{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:10:58.665458", "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-Jan-15_to_2020-Jan-17_47.0_14.5"}, "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": 2020010000424}, "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": "January 15 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 17 2020"}, "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": 59585.28265415301}, "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": ["Yemen"]}, "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": 14.5}, "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": 47.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "47.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 45.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[44.25, 16.0], [44.47, 16.53], [45.0, 16.75], [45.25, 16.646], [45.5, 16.75], [45.75, 16.646], [46.0, 16.75], [46.25, 16.646], 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"coordinates": [[[44.82322330470336, 15.323223304703363], [44.46966991411009, 15.469669914110089], [44.25, 16.0], [44.46966991411009, 16.53033008588991], [45.0, 16.75], [45.25, 16.646446609406727], [45.5, 16.75], [45.75, 16.646446609406727], [46.0, 16.75], [46.25, 16.646446609406727], [46.5, 16.75], [46.75, 16.646446609406727], [47.0, 16.75], [47.25, 16.646446609406727], [47.5, 16.75], [47.75, 16.646446609406727], [48.0, 16.75], [48.53033008588991, 16.53033008588991], [48.75, 16.0], [48.64644660940672, 15.75], [48.75, 15.5], [48.64644660940672, 15.25], [48.75, 15.0], [48.53033008588991, 14.469669914110089], [48.17677669529664, 14.323223304703363], [48.03033008588991, 13.969669914110089], [47.5, 13.75], [47.25, 13.853553390593275], [47.0, 13.75], [46.46966991411009, 13.969669914110089], [46.32322330470336, 14.323223304703363], [46.25, 14.353553390593275], [46.0, 14.25], [45.46966991411009, 14.469669914110089], [45.32322330470336, 14.823223304703363], [44.96966991411009, 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maximum t2m anomalies.", "value": [-5.576573540573634, -6.563931445569779, -5.086439707378759]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9154360508302368, -2.4361879619194564, -1.7100491560681994]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3704618126484736, -3.295969167352817, -2.0085245888375347]}}