{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:59.154961", "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-Sep-20_to_2017-Sep-25_54.0_23.5"}, "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": 2017090002319}, "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 20 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 25 2017"}, "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": 76527.0720676588}, "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", "United Arab Emirates"]}, "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": ["Persian Gulf"]}, "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": 23.5}, "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": 54.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "54.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 52.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 55.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.5, 25.25], [56.03, 25.03], [56.25, 24.5], [56.03, 23.97], [55.5, 23.75], [54.97, 23.97], [54.75, 24.5], [54.97, 25.03], [55.5, 25.25]]]]}, "2017-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.35, 24.75], [53.25, 25.0], [53.47, 25.53], [54.0, 25.75], [54.5, 25.54], [55.0, 25.75], [55.53, 25.53], [55.68, 25.18], [56.03, 25.03], [56.25, 24.5], [56.03, 23.97], [55.68, 23.82], [55.53, 23.47], [55.0, 23.25], [54.75, 23.35], [54.5, 23.25], [54.25, 23.35], [54.0, 23.25], [53.47, 23.47], [53.25, 24.0], [53.35, 24.25], [53.25, 24.5], [53.35, 24.75]]]]}, "2017-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.25, 24.0], [53.35, 24.25], [53.25, 24.5], [53.35, 24.75], [53.25, 25.0], [53.47, 25.53], [54.0, 25.75], [54.5, 25.54], [55.0, 25.75], [55.53, 25.53], [55.68, 25.18], [56.03, 25.03], [56.25, 24.5], [56.03, 23.97], [55.68, 23.82], [55.53, 23.47], [55.18, 23.32], [55.15, 23.25], [55.25, 23.0], [55.03, 22.47], [54.5, 22.25], [54.25, 22.35], [54.0, 22.25], [53.75, 22.35], [53.5, 22.25], [52.97, 22.47], [52.75, 23.0], [52.97, 23.53], [53.32, 23.68], [53.35, 23.75], [53.25, 24.0]]]]}, "2017-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.85, 22.75], [51.75, 23.0], [51.85, 23.25], [51.75, 23.5], [51.85, 23.75], [51.75, 24.0], [51.97, 24.53], [52.5, 24.75], [52.75, 24.65], [53.0, 24.75], [53.25, 24.65], [53.32, 24.68], [53.35, 24.75], [53.25, 25.0], [53.47, 25.53], [54.0, 25.75], [54.5, 25.54], [55.0, 25.75], [55.53, 25.53], [55.68, 25.18], [56.03, 25.03], [56.25, 24.5], [56.03, 23.97], [55.68, 23.82], [55.53, 23.47], [55.18, 23.32], [55.15, 23.25], [55.25, 23.0], [55.03, 22.47], [54.5, 22.25], [54.25, 22.35], [54.13, 22.3], [54.25, 22.0], [54.03, 21.47], [53.68, 21.32], [53.53, 20.97], [53.0, 20.75], [52.47, 20.97], [52.32, 21.32], [51.97, 21.47], [51.75, 22.0], [51.85, 22.25], [51.75, 22.5], [51.85, 22.75]]]]}, "2017-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.85, 22.75], [51.75, 23.0], [51.85, 23.25], [51.75, 23.5], [51.85, 23.75], [51.75, 24.0], [51.97, 24.53], [52.5, 24.75], [52.75, 24.65], [53.0, 24.75], [53.25, 24.65], [53.5, 24.75], [53.75, 24.65], [53.82, 24.68], [53.97, 25.03], [54.5, 25.25], [55.03, 25.03], [55.25, 24.5], [55.15, 24.25], [55.25, 24.0], [55.15, 23.75], [55.25, 23.5], [55.15, 23.25], [55.25, 23.0], [55.03, 22.47], [54.5, 22.25], [54.25, 22.35], [54.13, 22.3], [54.25, 22.0], [54.03, 21.47], [53.68, 21.32], [53.53, 20.97], [53.0, 20.75], [52.47, 20.97], [52.32, 21.32], [51.97, 21.47], [51.75, 22.0], [51.85, 22.25], [51.75, 22.5], [51.85, 22.75]]]]}, "2017-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.85, 22.75], [51.75, 23.0], [51.85, 23.25], [51.75, 23.5], [51.85, 23.75], [51.75, 24.0], [51.97, 24.53], [52.5, 24.75], [52.75, 24.65], [53.0, 24.75], [53.25, 24.65], [53.5, 24.75], [54.03, 24.53], [54.18, 24.18], [54.25, 24.15], [54.5, 24.25], [55.03, 24.03], [55.25, 23.5], [55.15, 23.25], [55.25, 23.0], [55.03, 22.47], [54.5, 22.25], [54.25, 22.35], [54.13, 22.3], [54.25, 22.0], [54.03, 21.47], [53.68, 21.32], [53.53, 20.97], [53.0, 20.75], [52.47, 20.97], [52.32, 21.32], [51.97, 21.47], [51.75, 22.0], [51.85, 22.25], [51.75, 22.5], [51.85, 22.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.928476118154947}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.005295625851413}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.883160524238974, 34.773471850810836, 34.659614080615086, 34.622687276607564, 34.749743024514316, 34.33485162343584]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.883160524238974, 35.54473490303843, 35.55732095219611, 35.492131671943696, 35.89520796419765, 35.09849491655797]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6647494457656649, 2.0048859380113098, 1.9200492124584716, 1.9662330870452525, 2.2022383720085426, 1.9195497389966616]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6647494457656649, 2.740097702324931, 2.3616380966782913, 2.6698942126260476, 2.928476118154947, 2.766317696983151]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3849214732287873, 2.0346488589155083, 1.8645964814084934, 1.830097984122718, 1.9603633868362416, 1.6486481770428953]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3849214732287873, 2.5519583641027697, 2.1226818600386035, 2.465464956792792, 2.7774734158594394, 2.200310893701755]}}