{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:48.064650", "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-May-05_to_2017-May-09_276.5_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": 2017050000231}, "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": "May 05 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 09 2017"}, "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": 50981.932258120236}, "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": ["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": 276.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "276.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 274.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 277.75}, "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": {"2017-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.25, 13.0], [-86.03, 13.53], [-85.5, 13.75], [-85.25, 13.65], [-85.18, 13.68], [-85.03, 14.03], [-84.68, 14.18], [-84.65, 14.25], [-84.75, 14.5], [-84.53, 15.03], [-84.0, 15.25], [-83.47, 15.03], [-83.25, 14.5], [-83.35, 14.25], [-83.25, 14.0], [-83.47, 13.47], [-83.82, 13.32], [-83.85, 13.25], [-83.75, 13.0], [-83.97, 12.47], [-84.32, 12.32], [-84.47, 11.97], [-85.0, 11.75], [-85.53, 11.97], [-85.68, 12.32], [-86.03, 12.47], [-86.25, 13.0]]]]}, "2017-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.25, 13.0], [-86.03, 13.53], [-85.5, 13.75], [-85.25, 13.65], [-85.18, 13.68], [-85.03, 14.03], [-84.68, 14.18], [-84.65, 14.25], [-84.75, 14.5], [-84.53, 15.03], [-84.18, 15.18], [-84.03, 15.53], [-83.5, 15.75], [-82.97, 15.53], [-82.75, 15.0], [-82.85, 14.75], [-82.75, 14.5], [-82.85, 14.25], [-82.75, 14.0], [-82.97, 13.47], [-83.32, 13.32], [-83.47, 12.97], [-83.82, 12.82], [-83.97, 12.47], [-84.32, 12.32], [-84.47, 11.97], [-85.0, 11.75], [-85.53, 11.97], [-85.68, 12.32], [-86.03, 12.47], [-86.25, 13.0]]]]}, "2017-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.25, 13.0], [-86.03, 13.53], [-85.5, 13.75], [-85.25, 13.65], [-85.18, 13.68], [-85.03, 14.03], [-84.68, 14.18], [-84.65, 14.25], [-84.75, 14.5], [-84.53, 15.03], [-84.18, 15.18], [-84.15, 15.25], [-84.25, 15.5], [-84.03, 16.03], [-83.5, 16.25], [-82.97, 16.03], [-82.82, 15.68], [-82.75, 15.65], [-82.5, 15.75], [-81.97, 15.53], [-81.75, 15.0], [-81.97, 14.47], [-82.32, 14.32], [-82.35, 14.25], [-82.25, 14.0], [-82.47, 13.47], [-82.82, 13.32], [-82.97, 12.97], [-83.5, 12.75], [-83.75, 12.85], [-83.82, 12.82], [-83.97, 12.47], [-84.32, 12.32], [-84.47, 11.97], [-85.0, 11.75], [-85.53, 11.97], [-85.68, 12.32], [-86.03, 12.47], [-86.25, 13.0]]]]}, "2017-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.75, 14.0], [-84.53, 14.53], [-84.18, 14.68], [-84.15, 14.75], [-84.25, 15.0], [-84.15, 15.25], [-84.25, 15.5], [-84.03, 16.03], [-83.5, 16.25], [-82.97, 16.03], [-82.82, 15.68], [-82.75, 15.65], [-82.5, 15.75], [-81.97, 15.53], [-81.75, 15.0], [-81.97, 14.47], [-82.32, 14.32], [-82.35, 14.25], [-82.25, 14.0], [-82.47, 13.47], [-82.82, 13.32], [-82.97, 12.97], [-83.5, 12.75], [-83.75, 12.85], [-83.82, 12.82], [-83.97, 12.47], [-84.5, 12.25], [-85.03, 12.47], [-85.25, 13.0], [-85.03, 13.53], [-84.68, 13.68], [-84.65, 13.75], [-84.75, 14.0]]]]}, "2017-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.15, 14.25], [-84.25, 14.5], [-84.04, 15.0], [-84.25, 15.5], [-84.03, 16.03], [-83.5, 16.25], [-82.97, 16.03], [-82.82, 15.68], [-82.75, 15.65], [-82.5, 15.75], [-81.97, 15.53], [-81.75, 15.0], [-81.97, 14.47], [-82.32, 14.32], [-82.35, 14.25], [-82.25, 14.0], [-82.47, 13.47], [-82.82, 13.32], [-82.97, 12.97], [-83.5, 12.75], [-84.03, 12.97], [-84.25, 13.5], [-84.15, 13.75], [-84.25, 14.0], [-84.15, 14.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.6621167651493352}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.144748986829765}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.72244344485307, 25.728892606182285, 26.061164068673975, 26.192220055982887, 26.324958346847723]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.527964224000527, 24.20654865940304, 24.593124811160976, 26.022839090792218, 26.140729380031587]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2398933132835575, -1.3976926778072374, -1.0763864793887459, -1.1101060923490138, -0.910934796121964]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3029655721499012, -1.6621167651493352, -1.6316096482439093, -1.4594141184681462, -1.1610798829149758]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5882548440666036, -1.8157284496279529, -1.537283429874359, -1.694871752123105, -1.5359621925940354]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.736431112298272, -2.019343493300809, -1.9775953657331735, -2.1328017522456295, -1.8274956461941534]}}