{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:30.983727", "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": "2015-Dec-23_to_2015-Dec-26_257.0_31.5"}, "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": 2015120002223}, "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": "December 23 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 26 2015"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 78880.58131588496}, "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", "United States"]}, "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": 31.5}, "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": 257.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "257.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 251.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 257.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.25, 32.0], [-109.03, 32.53], [-108.5, 32.75], [-108.0, 32.54], [-107.5, 32.75], [-107.25, 32.65], [-107.0, 32.75], [-106.75, 32.65], [-106.68, 32.68], [-106.53, 33.03], [-106.0, 33.25], [-105.47, 33.03], [-105.32, 32.68], [-105.25, 32.65], [-105.18, 32.68], [-105.03, 33.03], [-104.5, 33.25], [-104.25, 33.15], [-104.0, 33.25], [-103.75, 33.15], [-103.5, 33.25], [-102.97, 33.03], [-102.82, 32.68], [-102.47, 32.53], [-102.32, 32.18], [-101.97, 32.03], [-101.75, 31.5], [-101.97, 30.97], [-102.5, 30.75], [-102.75, 30.85], [-103.0, 30.75], [-103.53, 30.97], [-103.68, 31.32], [-103.75, 31.35], [-103.82, 31.32], [-103.85, 31.25], [-103.75, 31.0], [-103.97, 30.47], [-104.5, 30.25], [-104.75, 30.35], [-105.0, 30.25], [-105.25, 30.35], [-105.5, 30.25], [-106.03, 30.47], [-106.18, 30.82], [-106.25, 30.85], [-106.32, 30.82], [-106.47, 30.47], [-107.0, 30.25], [-107.53, 30.47], [-107.68, 30.82], [-107.75, 30.85], [-108.0, 30.75], [-108.53, 30.97], [-108.68, 31.32], [-109.03, 31.47], [-109.25, 32.0]]]]}, "2015-12-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.25, 32.0], [-109.03, 32.53], [-108.5, 32.75], [-108.0, 32.54], [-107.5, 32.75], [-107.25, 32.65], [-107.0, 32.75], [-106.75, 32.65], [-106.68, 32.68], [-106.53, 33.03], [-106.0, 33.25], [-105.47, 33.03], [-105.32, 32.68], [-105.25, 32.65], [-105.18, 32.68], [-105.03, 33.03], [-104.5, 33.25], [-104.25, 33.15], [-104.0, 33.25], [-103.75, 33.15], [-103.5, 33.25], [-102.97, 33.03], [-102.82, 32.68], [-102.47, 32.53], [-102.32, 32.18], [-101.97, 32.03], [-101.75, 31.5], [-101.97, 30.97], [-102.5, 30.75], [-102.75, 30.85], [-103.0, 30.75], [-103.53, 30.97], [-103.68, 31.32], [-103.75, 31.35], [-103.82, 31.32], [-103.85, 31.25], [-103.75, 31.0], [-103.97, 30.47], [-104.32, 30.32], [-104.47, 29.97], [-105.0, 29.75], [-105.53, 29.97], [-105.68, 30.32], [-106.03, 30.47], [-106.18, 30.82], [-106.25, 30.85], [-106.32, 30.82], [-106.47, 30.47], [-107.0, 30.25], [-107.53, 30.47], [-107.68, 30.82], [-107.75, 30.85], [-108.0, 30.75], [-108.53, 30.97], [-108.68, 31.32], [-109.03, 31.47], [-109.25, 32.0]]]]}, "2015-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.25, 32.0], [-109.03, 32.53], [-108.5, 32.75], [-108.0, 32.54], [-107.5, 32.75], [-107.25, 32.65], [-107.0, 32.75], [-106.75, 32.65], [-106.68, 32.68], [-106.53, 33.03], [-106.0, 33.25], [-105.47, 33.03], [-105.32, 32.68], [-105.25, 32.65], [-105.18, 32.68], [-105.03, 33.03], [-104.5, 33.25], [-104.25, 33.15], [-104.0, 33.25], [-103.75, 33.15], [-103.5, 33.25], [-102.97, 33.03], [-102.82, 32.68], [-102.47, 32.53], [-102.32, 32.18], [-101.97, 32.03], [-101.75, 31.5], [-101.97, 30.97], [-102.5, 30.75], [-102.75, 30.85], [-103.0, 30.75], [-103.53, 30.97], [-103.68, 31.32], [-103.75, 31.35], [-103.82, 31.32], [-103.85, 31.25], [-103.75, 31.0], [-103.97, 30.47], [-104.32, 30.32], [-104.47, 29.97], [-105.0, 29.75], [-105.53, 29.97], [-105.68, 30.32], [-106.03, 30.47], [-106.18, 30.82], [-106.25, 30.85], [-106.32, 30.82], [-106.47, 30.47], [-107.0, 30.25], [-107.53, 30.47], [-107.68, 30.82], [-107.75, 30.85], [-108.0, 30.75], [-108.53, 30.97], [-108.68, 31.32], [-109.03, 31.47], [-109.25, 32.0]]]]}, "2015-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.03, 32.03], [-105.68, 32.18], [-105.53, 32.53], [-105.0, 32.75], [-104.5, 32.54], [-104.0, 32.75], [-103.47, 32.53], [-103.3, 32.12], [-103.0, 32.25], [-102.75, 32.15], [-102.5, 32.25], [-101.97, 32.03], [-101.75, 31.5], [-101.97, 30.97], [-102.5, 30.75], [-102.75, 30.85], [-103.0, 30.75], [-103.53, 30.97], [-103.7, 31.38], [-103.82, 31.32], [-103.85, 31.25], [-103.75, 31.0], [-103.97, 30.47], [-104.32, 30.32], [-104.47, 29.97], [-105.0, 29.75], [-105.53, 29.97], [-105.68, 30.32], [-106.03, 30.47], [-106.25, 31.0], [-106.15, 31.25], [-106.25, 31.5], [-106.03, 32.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.378148471028737}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.4173046772997}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.609377181150535, 12.713623940885384, 11.844472979648629, 12.980100645913865]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.663891604391608, 14.35104423103337, 14.019290118414233, 15.455045997937418]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.412783874385968, 6.653039674483383, 6.002413125982516, 6.917831941709076]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.378148471028737, 8.374123362971545, 7.199722057076144, 8.17039509253334]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.664238649352927, 1.691188190749854, 1.4921556117301729, 1.6043099236165546]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9815529601290771, 2.014432555399516, 1.738131116192378, 1.9107519023220503]}}