{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:04.565984", "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": "2012-Dec-07_to_2012-Dec-09_259.5_28.5"}, "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": 2012120001691}, "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 07 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 09 2012"}, "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": "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": 76662.75255514914}, "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": 28.5}, "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": 259.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "259.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 257.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 260.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.03, 27.53], [-102.68, 27.68], [-102.65, 27.75], [-102.75, 28.0], [-102.65, 28.25], [-102.75, 28.5], [-102.53, 29.03], [-102.0, 29.25], [-101.75, 29.15], [-101.68, 29.18], [-101.53, 29.53], [-101.0, 29.75], [-100.75, 29.65], [-100.5, 29.75], [-100.25, 29.65], [-100.0, 29.75], [-99.47, 29.53], [-99.25, 29.0], [-99.35, 28.75], [-99.25, 28.5], [-99.35, 28.25], [-99.25, 28.0], [-99.35, 27.75], [-99.25, 27.5], [-99.47, 26.97], [-99.82, 26.82], [-99.97, 26.47], [-100.32, 26.32], [-100.35, 26.25], [-100.25, 26.0], [-100.47, 25.47], [-101.0, 25.25], [-101.53, 25.47], [-101.68, 25.82], [-101.75, 25.85], [-102.0, 25.75], [-102.25, 25.85], [-102.5, 25.75], [-103.03, 25.97], [-103.25, 26.5], [-103.15, 26.75], [-103.25, 27.0], [-103.03, 27.53]]]]}, "2012-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.03, 27.53], [-102.68, 27.68], [-102.65, 27.75], [-102.75, 28.0], [-102.65, 28.25], [-102.75, 28.5], [-102.53, 29.03], [-102.0, 29.25], [-101.75, 29.15], [-101.68, 29.18], [-101.53, 29.53], [-101.0, 29.75], [-100.75, 29.65], [-100.5, 29.75], [-100.25, 29.65], [-100.0, 29.75], [-99.47, 29.53], [-99.25, 29.0], [-99.35, 28.75], [-99.25, 28.5], [-99.35, 28.25], [-99.25, 28.0], [-99.35, 27.75], [-99.25, 27.5], [-99.47, 26.97], [-99.82, 26.82], [-99.97, 26.47], [-100.32, 26.32], [-100.35, 26.25], [-100.25, 26.0], [-100.47, 25.47], [-101.0, 25.25], [-101.53, 25.47], [-101.68, 25.82], [-101.75, 25.85], [-102.0, 25.75], [-102.25, 25.85], [-102.5, 25.75], [-103.03, 25.97], [-103.25, 26.5], [-103.15, 26.75], [-103.25, 27.0], [-103.03, 27.53]]]]}, "2012-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.03, 27.53], [-102.68, 27.68], [-102.65, 27.75], [-102.75, 28.0], [-102.65, 28.25], [-102.75, 28.5], [-102.53, 29.03], [-102.0, 29.25], [-101.75, 29.15], [-101.68, 29.18], [-101.53, 29.53], [-101.0, 29.75], [-100.75, 29.65], [-100.5, 29.75], [-100.25, 29.65], [-100.0, 29.75], [-99.47, 29.53], [-99.25, 29.0], [-99.35, 28.75], [-99.25, 28.5], [-99.35, 28.25], [-99.25, 28.0], [-99.35, 27.75], [-99.25, 27.5], [-99.47, 26.97], [-99.82, 26.82], [-99.97, 26.47], [-100.32, 26.32], [-100.35, 26.25], [-100.25, 26.0], [-100.47, 25.47], [-101.0, 25.25], [-101.53, 25.47], [-101.68, 25.82], [-101.75, 25.85], [-102.0, 25.75], [-102.25, 25.85], [-102.5, 25.75], [-103.03, 25.97], [-103.25, 26.5], [-103.15, 26.75], [-103.25, 27.0], [-103.03, 27.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.177768918082506}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.912183379907463}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.44795687287865, 19.869135442402865, 20.285197103633493]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.133264815061295, 22.62846725711296, 22.89175093662965]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.134476012245868, 6.6262908901490345, 6.975783237327486]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.177768918082506, 7.8822724253763, 7.994454646954978]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5637860057093753, 1.458775904998055, 1.5804169507608798]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8058275005143392, 1.618404529991958, 1.785820186472448]}}