{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:18:45.790990", "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": "2020-Feb-05_to_2020-Feb-08_251.0_26.0"}, "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": 2020020000263}, "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": "February 05 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 08 2020"}, "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": 58168.88653726862}, "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": 26.0}, "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": 251.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "251.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 249.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 253.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.25}, "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": {"2020-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.75, 27.5], [-110.53, 28.03], [-110.18, 28.18], [-110.03, 28.53], [-109.5, 28.75], [-108.97, 28.53], [-108.82, 28.18], [-108.75, 28.15], [-108.5, 28.25], [-107.97, 28.03], [-107.82, 27.68], [-107.47, 27.53], [-107.25, 27.0], [-107.35, 26.75], [-107.32, 26.68], [-106.97, 26.53], [-106.75, 26.0], [-106.85, 25.75], [-106.82, 25.68], [-106.47, 25.53], [-106.25, 25.0], [-106.47, 24.47], [-107.0, 24.25], [-107.53, 24.47], [-107.68, 24.82], [-107.75, 24.85], [-108.0, 24.75], [-108.25, 24.85], [-108.5, 24.75], [-109.03, 24.97], [-109.18, 25.32], [-109.53, 25.47], [-109.75, 26.0], [-109.65, 26.25], [-109.68, 26.32], [-110.03, 26.47], [-110.18, 26.82], [-110.53, 26.97], [-110.75, 27.5]]]]}, "2020-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.75, 27.5], [-110.53, 28.03], [-110.18, 28.18], [-110.03, 28.53], [-109.5, 28.75], [-108.97, 28.53], [-108.82, 28.18], [-108.75, 28.15], [-108.5, 28.25], [-107.97, 28.03], [-107.82, 27.68], [-107.47, 27.53], [-107.25, 27.0], [-107.35, 26.75], [-107.32, 26.68], [-106.97, 26.53], [-106.75, 26.0], [-106.85, 25.75], [-106.82, 25.68], [-106.47, 25.53], [-106.25, 25.0], [-106.47, 24.47], [-106.82, 24.32], [-106.97, 23.97], [-107.5, 23.75], [-108.03, 23.97], [-108.25, 24.5], [-108.15, 24.75], [-108.18, 24.82], [-108.25, 24.85], [-108.5, 24.75], [-109.03, 24.97], [-109.18, 25.32], [-109.53, 25.47], [-109.75, 26.0], [-109.65, 26.25], [-109.68, 26.32], [-110.03, 26.47], [-110.18, 26.82], [-110.53, 26.97], [-110.75, 27.5]]]]}, "2020-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.75, 27.5], [-110.53, 28.03], [-110.18, 28.18], [-110.03, 28.53], [-109.5, 28.75], [-108.97, 28.53], [-108.82, 28.18], [-108.75, 28.15], [-108.5, 28.25], [-107.97, 28.03], [-107.82, 27.68], [-107.47, 27.53], [-107.25, 27.0], [-107.35, 26.75], [-107.32, 26.68], [-106.97, 26.53], [-106.75, 26.0], [-106.85, 25.75], [-106.82, 25.68], [-106.47, 25.53], [-106.25, 25.0], [-106.47, 24.47], [-106.82, 24.32], [-106.97, 23.97], [-107.5, 23.75], [-108.03, 23.97], [-108.25, 24.5], [-108.15, 24.75], [-108.18, 24.82], [-108.25, 24.85], [-108.5, 24.75], [-109.03, 24.97], [-109.18, 25.32], [-109.53, 25.47], [-109.75, 26.0], [-109.65, 26.25], [-109.68, 26.32], [-110.03, 26.47], [-110.18, 26.82], [-110.53, 26.97], [-110.75, 27.5]]]]}, "2020-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.75, 26.0], [-109.53, 26.53], [-109.0, 26.75], [-108.47, 26.53], [-108.32, 26.18], [-107.97, 26.03], [-107.8, 25.63], [-107.5, 25.75], [-106.97, 25.53], [-106.75, 25.0], [-106.85, 24.75], [-106.75, 24.5], [-106.97, 23.97], [-107.5, 23.75], [-108.03, 23.97], [-108.25, 24.5], [-108.15, 24.75], [-108.2, 24.88], [-108.5, 24.75], [-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": -8.276253527979065}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.991595359818265}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.354829882440754, 10.130247917827205, 13.464271945971234, 16.894352719314213]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.736812962480656, 4.355838821283385, 8.987068258939928, 15.94078327198929]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.5128981393048155, -7.070194492586454, -3.8287998236059804, -2.45743827533866]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.8283477845490665, -8.276253527979065, -5.458080333545752, -2.7844310652882314]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.0628683891048083, -3.3157304847888, -1.787732080497865, -1.3183840200445707]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.759867788052465, -3.629791019137678, -2.529266290545155, -1.399761525018426]}}