{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:01.445025", "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": "2024-Jan-30_to_2024-Feb-02_254.0_29.5"}, "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": 2024010002036}, "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 30 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 02 2024"}, "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": 55842.80179990502}, "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": 29.5}, "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": 254.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "254.0\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": 254.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.47, 31.53], [-105.25, 31.0], [-105.46, 30.5], [-105.25, 30.0], [-105.35, 29.75], [-105.25, 29.5], [-105.47, 28.97], [-106.0, 28.75], [-106.3, 28.88], [-106.47, 28.47], [-107.0, 28.25], [-107.53, 28.47], [-107.75, 29.0], [-107.53, 29.53], [-107.0, 29.75], [-106.7, 29.63], [-106.65, 29.75], [-106.75, 30.0], [-106.54, 30.5], [-106.75, 31.0], [-106.53, 31.53], [-106.0, 31.75], [-105.47, 31.53]]], [[[-109.53, 32.53], [-109.0, 32.75], [-108.47, 32.53], [-108.32, 32.18], [-107.97, 32.03], [-107.82, 31.68], [-107.75, 31.65], [-107.5, 31.75], [-106.97, 31.53], [-106.75, 31.0], [-106.85, 30.75], [-106.75, 30.5], [-106.97, 29.97], [-107.5, 29.75], [-107.75, 29.85], [-108.0, 29.75], [-108.53, 29.97], [-108.68, 30.32], [-109.03, 30.47], [-109.25, 31.0], [-109.15, 31.25], [-109.18, 31.32], [-109.53, 31.47], [-109.75, 32.0], [-109.53, 32.53]]]]}, "2024-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.75, 32.0], [-109.53, 32.53], [-109.0, 32.75], [-108.47, 32.53], [-108.32, 32.18], [-108.2, 32.13], [-108.03, 32.53], [-107.5, 32.75], [-106.97, 32.53], [-106.82, 32.18], [-106.47, 32.03], [-106.3, 31.63], [-106.0, 31.75], [-105.47, 31.53], [-105.25, 31.0], [-105.46, 30.5], [-105.25, 30.0], [-105.35, 29.75], [-105.25, 29.5], [-105.47, 28.97], [-106.0, 28.75], [-106.25, 28.85], [-106.32, 28.82], [-106.47, 28.47], [-107.0, 28.25], [-107.53, 28.47], [-107.75, 29.0], [-107.62, 29.3], [-108.03, 29.47], [-108.18, 29.82], [-108.53, 29.97], [-108.68, 30.32], [-109.03, 30.47], [-109.25, 31.0], [-109.15, 31.25], [-109.18, 31.32], [-109.53, 31.47], [-109.75, 32.0]]]]}, "2024-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-109.75, 32.0], [-109.53, 32.53], [-109.0, 32.75], [-108.47, 32.53], [-108.32, 32.18], [-108.2, 32.13], [-108.03, 32.53], [-107.5, 32.75], [-106.97, 32.53], [-106.82, 32.18], [-106.47, 32.03], [-106.3, 31.63], [-106.0, 31.75], [-105.47, 31.53], [-105.25, 31.0], [-105.46, 30.5], [-105.25, 30.0], [-105.35, 29.75], [-105.25, 29.5], [-105.47, 28.97], [-106.0, 28.75], [-106.25, 28.85], [-106.32, 28.82], [-106.47, 28.47], [-107.0, 28.25], [-107.53, 28.47], [-107.75, 29.0], [-107.62, 29.3], [-108.03, 29.47], [-108.18, 29.82], [-108.53, 29.97], [-108.68, 30.32], [-109.03, 30.47], [-109.25, 31.0], [-109.15, 31.25], [-109.18, 31.32], [-109.53, 31.47], [-109.75, 32.0]]]]}, "2024-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.03, 32.53], [-107.5, 32.75], [-106.97, 32.53], [-106.82, 32.18], [-106.47, 32.03], [-106.25, 31.5], [-106.35, 31.25], [-106.32, 31.18], [-105.97, 31.03], [-105.82, 30.68], [-105.47, 30.53], [-105.25, 30.0], [-105.35, 29.75], [-105.25, 29.5], [-105.47, 28.97], [-106.0, 28.75], [-106.25, 28.85], [-106.5, 28.75], [-107.03, 28.97], [-107.18, 29.32], [-107.25, 29.35], [-107.5, 29.25], [-108.03, 29.47], [-108.25, 30.0], [-108.03, 30.53], [-107.68, 30.68], [-107.65, 30.75], [-107.68, 30.82], [-108.03, 30.97], [-108.25, 31.5], [-108.15, 31.75], [-108.25, 32.0], [-108.03, 32.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.104653785186031}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.4061496009101955}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.4628503627128, 14.468742804758051, 14.352154466726176, 14.871277317592785]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.314968861452769, 16.626084104865697, 16.487106431350412, 17.079210832198896]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.938429313083635, 5.67662173310096, 5.376762308484439, 5.412994728495775]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.98468274560247, 6.789477302293619, 7.104653785186031, 6.486680251968835]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.428542186015662, 1.6064247728844423, 1.543209144023903, 1.53124246928357]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7686495400323996, 1.8389063197110864, 1.926316506535411, 1.851635331271712]}}