{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:19.664355", "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": "2020-Jun-23_to_2020-Jun-28_59.5_22.5"}, "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": 2020060000682}, "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 23 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 28 2020"}, "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": "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": 68781.71458246217}, "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"]}, "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": ["Gulf of Oman"]}, "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": 22.5}, "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": 59.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "59.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 56.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 59.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[58.25, 23.0], [58.47, 23.53], [59.0, 23.75], [59.25, 23.65], 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[55.97, 20.47], [55.75, 21.0], [55.85, 21.25], [55.75, 21.5], [55.97, 22.03]]]]}, "2020-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.85, 21.75], [55.75, 22.0], [55.97, 22.53], [56.32, 22.68], [56.47, 23.03], [57.0, 23.25], [57.25, 23.15], [57.5, 23.25], [57.75, 23.15], [58.0, 23.25], [57.47, 23.47], [57.25, 24.0], [57.47, 24.53], [58.0, 24.75], [58.25, 24.65], [58.5, 24.75], [59.03, 24.53], [59.18, 24.18], [59.53, 24.03], [59.68, 23.68], [60.03, 23.53], [60.25, 23.0], [60.15, 22.75], [60.25, 22.5], [60.03, 21.97], [59.5, 21.75], [59.25, 21.85], [59.0, 21.75], [58.75, 21.85], [58.5, 21.75], [58.25, 21.85], [58.18, 21.82], [58.15, 21.75], [58.25, 21.5], [58.15, 21.25], [58.25, 21.0], [58.15, 20.75], [58.25, 20.5], [58.15, 20.25], [58.25, 20.0], [58.03, 19.47], [57.5, 19.25], [56.97, 19.47], [56.82, 19.82], [56.47, 19.97], [56.32, 20.32], [55.97, 20.47], [55.75, 21.0], [55.85, 21.25], [55.75, 21.5], [55.85, 21.75]], [[58.25, 23.15], [58.32, 23.18], [58.35, 23.25], [58.32, 23.32], [58.25, 23.35], [58.0, 23.25], [58.25, 23.15]]]]}, "2020-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.85, 21.25], [55.75, 21.5], [55.85, 21.75], [55.75, 22.0], [55.97, 22.53], [56.32, 22.68], [56.47, 23.03], [57.0, 23.25], [57.25, 23.15], [57.5, 23.25], [57.75, 23.15], [58.0, 23.25], [57.47, 23.47], [57.25, 24.0], [57.47, 24.53], [58.0, 24.75], [58.25, 24.65], [58.5, 24.75], [59.03, 24.53], [59.18, 24.18], [59.53, 24.03], [59.68, 23.68], [60.03, 23.53], [60.25, 23.0], [60.15, 22.75], [60.25, 22.5], [60.03, 21.97], [59.5, 21.75], [59.25, 21.85], [59.0, 21.75], [58.75, 21.85], [58.5, 21.75], [58.25, 21.85], [58.18, 21.82], [58.15, 21.75], [58.25, 21.5], [58.15, 21.25], [58.25, 21.0], [58.15, 20.75], [58.25, 20.5], [58.15, 20.25], [58.25, 20.0], [58.03, 19.47], [57.5, 19.25], [56.97, 19.47], [56.82, 19.82], [56.75, 19.85], [56.5, 19.75], [55.97, 19.97], [55.75, 20.5], [55.85, 20.75], [55.75, 21.0], [55.85, 21.25]], [[58.25, 23.15], 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21.03], [56.5, 21.25], [57.03, 21.03], [57.25, 20.5], [57.03, 19.97], [56.5, 19.75], [55.97, 19.97]]], [[[58.47, 22.97], [58.25, 23.5], [58.47, 24.03], [59.0, 24.25], [59.53, 24.03], [59.75, 23.5], [59.53, 22.97], [59.0, 22.75], [58.47, 22.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.490839033853035}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.845148032284253}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.18455432913987, 31.75809209805641, 32.14410153220882, 32.02109014678899, 32.866367312165494, 31.288136488638997]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.31663637632613, 29.11606823192983, 29.363449061939832, 29.580320934773965, 29.576688916062665, 29.767329542647758]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.5342995581157957, -2.8870061199007333, -2.8223758770114338, -2.967665551432338, -2.8020367358579894, -2.1331432462380633]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.986836776566804, -4.157980379688638, -3.7017950583922925, -4.490839033853035, -3.8458762574536536, -2.6101882504527794]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7808101804907572, -1.7026003239508436, -1.6626077763738947, -1.7153335790074864, -1.5922549749407409, -1.38943938485467]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.917590396468086, -2.157586944691334, -2.0605923035865867, -2.053356612386149, -1.876259463855894, -1.4482810072975594]}}