.5, 27.75], [-7.97, 27.53], [-7.75, 27.0], [-7.85, 26.75], [-7.75, 26.5], [-7.85, 26.25], [-7.75, 26.0], [-7.85, 25.75], [-7.75, 25.5], [-7.85, 25.25], [-7.75, 25.0], [-7.97, 24.47], [-8.5, 24.25], [-9.0, 24.46], [-9.32, 24.32], [-9.37, 24.2], [-8.97, 24.03], [-8.75, 23.5], [-8.97, 22.97], [-9.5, 22.75], [-9.75, 22.85], [-9.82, 22.82], [-9.85, 22.75], [-9.75, 22.5], [-9.85, 22.25], [-9.75, 22.0], [-9.97, 21.47], [-10.5, 21.25], [-10.75, 21.35], [-10.82, 21.32], [-10.97, 20.97], [-11.5, 20.75], [-11.75, 20.85], [-11.82, 20.82], [-11.97, 20.47], [-12.5, 20.25], [-13.03, 20.47], [-13.25, 21.0], [-13.15, 21.25], [-13.18, 21.32], [-13.25, 21.35], [-13.5, 21.25], [-13.75, 21.35], [-14.0, 21.25], [-14.25, 21.35], [-14.5, 21.25], [-15.03, 21.47], [-15.18, 21.82], [-15.53, 21.97], [-15.68, 22.32], [-16.03, 22.47], [-16.18, 22.82], [-16.25, 22.85], [-16.32, 22.82], [-16.47, 22.47], [-16.82, 22.32], [-16.85, 22.25], [-16.75, 22.0], [-16.97, 21.47], [-17.32, 21.32], [-17.47, 20.97], [-18.0, 20.75], [-18.53, 20.97], [-18.75, 21.5], [-18.65, 21.75], [-18.68, 21.82], [-18.75, 21.85], [-19.0, 21.75], [-19.53, 21.97], [-19.75, 22.5], [-19.65, 22.75], [-19.75, 23.0], [-19.53, 23.53]]]]}, "2017-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.53, 23.53], [-19.12, 23.7], [-19.25, 24.0], [-19.03, 24.53], [-18.68, 24.68], [-18.53, 25.03], [-18.18, 25.18], [-18.03, 25.53], [-17.5, 25.75], [-16.97, 25.53], [-16.82, 25.18], [-16.47, 25.03], [-16.32, 24.68], [-16.0, 24.54], [-15.68, 24.68], [-15.53, 25.03], [-15.18, 25.18], [-15.03, 25.53], [-14.5, 25.75], [-14.25, 25.65], [-14.0, 25.75], [-13.75, 25.65], [-13.5, 25.75], [-13.25, 25.65], [-13.0, 25.75], [-12.75, 25.65], [-12.5, 25.75], [-12.25, 25.65], [-12.0, 25.75], [-11.75, 25.65], [-11.5, 25.75], [-11.25, 25.65], [-11.18, 25.68], [-11.03, 26.03], [-10.5, 26.25], [-10.25, 26.15], [-10.18, 26.18], [-10.03, 26.53], [-9.68, 26.68], [-9.53, 27.03], [-9.18, 27.18], [-9.03, 27.53], [-8.5, 27.75], [-7.97, 27.53], [-7.75, 27.0], [-7.85, 26.75], [-7.75, 26.5], [-7.85, 26.25], [-7.75, 26.0], [-7.85, 25.75], [-7.75, 25.5], [-7.85, 25.25], [-7.75, 25.0], [-7.97, 24.47], [-8.5, 24.25], [-9.0, 24.46], [-9.32, 24.32], [-9.37, 24.2], [-8.97, 24.03], [-8.75, 23.5], [-8.97, 22.97], [-9.5, 22.75], [-9.75, 22.85], [-9.82, 22.82], [-9.85, 22.75], [-9.75, 22.5], [-9.85, 22.25], [-9.75, 22.0], [-9.97, 21.47], [-10.5, 21.25], [-10.75, 21.35], [-10.82, 21.32], [-10.97, 20.97], [-11.5, 20.75], [-11.75, 20.85], [-11.82, 20.82], [-11.97, 20.47], [-12.5, 20.25], [-13.03, 20.47], [-13.25, 21.0], [-13.15, 21.25], [-13.18, 21.32], [-13.25, 21.35], [-13.5, 21.25], [-13.75, 21.35], [-14.0, 21.25], [-14.25, 21.35], [-14.5, 21.25], [-15.03, 21.47], [-15.18, 21.82], [-15.53, 21.97], [-15.68, 22.32], [-16.03, 22.47], [-16.18, 22.82], [-16.25, 22.85], [-16.32, 22.82], [-16.47, 22.47], [-16.82, 22.32], [-16.85, 22.25], [-16.75, 22.0], [-16.97, 21.47], [-17.32, 21.32], [-17.47, 20.97], [-18.0, 20.75], [-18.53, 20.97], [-18.75, 21.5], [-18.65, 21.75], [-18.68, 21.82], [-18.75, 21.85], [-19.0, 21.75], [-19.53, 21.97], [-19.75, 22.5], [-19.65, 22.75], [-19.75, 23.0], [-19.53, 23.53]]]]}, "2017-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.5, 24.25], [-8.97, 24.03], [-8.75, 23.5], [-8.97, 22.97], [-9.5, 22.75], [-10.03, 22.97], [-10.25, 23.5], [-10.03, 24.03], [-9.5, 24.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.211349426905485}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.143653905417473}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.58568503082398, 37.63419859375972, 33.34792708473583, 34.88392984329403, 34.78856610731361, 34.80608739631958, 39.749299100987685]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [38.69466739909677, 38.294396861629764, 38.991232626058036, 39.927187772293166, 40.31576728124418, 40.70165533039284, 39.749299100987685]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.4997825437780308, 3.5465411319140685, 3.590356157912334, 4.161845872199135, 4.219624559399377, 4.328791530630925, 2.7272997372205623]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.681723066041286, 3.9410763823532875, 5.926533872549612, 9.211349426905485, 7.9921116734840325, 7.22264248867657, 2.7272997372205623]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.0398484227036249, 1.0353324641932176, 1.3982834007239902, 1.746019126207411, 1.7667559664139203, 1.828768834196353, 1.0812200127380487]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.0981119674472084, 1.0842497847425032, 1.8230874298648432, 3.6336083926180596, 2.558048124912617, 2.9892607402673295, 1.0812200127380487]}}