{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:14.408376", "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": "2013-Jan-08_to_2013-Jan-10_253.0_27.0"}, "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": 2013010000323}, "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": "January 08 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 10 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 64000.44595012385}, "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"]}, "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": 27.0}, "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": 253.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "253.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 250.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 254.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.75, 26.0], [-109.53, 26.53], [-109.0, 26.75], [-108.47, 26.53], [-108.32, 26.18], [-108.07, 26.07], [-108.25, 26.5], [-108.15, 26.75], [-108.25, 27.0], [-108.15, 27.25], [-108.25, 27.5], [-108.15, 27.75], [-108.25, 28.0], [-108.03, 28.53], [-107.5, 28.75], [-107.25, 28.65], [-107.0, 28.75], [-106.47, 28.53], [-106.25, 28.0], [-106.35, 27.75], [-106.25, 27.5], [-106.35, 27.25], [-106.32, 27.18], [-105.97, 27.03], [-105.75, 26.5], [-105.85, 26.25], [-105.75, 26.0], [-105.85, 25.75], [-105.82, 25.68], [-105.47, 25.53], [-105.25, 25.0], [-105.47, 24.47], [-105.82, 24.32], [-105.85, 24.25], [-105.82, 24.18], [-105.75, 24.15], [-105.5, 24.25], [-104.97, 24.03], [-104.75, 23.5], [-104.97, 22.97], [-105.5, 22.75], [-105.75, 22.85], [-106.0, 22.75], [-106.53, 22.97], [-106.68, 23.32], [-107.03, 23.47], [-107.18, 23.82], [-107.53, 23.97], [-107.68, 24.32], [-107.75, 24.35], [-108.0, 24.25], [-108.53, 24.47], [-108.68, 24.82], [-109.03, 24.97], [-109.18, 25.32], [-109.53, 25.47], [-109.75, 26.0]]]]}, "2013-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.75, 26.0], [-109.53, 26.53], [-109.0, 26.75], [-108.47, 26.53], [-108.32, 26.18], [-108.07, 26.07], [-108.25, 26.5], [-108.15, 26.75], [-108.25, 27.0], [-108.15, 27.25], [-108.25, 27.5], [-108.15, 27.75], [-108.25, 28.0], [-108.03, 28.53], [-107.5, 28.75], [-107.25, 28.65], [-107.0, 28.75], [-106.47, 28.53], [-106.25, 28.0], [-106.35, 27.75], [-106.25, 27.5], [-106.35, 27.25], [-106.32, 27.18], [-105.97, 27.03], [-105.75, 26.5], [-105.85, 26.25], [-105.75, 26.0], [-105.85, 25.75], [-105.82, 25.68], [-105.47, 25.53], [-105.25, 25.0], [-105.47, 24.47], [-105.82, 24.32], [-105.85, 24.25], [-105.82, 24.18], [-105.75, 24.15], [-105.5, 24.25], [-104.97, 24.03], [-104.75, 23.5], [-104.97, 22.97], [-105.5, 22.75], [-105.75, 22.85], [-106.0, 22.75], [-106.53, 22.97], [-106.68, 23.32], [-107.03, 23.47], [-107.18, 23.82], [-107.53, 23.97], [-107.68, 24.32], [-107.75, 24.35], [-108.0, 24.25], [-108.53, 24.47], [-108.68, 24.82], [-109.03, 24.97], [-109.18, 25.32], [-109.53, 25.47], [-109.75, 26.0]]]]}, "2013-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.75, 26.0], [-109.53, 26.53], [-109.0, 26.75], [-108.47, 26.53], [-108.32, 26.18], [-108.07, 26.07], [-108.25, 26.5], [-108.15, 26.75], [-108.25, 27.0], [-108.15, 27.25], [-108.25, 27.5], [-108.15, 27.75], [-108.25, 28.0], [-108.03, 28.53], [-107.5, 28.75], [-107.25, 28.65], [-107.0, 28.75], [-106.47, 28.53], [-106.25, 28.0], [-106.35, 27.75], [-106.25, 27.5], [-106.35, 27.25], [-106.32, 27.18], [-105.97, 27.03], [-105.75, 26.5], [-105.85, 26.25], [-105.75, 26.0], [-105.85, 25.75], [-105.82, 25.68], [-105.47, 25.53], [-105.25, 25.0], [-105.47, 24.47], [-105.82, 24.32], [-105.85, 24.25], [-105.82, 24.18], [-105.75, 24.15], [-105.5, 24.25], [-104.97, 24.03], [-104.75, 23.5], [-104.97, 22.97], [-105.5, 22.75], [-105.75, 22.85], [-106.0, 22.75], [-106.53, 22.97], [-106.68, 23.32], [-107.03, 23.47], [-107.18, 23.82], [-107.53, 23.97], [-107.68, 24.32], [-107.75, 24.35], [-108.0, 24.25], [-108.53, 24.47], [-108.68, 24.82], [-109.03, 24.97], [-109.18, 25.32], [-109.53, 25.47], [-109.75, 26.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.889858738000896}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.360270234248273}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.223917880653744, 6.154978279949319, 8.216330406614134]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.40579017749877266, -1.687289424892299, 0.05471078874052182]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.775894438425145, -5.754983140406199, -3.5499331239134757]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.0768732850903575, -7.889858738000896, -6.09499501600402]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8188932019235278, -2.751632798483852, -1.6674084170542645]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.286301954193431, -3.5450467188819594, -2.556122232056487]}}