{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:52.311955", "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": "2010-Jun-17_to_2010-Jun-21_53.0_17.5"}, "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": 2010060000638}, "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 17 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 21 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 126256.56035471779}, "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": ["Oman", "Saudi Arabia", "Yemen"]}, "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": 17.5}, "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": 53.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "53.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 50.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 56.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.0, 19.75], [56.53, 19.53], [56.75, 19.0], [56.53, 18.47], [56.0, 18.25], [55.47, 18.47], [55.25, 19.0], [55.47, 19.53], [56.0, 19.75]]]]}, "2010-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.35, 18.25], [52.25, 18.5], [52.47, 19.03], [52.82, 19.18], [52.97, 19.53], [53.5, 19.75], [53.75, 19.65], [53.82, 19.68], [53.85, 19.75], [53.75, 20.0], [53.97, 20.53], [54.5, 20.75], [54.75, 20.65], [55.0, 20.75], [55.25, 20.65], [55.5, 20.75], [56.03, 20.53], [56.18, 20.18], [56.53, 20.03], [56.75, 19.5], [56.65, 19.25], [56.75, 19.0], [56.65, 18.75], [56.75, 18.5], [56.53, 17.97], [56.18, 17.82], [56.03, 17.47], [55.68, 17.32], [55.53, 16.97], [55.0, 16.75], [54.47, 16.97], [54.3, 17.38], [54.18, 17.32], [54.03, 16.97], [53.5, 16.75], [53.25, 16.85], [53.0, 16.75], [52.47, 16.97], [52.25, 17.5], [52.35, 17.75], [52.25, 18.0], [52.35, 18.25]]]]}, "2010-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.97, 17.53], [50.32, 17.68], [50.47, 18.03], [50.82, 18.18], [50.97, 18.53], [51.32, 18.68], [51.47, 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"max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.66869980641377}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.822970353210084}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.82224481119175, 31.5446523904036, 30.652202579946447, 30.787031465294774, 30.61502864943344]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.82224481119175, 28.37759333195163, 26.446422747317, 26.1772913517853, 26.827237889551782]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.9250175061582127, -2.7929808795389843, -3.041398603550007, -2.859424192673809, -2.3772198651498537]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.9250175061582127, -4.632156692881324, -4.66869980641377, -3.9553212302161, -3.3072728423682065]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5666638142105103, -1.831249227846249, -2.113384095412553, -2.04322248447658, -1.648294227801431]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5666638142105103, -2.6998477957320373, -3.110353475802986, -2.9844941011960677, -2.239682300929909]}}