{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:41.972574", "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": "2010-May-26_to_2010-May-30_273.5_13.0"}, "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": 2010050000808}, "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 26 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 30 2010"}, "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": 66070.27060440679}, "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": ["El Salvador", "Guatemala", "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": ["North Pacific Ocean"]}, "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": 13.0}, "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": 273.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "273.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 269.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 274.25}, "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": 15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-87.75, 13.0], [-87.53, 13.53], [-87.0, 13.75], [-86.75, 13.65], [-86.5, 13.75], [-85.97, 13.53], [-85.82, 13.18], [-85.47, 13.03], [-85.25, 12.5], [-85.47, 11.97], [-86.0, 11.75], [-86.25, 11.85], [-86.5, 11.75], [-87.03, 11.97], [-87.18, 12.32], [-87.53, 12.47], [-87.75, 13.0]]]]}, "2010-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.15, 14.25], [-90.25, 14.5], [-90.03, 15.03], [-89.5, 15.25], [-88.97, 15.03], [-88.82, 14.68], [-88.75, 14.65], [-88.5, 14.75], [-88.25, 14.65], [-88.0, 14.75], [-87.75, 14.65], [-87.5, 14.75], [-87.25, 14.65], [-87.0, 14.75], [-86.47, 14.53], [-86.25, 14.0], [-86.35, 13.75], [-86.32, 13.68], [-85.97, 13.53], [-85.82, 13.18], [-85.47, 13.03], [-85.25, 12.5], [-85.47, 11.97], [-86.0, 11.75], [-86.25, 11.85], [-86.5, 11.75], [-87.03, 11.97], [-87.18, 12.32], [-87.53, 12.47], [-87.68, 12.82], [-87.75, 12.85], [-87.82, 12.82], [-87.97, 12.47], [-88.5, 12.25], [-89.03, 12.47], [-89.18, 12.82], [-89.25, 12.85], [-89.5, 12.75], [-90.03, 12.97], [-90.25, 13.5], [-90.15, 13.75], [-90.25, 14.0], [-90.15, 14.25]]]]}, "2010-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.03, 13.47], [-91.25, 14.0], [-91.03, 14.53], [-90.5, 14.75], [-90.25, 14.65], [-90.18, 14.68], [-90.15, 14.75], [-90.25, 15.0], [-90.03, 15.53], [-89.5, 15.75], [-88.97, 15.53], [-88.82, 15.18], [-88.47, 15.03], [-88.32, 14.68], [-88.25, 14.65], [-88.0, 14.75], [-87.75, 14.65], [-87.5, 14.75], [-87.25, 14.65], [-87.0, 14.75], [-86.47, 14.53], [-86.25, 14.0], [-86.35, 13.75], [-86.32, 13.68], [-85.97, 13.53], [-85.82, 13.18], [-85.47, 13.03], [-85.25, 12.5], [-85.47, 11.97], [-86.0, 11.75], [-86.25, 11.85], [-86.5, 11.75], [-87.03, 11.97], [-87.18, 12.32], [-87.53, 12.47], [-87.68, 12.82], [-87.75, 12.85], [-87.82, 12.82], [-87.97, 12.47], [-88.5, 12.25], [-89.03, 12.47], [-89.18, 12.82], [-89.25, 12.85], [-89.5, 12.75], [-90.03, 12.97], [-90.18, 13.32], [-90.25, 13.35], [-90.5, 13.25], [-91.03, 13.47]]]]}, "2010-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.03, 13.47], [-91.25, 14.0], [-91.03, 14.53], [-90.5, 14.75], [-90.25, 14.65], [-90.18, 14.68], [-90.15, 14.75], [-90.25, 15.0], [-90.03, 15.53], [-89.5, 15.75], [-88.97, 15.53], [-88.82, 15.18], [-88.47, 15.03], [-88.32, 14.68], [-88.25, 14.65], [-88.0, 14.75], [-87.75, 14.65], [-87.5, 14.75], [-87.25, 14.65], [-87.0, 14.75], [-86.47, 14.53], [-86.25, 14.0], [-86.35, 13.75], [-86.32, 13.68], [-85.97, 13.53], [-85.75, 13.0], [-85.97, 12.47], [-86.5, 12.25], [-87.03, 12.47], [-87.18, 12.82], [-87.25, 12.85], [-87.5, 12.75], [-87.75, 12.85], [-87.82, 12.82], [-87.97, 12.47], [-88.5, 12.25], [-89.03, 12.47], [-89.18, 12.82], [-89.25, 12.85], [-89.5, 12.75], [-90.03, 12.97], [-90.18, 13.32], [-90.25, 13.35], [-90.5, 13.25], [-91.03, 13.47]]]]}, "2010-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.03, 13.47], [-91.25, 14.0], [-91.03, 14.53], [-90.5, 14.75], [-90.25, 14.65], [-90.18, 14.68], [-90.15, 14.75], [-90.25, 15.0], [-90.03, 15.53], [-89.5, 15.75], [-88.97, 15.53], [-88.82, 15.18], [-88.47, 15.03], [-88.32, 14.68], [-88.25, 14.65], [-88.0, 14.75], [-87.75, 14.65], [-87.5, 14.75], [-87.25, 14.65], [-87.0, 14.75], [-86.47, 14.53], [-86.25, 14.0], [-86.35, 13.75], [-86.32, 13.68], [-85.97, 13.53], [-85.75, 13.0], [-85.97, 12.47], [-86.5, 12.25], [-87.03, 12.47], [-87.18, 12.82], [-87.25, 12.85], [-87.5, 12.75], [-87.75, 12.85], [-88.0, 12.75], [-88.25, 12.85], [-88.5, 12.75], [-88.75, 12.85], [-89.0, 12.75], [-89.25, 12.85], [-89.5, 12.75], [-90.03, 12.97], [-90.18, 13.32], [-90.25, 13.35], [-90.5, 13.25], [-91.03, 13.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.2695755938823368}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.12200981575936}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.0000795545987, 23.631746116277895, 23.62244610073583, 22.888110051721753, 22.357941477665065]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.806569932063894, 20.699614149197487, 19.878924391841792, 19.371945394976876, 19.05279742067495]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3261820267697573, -2.157291433686437, -1.8167701022889533, -2.1080661582544646, -2.4291456614378593]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.6218775445403253, -3.1647856270022885, -2.5243619931812304, -2.967286097588044, -3.2695755938823368]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5368801132394485, -1.7304788862624292, -1.5373301722914137, -1.876503031716968, -2.1148999274794855]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9062228937233099, -2.0502214588900722, -1.8034588262344076, -2.38849328635783, -2.5392079004887216]}}