{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:37.923245", "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": "2017-Apr-09_to_2017-Apr-15_275.5_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": 2017040000302}, "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": "April 09 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 15 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 113913.51172040985}, "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": ["Honduras", "Nicaragua"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Central-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": ["Caribbean Sea"]}, "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": 275.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "275.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 273.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 277.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.5, 15.25], [-83.97, 15.03], [-83.75, 14.5], [-83.97, 13.97], [-84.5, 13.75], [-85.03, 13.97], [-85.25, 14.5], [-85.03, 15.03], [-84.5, 15.25]]]]}, "2017-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.15, 14.25], [-85.25, 14.5], [-85.03, 15.03], [-84.5, 15.25], [-84.0, 15.04], [-83.5, 15.25], [-83.25, 15.15], [-83.0, 15.25], [-82.47, 15.03], [-82.25, 14.5], [-82.47, 13.97], [-83.0, 13.75], [-83.25, 13.85], [-83.5, 13.75], [-83.8, 13.88], [-83.85, 13.75], [-83.75, 13.5], [-83.97, 12.97], [-84.5, 12.75], [-85.03, 12.97], [-85.25, 13.5], [-85.15, 13.75], [-85.25, 14.0], [-85.15, 14.25]]]]}, "2017-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.15, 14.75], [-86.25, 15.0], [-86.03, 15.53], [-85.5, 15.75], [-85.0, 15.54], [-84.5, 15.75], [-84.25, 15.65], [-84.18, 15.68], [-84.03, 16.03], [-83.5, 16.25], [-82.97, 16.03], [-82.82, 15.68], [-82.47, 15.53], [-82.25, 15.0], [-82.35, 14.75], [-82.25, 14.5], [-82.35, 14.25], [-82.25, 14.0], [-82.47, 13.47], [-82.82, 13.32], [-82.85, 13.25], [-82.75, 13.0], [-82.97, 12.47], [-83.5, 12.25], [-84.03, 12.47], [-84.2, 12.88], [-84.5, 12.75], [-84.75, 12.85], [-85.0, 12.75], [-85.53, 12.97], [-85.68, 13.32], [-86.03, 13.47], [-86.25, 14.0], [-86.15, 14.25], [-86.25, 14.5], [-86.15, 14.75]]]]}, "2017-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-87.03, 14.53], [-86.68, 14.68], [-86.65, 14.75], [-86.75, 15.0], [-86.53, 15.53], [-86.18, 15.68], [-86.03, 16.03], [-85.5, 16.25], [-85.25, 16.15], [-85.0, 16.25], [-84.47, 16.03], [-84.32, 15.68], [-84.25, 15.65], [-84.18, 15.68], [-84.03, 16.03], [-83.5, 16.25], [-82.97, 16.03], [-82.82, 15.68], [-82.47, 15.53], [-82.25, 15.0], [-82.35, 14.75], [-82.25, 14.5], [-82.35, 14.25], [-82.25, 14.0], [-82.47, 13.47], [-82.82, 13.32], [-82.85, 13.25], [-82.82, 13.18], [-82.47, 13.03], [-82.25, 12.5], [-82.47, 11.97], [-83.0, 11.75], [-83.25, 11.85], [-83.5, 11.75], [-84.03, 11.97], [-84.25, 12.5], [-84.15, 12.75], [-84.2, 12.88], [-84.32, 12.82], [-84.47, 12.47], 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"anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3325247383773668, -1.3093312738374672, -1.576325815720593, -1.764428063119641, -1.5986932848642372, -1.6116470235022398, -1.573603707630796]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3325247383773668, -1.523898949260804, -2.339503720909734, -2.1652097581238876, -2.0956431331525907, -2.223320407198477, -1.8468458684735376]}}