{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:11.000918", "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-Aug-24_to_2012-Aug-26_50.0_27.5"}, "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": 2012080001133}, "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": "August 24 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 26 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 81557.07649957684}, "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": ["Iran"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "W.C.Asia"]}, "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": 27.5}, "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": 50.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "50.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 48.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 51.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.85, 29.75], [47.75, 30.0], [47.97, 30.53], [48.5, 30.75], [48.75, 30.65], [49.0, 30.75], [49.25, 30.65], [49.5, 30.75], [49.75, 30.65], [50.0, 30.75], [50.53, 30.53], [50.75, 30.0], [50.65, 29.75], [50.68, 29.68], [51.03, 29.53], [51.25, 29.0], [51.15, 28.75], [51.25, 28.5], [51.15, 28.25], [51.18, 28.18], [51.53, 28.03], [51.68, 27.68], [52.03, 27.53], [52.25, 27.0], [52.03, 26.47], [51.68, 26.32], [51.53, 25.97], [51.0, 25.75], [50.75, 25.85], [50.5, 25.75], [49.97, 25.97], [49.82, 26.32], [49.47, 26.47], [49.32, 26.82], [48.97, 26.97], [48.75, 27.5], [48.85, 27.75], [48.82, 27.82], [48.47, 27.97], [48.32, 28.32], [47.97, 28.47], [47.75, 29.0], [47.85, 29.25], [47.75, 29.5], [47.85, 29.75]]]]}, "2012-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.85, 29.75], [47.75, 30.0], [47.97, 30.53], [48.5, 30.75], [48.75, 30.65], [49.0, 30.75], [49.25, 30.65], [49.5, 30.75], [49.75, 30.65], [50.0, 30.75], [50.53, 30.53], [50.75, 30.0], [50.65, 29.75], [50.68, 29.68], [51.03, 29.53], [51.25, 29.0], [51.15, 28.75], [51.25, 28.5], [51.15, 28.25], [51.18, 28.18], [51.53, 28.03], [51.68, 27.68], [52.03, 27.53], [52.25, 27.0], [52.03, 26.47], [51.68, 26.32], [51.53, 25.97], [51.0, 25.75], [50.75, 25.85], [50.5, 25.75], [49.97, 25.97], [49.82, 26.32], [49.47, 26.47], [49.32, 26.82], [48.97, 26.97], [48.75, 27.5], [48.85, 27.75], [48.82, 27.82], [48.47, 27.97], [48.32, 28.32], [47.97, 28.47], [47.75, 29.0], [47.85, 29.25], [47.75, 29.5], [47.85, 29.75]]]]}, "2012-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.85, 29.75], [47.75, 30.0], [47.97, 30.53], [48.5, 30.75], [48.75, 30.65], [49.0, 30.75], [49.25, 30.65], [49.5, 30.75], [49.75, 30.65], [50.0, 30.75], [50.53, 30.53], [50.75, 30.0], [50.65, 29.75], [50.68, 29.68], [51.03, 29.53], [51.25, 29.0], [51.15, 28.75], [51.25, 28.5], [51.15, 28.25], [51.18, 28.18], [51.53, 28.03], [51.68, 27.68], [52.03, 27.53], [52.25, 27.0], [52.03, 26.47], [51.68, 26.32], [51.53, 25.97], [51.0, 25.75], [50.75, 25.85], [50.5, 25.75], [49.97, 25.97], [49.82, 26.32], [49.47, 26.47], [49.32, 26.82], [48.97, 26.97], [48.75, 27.5], [48.85, 27.75], [48.82, 27.82], [48.47, 27.97], [48.32, 28.32], [47.97, 28.47], [47.75, 29.0], [47.85, 29.25], [47.75, 29.5], [47.85, 29.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.643371133107678}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.8615215301601085}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.00077443655806, 31.532062128183384, 32.13565911720565]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.336825812572954, 30.66120672176436, 31.664499820314234]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7800486958935986, -2.2085594015961987, -1.5959564929905279]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.807530220949843, -3.643371133107678, -2.1988168749712145]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7285234001762964, -2.1432237092695092, -1.52070403511478]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.956098929965031, -2.824492314285231, -1.9617522637613265]}}