{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:49.342978", "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-Jul-27_to_2016-Jul-31_258.5_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": 2016070000920}, "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": "July 27 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2016"}, "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": 110445.80548801698}, "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": 258.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "258.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 254.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 259.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.65, 27.75], [-102.75, 28.0], [-102.53, 28.53], [-102.18, 28.68], [-102.03, 29.03], [-101.5, 29.25], [-100.97, 29.03], [-100.82, 28.68], [-100.75, 28.65], [-100.5, 28.75], [-99.97, 28.53], [-99.75, 28.0], [-99.85, 27.75], [-99.75, 27.5], [-99.97, 26.97], [-100.32, 26.82], [-100.47, 26.47], [-100.82, 26.32], [-100.97, 25.97], [-101.5, 25.75], [-102.03, 25.97], [-102.18, 26.32], [-102.53, 26.47], [-102.75, 27.0], [-102.65, 27.25], [-102.75, 27.5], [-102.65, 27.75]]]]}, "2016-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.65, 26.75], [-103.75, 27.0], [-103.65, 27.25], [-103.75, 27.5], [-103.65, 27.75], [-103.75, 28.0], [-103.53, 28.53], [-103.0, 28.75], [-102.5, 28.54], [-102.18, 28.68], [-102.03, 29.03], [-101.5, 29.25], [-100.97, 29.03], [-100.82, 28.68], [-100.75, 28.65], [-100.5, 28.75], [-99.97, 28.53], [-99.75, 28.0], [-99.85, 27.75], [-99.75, 27.5], [-99.97, 26.97], [-100.32, 26.82], [-100.47, 26.47], [-100.82, 26.32], [-100.85, 26.25], [-100.82, 26.18], [-100.47, 26.03], [-100.25, 25.5], [-100.47, 24.97], [-101.0, 24.75], [-101.25, 24.85], [-101.5, 24.75], [-101.75, 24.85], [-102.0, 24.75], [-102.25, 24.85], [-102.5, 24.75], [-103.03, 24.97], [-103.18, 25.32], [-103.53, 25.47], [-103.75, 26.0], [-103.65, 26.25], [-103.75, 26.5], [-103.65, 26.75]]]]}, "2016-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.75, 26.5], [-105.53, 27.03], [-105.18, 27.18], [-105.03, 27.53], [-104.5, 27.75], [-104.25, 27.65], [-104.0, 27.75], [-103.7, 27.62], [-103.65, 27.75], [-103.75, 28.0], [-103.53, 28.53], [-103.0, 28.75], [-102.5, 28.54], [-102.18, 28.68], [-102.03, 29.03], [-101.5, 29.25], [-100.97, 29.03], [-100.82, 28.68], [-100.75, 28.65], [-100.5, 28.75], [-99.97, 28.53], [-99.75, 28.0], [-99.85, 27.75], [-99.75, 27.5], [-99.97, 26.97], [-100.32, 26.82], [-100.47, 26.47], [-100.82, 26.32], [-100.85, 26.25], [-100.82, 26.18], [-100.47, 26.03], [-100.25, 25.5], [-100.47, 24.97], [-101.0, 24.75], [-101.25, 24.85], [-101.5, 24.75], [-101.75, 24.85], [-102.0, 24.75], [-102.25, 24.85], [-102.5, 24.75], [-102.75, 24.85], [-102.82, 24.82], [-102.97, 24.47], [-103.5, 24.25], [-104.03, 24.47], [-104.18, 24.82], [-104.53, 24.97], [-104.68, 25.32], [-105.03, 25.47], [-105.18, 25.82], [-105.53, 25.97], [-105.75, 26.5]]]]}, "2016-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.75, 26.5], [-105.53, 27.03], [-105.18, 27.18], [-105.03, 27.53], [-104.5, 27.75], [-104.25, 27.65], [-104.0, 27.75], [-103.7, 27.62], [-103.65, 27.75], [-103.75, 28.0], [-103.53, 28.53], [-103.0, 28.75], [-102.5, 28.54], [-102.0, 28.75], [-101.75, 28.65], [-101.5, 28.75], [-101.25, 28.65], [-101.0, 28.75], [-100.47, 28.53], [-100.25, 28.0], [-100.35, 27.75], [-100.25, 27.5], [-100.35, 27.25], [-100.25, 27.0], [-100.47, 26.47], [-100.82, 26.32], [-100.85, 26.25], [-100.82, 26.18], [-100.47, 26.03], [-100.25, 25.5], [-100.47, 24.97], [-101.0, 24.75], [-101.25, 24.85], [-101.5, 24.75], [-101.75, 24.85], [-102.0, 24.75], [-102.25, 24.85], [-102.5, 24.75], [-102.75, 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entire duration", "value": -3.8071945072868316}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.17091146994835, 23.66832393647553, 23.10667751528308, 22.857362919674244, 23.426951813061578]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.065225800199926, 20.166798198138224, 19.901374926807307, 19.813070482710998, 20.94708992215004]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.574088927080136, -3.4983542191611345, -3.9078230900746123, -3.864464933533367, -3.2107438252617677]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.751069291644171, -5.198089092242071, -5.637855788927368, -5.056609339093029, -3.5779933145692553]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.1003290289492442, -1.7658243787098078, -1.9543012840481147, -1.9461904731871638, -1.5500012938208656]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.6646200038141834, -2.246631966924578, -2.514071576873697, -2.478289950956655, -1.8097212336962867]}}