{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:17.353211", "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": "2015-Feb-12_to_2015-Feb-15_278.0_21.5"}, "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": 2015020000546}, "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": "February 12 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 15 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 83894.7775485654}, "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": ["Cuba"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean", "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": 21.5}, "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": 278.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "278.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 274.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 278.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.75, 22.0], [-84.53, 22.53], [-84.0, 22.75], [-83.75, 22.65], [-83.5, 22.75], [-83.25, 22.65], [-83.0, 22.75], [-82.47, 22.53], [-82.32, 22.18], [-82.25, 22.15], [-82.0, 22.25], [-81.47, 22.03], [-81.25, 21.5], [-81.47, 20.97], [-82.0, 20.75], [-82.25, 20.85], [-82.5, 20.75], [-82.75, 20.85], [-83.0, 20.75], [-83.25, 20.85], [-83.5, 20.75], [-84.03, 20.97], [-84.18, 21.32], [-84.53, 21.47], [-84.75, 22.0]]]]}, "2015-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.53, 19.53], [-85.18, 19.68], [-85.15, 19.75], [-85.25, 20.0], [-85.15, 20.25], [-85.25, 20.5], [-85.15, 20.75], [-85.25, 21.0], [-85.15, 21.25], [-85.25, 21.5], [-85.03, 22.03], [-84.68, 22.18], [-84.53, 22.53], [-84.0, 22.75], [-83.75, 22.65], [-83.5, 22.75], [-83.25, 22.65], [-83.0, 22.75], [-82.47, 22.53], [-82.32, 22.18], [-82.25, 22.15], [-82.0, 22.25], [-81.47, 22.03], [-81.25, 21.5], [-81.35, 21.25], [-81.25, 21.0], [-81.47, 20.47], [-81.82, 20.32], [-81.97, 19.97], [-82.5, 19.75], [-82.75, 19.85], [-82.82, 19.82], [-82.97, 19.47], [-83.32, 19.32], [-83.47, 18.97], [-83.82, 18.82], [-83.85, 18.75], [-83.75, 18.5], [-83.97, 17.97], [-84.5, 17.75], [-84.75, 17.85], [-85.0, 17.75], [-85.53, 17.97], [-85.75, 18.5], [-85.65, 18.75], [-85.75, 19.0], [-85.53, 19.53]]]]}, "2015-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.53, 19.53], [-85.18, 19.68], [-85.15, 19.75], [-85.25, 20.0], [-85.15, 20.25], [-85.25, 20.5], [-85.15, 20.75], [-85.25, 21.0], [-85.15, 21.25], [-85.25, 21.5], [-85.03, 22.03], [-84.68, 22.18], [-84.53, 22.53], [-84.0, 22.75], [-83.75, 22.65], [-83.5, 22.75], [-83.25, 22.65], [-83.0, 22.75], [-82.47, 22.53], [-82.32, 22.18], [-82.25, 22.15], [-82.0, 22.25], [-81.47, 22.03], [-81.25, 21.5], [-81.35, 21.25], [-81.25, 21.0], [-81.47, 20.47], [-81.82, 20.32], [-81.97, 19.97], [-82.5, 19.75], [-82.75, 19.85], [-82.82, 19.82], [-82.97, 19.47], [-83.32, 19.32], [-83.47, 18.97], [-83.82, 18.82], [-83.85, 18.75], [-83.75, 18.5], [-83.97, 17.97], [-84.5, 17.75], [-84.75, 17.85], [-85.0, 17.75], [-85.53, 17.97], [-85.75, 18.5], [-85.65, 18.75], [-85.75, 19.0], [-85.53, 19.53]]]]}, "2015-02-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.53, 19.53], [-85.18, 19.68], [-85.15, 19.75], [-85.25, 20.0], [-85.15, 20.25], [-85.25, 20.5], [-85.15, 20.75], [-85.25, 21.0], [-85.15, 21.25], [-85.25, 21.5], [-85.03, 22.03], [-84.68, 22.18], [-84.53, 22.53], [-84.0, 22.75], [-83.75, 22.65], [-83.5, 22.75], [-83.25, 22.65], [-83.0, 22.75], [-82.47, 22.53], [-82.32, 22.18], [-82.25, 22.15], [-82.0, 22.25], [-81.47, 22.03], [-81.25, 21.5], [-81.35, 21.25], [-81.25, 21.0], [-81.47, 20.47], [-81.82, 20.32], [-81.97, 19.97], [-82.5, 19.75], [-82.75, 19.85], [-82.82, 19.82], [-82.97, 19.47], [-83.32, 19.32], [-83.47, 18.97], [-83.82, 18.82], [-83.85, 18.75], [-83.75, 18.5], [-83.97, 17.97], [-84.5, 17.75], [-84.75, 17.85], [-85.0, 17.75], [-85.53, 17.97], [-85.75, 18.5], [-85.65, 18.75], [-85.75, 19.0], [-85.53, 19.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.651645119941236}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.5349037584456737}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.889422971471504, 22.379072443050518, 22.17724754205392, 21.606646691521632]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.17545784545348, 20.40254542727132, 19.9730628724393, 19.090671441602524]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7840480867847646, -2.2033723596567807, -2.40266511639415, -2.9385355131352755]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.2471361397472265, -3.181183588115175, -3.425017934487755, -4.651645119941236]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.672781799173055, -1.7193736403422155, -1.8635673401326334, -2.2018885233732854]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7631084753073503, -1.9153268010748707, -2.2876599872394143, -2.3898077138856904]}}