{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:17.637993", "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": "2012-Apr-27_to_2012-May-02_45.0_20.5"}, "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": 2012040002687}, "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": "April 27 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 02 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 54874.33131518222}, "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": ["Saudi Arabia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 20.5}, "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": 45.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "45.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 47.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.35, 20.25], [44.25, 20.5], [44.47, 21.03], [45.0, 21.25], [45.53, 21.03], [45.68, 20.68], [46.03, 20.53], [46.25, 20.0], [46.03, 19.47], [45.68, 19.32], [45.53, 18.97], [45.0, 18.75], [44.47, 18.97], [44.25, 19.5], [44.35, 19.75], [44.25, 20.0], [44.35, 20.25]]]]}, "2012-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.35, 20.25], [44.25, 20.5], [44.47, 21.03], [44.82, 21.18], [44.97, 21.53], [45.32, 21.68], [45.47, 22.03], [46.0, 22.25], [46.25, 22.15], [46.5, 22.25], [47.03, 22.03], [47.18, 21.68], [47.53, 21.53], [47.75, 21.0], [47.53, 20.47], [47.18, 20.32], [47.03, 19.97], [46.5, 19.75], [46.25, 19.85], [46.18, 19.82], [46.03, 19.47], [45.68, 19.32], [45.53, 18.97], [45.0, 18.75], [44.47, 18.97], [44.25, 19.5], [44.35, 19.75], [44.25, 20.0], [44.35, 20.25]]]]}, "2012-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.85, 21.25], [43.75, 21.5], [43.97, 22.03], [44.5, 22.25], [44.8, 22.13], [44.97, 22.53], [45.5, 22.75], [46.0, 22.54], [46.5, 22.75], [47.03, 22.53], [47.25, 22.0], [47.15, 21.75], [47.18, 21.68], [47.53, 21.53], [47.75, 21.0], [47.53, 20.47], [47.18, 20.32], [47.03, 19.97], [46.5, 19.75], [46.25, 19.85], [46.18, 19.82], [46.03, 19.47], [45.68, 19.32], [45.53, 18.97], [45.0, 18.75], [44.47, 18.97], [44.25, 19.5], [44.35, 19.75], [44.32, 19.82], [43.97, 19.97], [43.75, 20.5], [43.85, 20.75], [43.75, 21.0], [43.85, 21.25]]]]}, "2012-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.85, 21.25], [43.75, 21.5], [43.97, 22.03], [44.5, 22.25], [44.8, 22.13], [44.97, 22.53], [45.5, 22.75], [46.0, 22.54], [46.5, 22.75], [47.03, 22.53], [47.25, 22.0], [47.15, 21.75], [47.18, 21.68], [47.53, 21.53], [47.75, 21.0], [47.53, 20.47], [47.18, 20.32], [47.03, 19.97], [46.5, 19.75], [46.25, 19.85], [46.0, 19.75], [45.75, 19.85], [45.5, 19.75], [45.25, 19.85], [45.0, 19.75], [44.75, 19.85], [44.5, 19.75], [43.97, 19.97], [43.75, 20.5], [43.85, 20.75], [43.75, 21.0], [43.85, 21.25]]]]}, "2012-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.85, 21.25], [43.75, 21.5], [43.97, 22.03], [44.5, 22.25], [44.8, 22.13], [44.97, 22.53], [45.5, 22.75], [46.0, 22.54], [46.5, 22.75], [47.03, 22.53], [47.25, 22.0], [47.15, 21.75], [47.25, 21.5], [47.03, 20.97], [46.68, 20.82], [46.65, 20.75], [46.75, 20.5], [46.53, 19.97], [46.0, 19.75], [45.75, 19.85], [45.5, 19.75], [45.25, 19.85], [45.0, 19.75], [44.75, 19.85], [44.5, 19.75], [43.97, 19.97], [43.75, 20.5], [43.85, 20.75], [43.75, 21.0], [43.85, 21.25]]]]}, "2012-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, 21.5], [43.97, 22.03], [44.5, 22.25], [44.8, 22.13], [44.97, 22.53], [45.5, 22.75], [46.03, 22.53], [46.25, 22.0], [46.03, 21.47], [45.63, 21.3], [45.75, 21.0], [45.65, 20.75], [45.75, 20.5], [45.53, 19.97], [45.0, 19.75], [44.47, 19.97], [44.25, 20.5], [44.35, 20.75], [44.32, 20.82], [43.97, 20.97], [43.75, 21.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.965562590972354}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.4701911106161334}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.10958954452076, 33.31863799460882, 33.38440989470541, 33.53650526918602, 33.605160472740636, 33.5285146365145]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.40267821603544, 33.876296493970074, 34.219838111133186, 34.06304995457771, 34.19226316060531, 34.17057662585967]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.670966367754005, 2.5368662615181496, 2.487425354259032, 2.4296831378450072, 2.3753551553276204, 2.417398712692986]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.947242075514737, 2.909875944570274, 2.965562590972354, 2.8320159293211304, 2.829833218119063, 2.896052035707328]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2364538032848162, 1.1271703738377492, 1.117370962811534, 1.1087590951847461, 1.0806666690998188, 1.0784484304492463]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3871340242180354, 1.262744716187786, 1.276520539800084, 1.2515192585282682, 1.297075638939531, 1.2930370430096152]}}