{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:30.934491", "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": "2013-Jun-03_to_2013-Jun-06_50.5_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": 2013060000241}, "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": "June 03 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 06 2013"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 61593.511322735125}, "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": ["Qatar", "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": ["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": 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": 50.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "50.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 49.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 52.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.47, 25.03], [49.82, 25.18], [49.85, 25.25], [49.75, 25.5], [49.97, 26.03], [50.5, 26.25], [50.75, 26.15], [50.82, 26.18], [50.97, 26.53], [51.32, 26.68], [51.47, 27.03], [52.0, 27.25], [52.53, 27.03], [52.68, 26.68], [53.03, 26.53], [53.25, 26.0], [53.15, 25.75], [53.25, 25.5], [53.15, 25.25], [53.25, 25.0], [53.15, 24.75], [53.25, 24.5], [53.03, 23.97], [52.68, 23.82], [52.53, 23.47], [52.0, 23.25], [51.47, 23.47], [51.3, 23.88], [51.18, 23.82], [51.03, 23.47], [50.5, 23.25], [50.25, 23.35], [50.0, 23.25], [49.47, 23.47], [49.25, 24.0], [49.35, 24.25], [49.25, 24.5], [49.47, 25.03]]]]}, "2013-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.47, 25.03], [49.82, 25.18], [49.85, 25.25], [49.75, 25.5], [49.97, 26.03], [50.5, 26.25], [50.75, 26.15], [50.82, 26.18], [50.97, 26.53], [51.32, 26.68], [51.47, 27.03], [52.0, 27.25], [52.53, 27.03], [52.68, 26.68], [53.03, 26.53], [53.25, 26.0], [53.15, 25.75], [53.25, 25.5], [53.15, 25.25], [53.25, 25.0], [53.15, 24.75], [53.25, 24.5], [53.03, 23.97], [52.68, 23.82], [52.53, 23.47], [52.0, 23.25], [51.47, 23.47], [51.3, 23.88], [51.18, 23.82], [51.03, 23.47], [50.5, 23.25], [50.25, 23.35], [50.0, 23.25], [49.47, 23.47], [49.25, 24.0], [49.35, 24.25], [49.25, 24.5], [49.47, 25.03]]]]}, "2013-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.47, 25.03], [49.82, 25.18], [49.85, 25.25], [49.75, 25.5], [49.97, 26.03], [50.5, 26.25], [50.75, 26.15], [50.82, 26.18], [50.97, 26.53], [51.32, 26.68], [51.47, 27.03], [52.0, 27.25], [52.53, 27.03], [52.68, 26.68], [53.03, 26.53], [53.25, 26.0], [53.15, 25.75], [53.25, 25.5], [53.15, 25.25], [53.25, 25.0], [53.15, 24.75], [53.25, 24.5], [53.03, 23.97], [52.68, 23.82], [52.53, 23.47], [52.0, 23.25], [51.47, 23.47], [51.3, 23.88], [51.18, 23.82], [51.03, 23.47], [50.5, 23.25], [50.25, 23.35], [50.0, 23.25], [49.47, 23.47], [49.25, 24.0], [49.35, 24.25], [49.25, 24.5], [49.47, 25.03]]]]}, "2013-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.32, 25.18], [50.47, 25.53], [51.0, 25.75], [51.5, 25.54], [52.0, 25.75], [52.25, 25.65], [52.5, 25.75], [53.03, 25.53], [53.25, 25.0], [53.15, 24.75], [53.25, 24.5], [53.03, 23.97], [52.5, 23.75], [52.25, 23.85], [52.0, 23.75], [51.5, 23.96], [51.18, 23.82], [51.03, 23.47], [50.5, 23.25], [49.97, 23.47], [49.75, 24.0], [49.85, 24.25], [49.75, 24.5], [49.97, 25.03], [50.32, 25.18]]], [[[51.47, 27.03], [52.0, 27.25], [52.53, 27.03], [52.75, 26.5], [52.53, 25.97], [52.0, 25.75], [51.47, 25.97], [51.25, 26.5], [51.47, 27.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.292101895922713}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.507268186370455}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.136399464056353, 29.89885891985955, 30.537180360968193, 30.693605804156164]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.393492665962015, 28.229754453260398, 28.788353358250333, 28.93971000954565]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.562759670277961, -2.8235679868298367, -2.223281346865995, -2.2926350989289657]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.7810276200261796, -4.292101895922713, -3.4670584242649056, -3.459077446618096]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6532446503856968, -1.8341877907316677, -1.417259819798087, -1.4088624219887684]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0539130220006734, -2.292111413863867, -1.7808659683401693, -1.755101886426594]}}