{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:03.500626", "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": "2014-Apr-07_to_2014-Apr-11_268.0_16.5"}, "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": 2014040000287}, "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 07 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 11 2014"}, "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": 67927.34682900415}, "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": ["Guatemala", "Mexico"]}, "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": ["Gulf of Mexico"]}, "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": 16.5}, "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": 268.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "268.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 265.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 269.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.5, 17.25], [-93.97, 17.03], [-93.75, 16.5], [-93.97, 15.97], [-94.5, 15.75], [-95.03, 15.97], [-95.25, 16.5], [-95.03, 17.03], [-94.5, 17.25]]]]}, "2014-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.5, 17.25], [-93.97, 17.03], [-93.75, 16.5], [-93.97, 15.97], [-94.5, 15.75], [-95.03, 15.97], [-95.25, 16.5], [-95.03, 17.03], [-94.5, 17.25]]]]}, "2014-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.03, 17.53], [-94.5, 17.75], [-94.25, 17.65], [-94.18, 17.68], [-94.15, 17.75], [-94.25, 18.0], [-94.03, 18.53], [-93.68, 18.68], [-93.53, 19.03], [-93.0, 19.25], [-92.75, 19.15], [-92.5, 19.25], [-91.97, 19.03], [-91.82, 18.68], [-91.47, 18.53], [-91.25, 18.0], [-91.37, 17.7], [-90.97, 17.53], [-90.82, 17.18], [-90.47, 17.03], [-90.25, 16.5], [-90.47, 15.97], [-90.82, 15.82], [-90.97, 15.47], [-91.5, 15.25], [-91.75, 15.35], [-92.0, 15.25], [-92.53, 15.47], [-92.7, 15.88], [-93.0, 15.75], [-93.25, 15.85], [-93.5, 15.75], [-94.0, 15.96], [-94.5, 15.75], [-95.03, 15.97], [-95.25, 16.5], [-95.15, 16.75], [-95.25, 17.0], [-95.03, 17.53]]]]}, "2014-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.03, 17.53], [-94.5, 17.75], [-94.25, 17.65], [-94.18, 17.68], [-94.15, 17.75], [-94.25, 18.0], [-94.03, 18.53], [-93.68, 18.68], [-93.53, 19.03], [-93.0, 19.25], [-92.75, 19.15], [-92.5, 19.25], [-91.97, 19.03], [-91.82, 18.68], [-91.47, 18.53], [-91.25, 18.0], [-91.37, 17.7], [-90.97, 17.53], [-90.82, 17.18], [-90.47, 17.03], [-90.25, 16.5], [-90.47, 15.97], [-90.82, 15.82], [-90.97, 15.47], [-91.5, 15.25], [-91.75, 15.35], [-92.0, 15.25], [-92.53, 15.47], [-92.7, 15.88], [-93.0, 15.75], [-93.25, 15.85], [-93.5, 15.75], [-94.0, 15.96], [-94.5, 15.75], [-95.03, 15.97], [-95.25, 16.5], [-95.15, 16.75], [-95.25, 17.0], [-95.03, 17.53]]]]}, "2014-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.03, 16.47], [-95.25, 17.0], [-95.03, 17.53], [-94.5, 17.75], [-94.25, 17.65], [-94.18, 17.68], [-94.15, 17.75], [-94.25, 18.0], [-94.03, 18.53], [-93.68, 18.68], [-93.53, 19.03], [-93.0, 19.25], [-92.75, 19.15], [-92.5, 19.25], [-91.97, 19.03], [-91.82, 18.68], [-91.47, 18.53], [-91.25, 18.0], [-91.37, 17.7], [-90.97, 17.53], [-90.82, 17.18], [-90.47, 17.03], [-90.25, 16.5], [-90.47, 15.97], [-90.82, 15.82], [-90.97, 15.47], [-91.5, 15.25], [-91.75, 15.35], [-92.0, 15.25], [-92.53, 15.47], [-92.7, 15.88], [-93.0, 15.75], [-93.25, 15.85], [-93.5, 15.75], [-94.03, 15.97], [-94.18, 16.32], [-94.25, 16.35], [-94.5, 16.25], [-95.03, 16.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.4963900692793}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.8473001537345235}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.072472595724264, 25.520024553299265, 21.075880037719116, 20.599299352173034, 22.089672536981254]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.072472595724264, 25.520024553299265, 12.767380098548358, 13.524288739580868, 15.2389137914667]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.9381463166302524, -1.501953113186687, -4.0578802411380215, -4.582500619147553, -3.0519159793196127]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9381463166302524, -1.501953113186687, -5.221946590397806, -5.4963900692793, -3.9046941953424152]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6156281499309855, -1.2681365211267925, -2.217718926634085, -2.5449302569671413, -1.6583112820407833]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6156281499309855, -1.2681365211267925, -3.388190888712133, -3.187192475936755, -1.9291220790249777]}}