{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:04.566564", "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": "2014-Aug-17_to_2014-Aug-21_54.5_19.5"}, "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": 2014080000800}, "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 17 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 21 2014"}, "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": 73010.98188634004}, "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": 19.5}, "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": 54.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "54.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 50.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 55.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.75}, "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": {"2014-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.75, 19.5], [53.97, 20.03], [54.5, 20.25], [55.03, 20.03], [55.18, 19.68], [55.53, 19.53], [55.75, 19.0], [55.53, 18.47], [55.0, 18.25], [54.75, 18.35], [54.68, 18.32], [54.53, 17.97], [54.0, 17.75], [53.47, 17.97], [53.25, 18.5], [53.47, 19.03], [53.82, 19.18], [53.85, 19.25], [53.75, 19.5]]]]}, "2014-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.35, 19.25], [52.25, 19.5], [52.47, 20.03], [52.82, 20.18], [52.97, 20.53], [53.5, 20.75], [53.75, 20.65], [54.0, 20.75], [54.25, 20.65], [54.5, 20.75], [55.03, 20.53], [55.18, 20.18], [55.53, 20.03], [55.75, 19.5], [55.65, 19.25], [55.75, 19.0], [55.53, 18.47], [55.0, 18.25], [54.75, 18.35], [54.68, 18.32], [54.53, 17.97], [54.18, 17.82], [54.03, 17.47], [53.5, 17.25], [52.97, 17.47], [52.82, 17.82], [52.47, 17.97], [52.25, 18.5], [52.35, 18.75], [52.25, 19.0], [52.35, 19.25]]]]}, "2014-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.25, 19.0], [50.47, 19.53], [50.82, 19.68], [50.97, 20.03], [51.5, 20.25], [51.75, 20.15], [52.0, 20.25], [52.5, 20.04], [52.82, 20.18], [52.97, 20.53], [53.5, 20.75], [53.75, 20.65], [54.0, 20.75], [54.25, 20.65], [54.5, 20.75], [55.03, 20.53], [55.18, 20.18], [55.53, 20.03], [55.75, 19.5], [55.65, 19.25], [55.75, 19.0], [55.53, 18.47], [55.0, 18.25], [54.75, 18.35], [54.68, 18.32], [54.53, 17.97], [54.18, 17.82], [54.03, 17.47], [53.5, 17.25], [52.97, 17.47], [52.82, 17.82], [52.5, 17.96], [52.0, 17.75], [51.75, 17.85], [51.5, 17.75], [50.97, 17.97], [50.82, 18.32], [50.47, 18.47], [50.25, 19.0]]]]}, "2014-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.25, 19.0], [50.47, 19.53], [50.82, 19.68], [50.97, 20.03], [51.5, 20.25], [51.75, 20.15], [52.0, 20.25], [52.5, 20.04], [52.82, 20.18], [52.97, 20.53], [53.5, 20.75], [53.75, 20.65], [54.0, 20.75], [54.25, 20.65], [54.5, 20.75], [55.03, 20.53], [55.18, 20.18], [55.53, 20.03], [55.75, 19.5], [55.65, 19.25], [55.75, 19.0], [55.53, 18.47], [55.0, 18.25], [54.75, 18.35], [54.68, 18.32], [54.53, 17.97], [54.18, 17.82], [54.03, 17.47], [53.5, 17.25], [52.97, 17.47], [52.82, 17.82], [52.5, 17.96], [52.0, 17.75], [51.75, 17.85], [51.5, 17.75], [50.97, 17.97], [50.82, 18.32], [50.47, 18.47], [50.25, 19.0]]]]}, "2014-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.25, 19.0], [50.47, 19.53], [50.82, 19.68], [50.97, 20.03], [51.5, 20.25], [51.75, 20.15], [52.0, 20.25], [52.53, 20.03], [52.68, 19.68], [53.03, 19.53], [53.25, 19.0], [53.03, 18.47], [52.68, 18.32], [52.53, 17.97], [52.0, 17.75], [51.75, 17.85], [51.5, 17.75], [50.97, 17.97], [50.82, 18.32], [50.47, 18.47], [50.25, 19.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.617937771957884}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.429894872382835}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.04844016297591, 33.00855850891173, 33.050929793169416, 32.71148388085567, 34.565270924473225]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.12002555050816, 30.490256065323763, 30.425297604088655, 30.696716906444806, 33.79754460887068]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.070789065202618, -2.20682169016406, -2.510544277542283, -2.779632614352831, -1.7385184534083251]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.2756798828605156, -2.652076004090304, -3.617937771957884, -3.297938480867174, -1.8711314955036187]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4209994880219858, -1.5593787163474009, -1.886763933166185, -2.1693628963290497, -1.6424582532635994]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.552338641195102, -1.8104122372258422, -2.2615938482306577, -2.787042300255548, -1.8889069309287325]}}