{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:52.024071", "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": "2016-Mar-02_to_2016-Mar-05_261.5_17.5"}, "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": 2016030000095}, "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": "March 02 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 05 2016"}, "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": 67666.01233626156}, "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": ["Mexico"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America", "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": []}, "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": 17.5}, "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": 261.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "261.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 258.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 263.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-03-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.53, 17.47], [-101.75, 18.0], [-101.53, 18.53], [-101.0, 18.75], [-100.75, 18.65], [-100.5, 18.75], [-100.25, 18.65], [-100.18, 18.68], [-100.03, 19.03], [-99.5, 19.25], [-99.25, 19.15], [-99.18, 19.18], [-99.15, 19.25], [-99.25, 19.5], [-99.03, 20.03], [-98.5, 20.25], [-97.97, 20.03], [-97.82, 19.68], [-97.47, 19.53], [-97.25, 19.0], [-97.47, 18.47], [-97.87, 18.3], [-97.82, 18.18], [-97.47, 18.03], [-97.25, 17.5], [-97.47, 16.97], [-98.0, 16.75], [-98.25, 16.85], [-98.5, 16.75], [-98.75, 16.85], [-99.0, 16.75], [-99.25, 16.85], [-99.5, 16.75], [-99.75, 16.85], [-100.0, 16.75], [-100.53, 16.97], [-100.68, 17.32], [-100.75, 17.35], [-101.0, 17.25], [-101.53, 17.47]]]]}, "2016-03-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.53, 17.47], [-101.75, 18.0], [-101.53, 18.53], [-101.0, 18.75], [-100.75, 18.65], [-100.5, 18.75], [-100.25, 18.65], [-100.18, 18.68], [-100.03, 19.03], [-99.62, 19.2], [-99.75, 19.5], [-99.53, 20.03], [-99.0, 20.25], [-98.75, 20.15], [-98.5, 20.25], [-97.97, 20.03], [-97.82, 19.68], [-97.47, 19.53], [-97.25, 19.0], [-97.47, 18.47], [-97.87, 18.3], [-97.82, 18.18], [-97.47, 18.03], [-97.32, 17.68], [-97.25, 17.65], [-97.0, 17.75], [-96.47, 17.53], [-96.25, 17.0], [-96.35, 16.75], [-96.25, 16.5], [-96.47, 15.97], [-97.0, 15.75], [-97.25, 15.85], [-97.5, 15.75], [-98.03, 15.97], [-98.18, 16.32], [-98.25, 16.35], [-98.5, 16.25], [-99.03, 16.47], [-99.18, 16.82], [-99.25, 16.85], [-99.5, 16.75], [-99.75, 16.85], [-100.0, 16.75], [-100.53, 16.97], [-100.68, 17.32], [-100.75, 17.35], [-101.0, 17.25], [-101.53, 17.47]]]]}, "2016-03-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.53, 17.47], [-101.75, 18.0], [-101.53, 18.53], [-101.0, 18.75], [-100.75, 18.65], [-100.5, 18.75], [-100.25, 18.65], [-100.18, 18.68], [-100.03, 19.03], [-99.62, 19.2], [-99.75, 19.5], [-99.53, 20.03], [-99.0, 20.25], [-98.75, 20.15], [-98.5, 20.25], [-97.97, 20.03], [-97.82, 19.68], [-97.47, 19.53], [-97.25, 19.0], [-97.47, 18.47], [-97.87, 18.3], [-97.82, 18.18], [-97.47, 18.03], [-97.32, 17.68], [-97.25, 17.65], [-97.0, 17.75], [-96.47, 17.53], [-96.25, 17.0], [-96.35, 16.75], [-96.25, 16.5], [-96.47, 15.97], [-97.0, 15.75], [-97.25, 15.85], [-97.5, 15.75], [-98.03, 15.97], [-98.18, 16.32], [-98.25, 16.35], [-98.5, 16.25], [-99.03, 16.47], [-99.18, 16.82], [-99.25, 16.85], [-99.5, 16.75], [-99.75, 16.85], [-100.0, 16.75], [-100.53, 16.97], [-100.68, 17.32], [-100.75, 17.35], [-101.0, 17.25], [-101.53, 17.47]]]]}, "2016-03-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.25, 18.0], [-101.03, 18.53], [-100.5, 18.75], [-100.25, 18.65], [-100.18, 18.68], [-100.03, 19.03], [-99.62, 19.2], [-99.75, 19.5], [-99.53, 20.03], [-99.0, 20.25], [-98.75, 20.15], [-98.5, 20.25], [-97.97, 20.03], [-97.82, 19.68], [-97.47, 19.53], [-97.25, 19.0], [-97.47, 18.47], [-97.87, 18.3], [-97.82, 18.18], [-97.47, 18.03], [-97.32, 17.68], [-97.25, 17.65], [-97.0, 17.75], [-96.47, 17.53], [-96.25, 17.0], [-96.35, 16.75], [-96.25, 16.5], [-96.47, 15.97], [-97.0, 15.75], [-97.25, 15.85], [-97.5, 15.75], [-98.03, 15.97], [-98.18, 16.32], [-98.25, 16.35], [-98.5, 16.25], [-99.03, 16.47], [-99.18, 16.82], [-99.25, 16.85], [-99.5, 16.75], [-99.75, 16.85], [-100.0, 16.75], [-100.53, 16.97], [-100.68, 17.32], [-101.03, 17.47], [-101.25, 18.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.843864674201711}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.9102996992798142}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.495030740606808, 18.39897523169293, 17.241033300413676, 17.41066134338797]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.183147730049825, 11.724254403818634, 11.112340313909272, 10.173692002910855]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.765798867638555, -2.207974812271783, -3.394313004981857, -3.243626048202445]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.973290349308513, -3.0882017320804493, -4.843864674201711, -4.746625645229017]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.155596423727626, -1.81511895802904, -2.694642100117178, -2.4588297565422628]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.209478198880954, -2.619436461740867, -3.690626258145138, -3.7291619294668963]}}