{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:04.438781", "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-06_to_2012-Dec-09_256.0_32.0"}, "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": 2012120001644}, "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 06 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": 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": 81311.65504011072}, "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": ["C.North-America", "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": 32.0}, "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": 256.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "256.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 251.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 256.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 29.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.03, 33.53], [-106.5, 33.75], [-106.0, 33.54], [-105.68, 33.68], [-105.53, 34.03], [-105.18, 34.18], [-105.03, 34.53], [-104.5, 34.75], [-103.97, 34.53], [-103.75, 34.0], [-103.97, 33.47], [-104.32, 33.32], [-104.37, 33.2], [-103.97, 33.03], [-103.82, 32.68], [-103.47, 32.53], [-103.32, 32.18], [-102.97, 32.03], [-102.75, 31.5], [-102.97, 30.97], [-103.5, 30.75], [-103.75, 30.85], [-104.0, 30.75], [-104.5, 30.96], [-104.82, 30.82], [-104.97, 30.47], [-105.5, 30.25], [-106.03, 30.47], [-106.18, 30.82], [-106.53, 30.97], [-106.75, 31.5], [-106.65, 31.75], [-106.68, 31.82], [-107.03, 31.97], [-107.25, 32.5], [-107.15, 32.75], [-107.25, 33.0], [-107.03, 33.53]]]]}, "2012-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.53, 32.53], [-108.18, 32.68], [-108.03, 33.03], [-107.5, 33.25], [-107.25, 33.15], [-107.18, 33.18], [-107.03, 33.53], [-106.5, 33.75], [-106.0, 33.54], [-105.68, 33.68], [-105.53, 34.03], [-105.18, 34.18], [-105.03, 34.53], [-104.5, 34.75], [-103.97, 34.53], [-103.75, 34.0], [-103.97, 33.47], [-104.32, 33.32], [-104.37, 33.2], [-103.97, 33.03], [-103.82, 32.68], [-103.47, 32.53], [-103.32, 32.18], [-102.97, 32.03], [-102.75, 31.5], [-102.97, 30.97], [-103.5, 30.75], [-103.75, 30.85], [-104.0, 30.75], [-104.25, 30.85], [-104.37, 30.8], [-104.25, 30.5], [-104.35, 30.25], [-104.25, 30.0], [-104.47, 29.47], [-105.0, 29.25], [-105.53, 29.47], [-105.75, 30.0], [-105.65, 30.25], [-105.68, 30.32], [-106.03, 30.47], [-106.18, 30.82], [-106.3, 30.88], [-106.47, 30.47], [-107.0, 30.25], [-107.25, 30.35], [-107.5, 30.25], [-108.03, 30.47], [-108.18, 30.82], [-108.53, 30.97], [-108.75, 31.5], [-108.65, 31.75], [-108.75, 32.0], [-108.53, 32.53]]]]}, "2012-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.53, 32.53], [-108.18, 32.68], [-108.03, 33.03], [-107.5, 33.25], [-107.25, 33.15], [-107.18, 33.18], [-107.03, 33.53], [-106.5, 33.75], [-106.0, 33.54], [-105.68, 33.68], [-105.53, 34.03], [-105.18, 34.18], [-105.03, 34.53], [-104.5, 34.75], [-103.97, 34.53], [-103.75, 34.0], [-103.97, 33.47], [-104.32, 33.32], [-104.37, 33.2], [-103.97, 33.03], [-103.82, 32.68], [-103.47, 32.53], [-103.32, 32.18], [-102.97, 32.03], [-102.75, 31.5], [-102.97, 30.97], [-103.5, 30.75], [-103.75, 30.85], [-104.0, 30.75], [-104.25, 30.85], [-104.37, 30.8], [-104.25, 30.5], [-104.35, 30.25], [-104.25, 30.0], [-104.47, 29.47], [-105.0, 29.25], [-105.53, 29.47], [-105.75, 30.0], [-105.65, 30.25], [-105.68, 30.32], [-106.03, 30.47], [-106.18, 30.82], [-106.3, 30.88], [-106.47, 30.47], [-107.0, 30.25], [-107.25, 30.35], [-107.5, 30.25], [-108.03, 30.47], [-108.18, 30.82], [-108.53, 30.97], [-108.75, 31.5], [-108.65, 31.75], [-108.75, 32.0], [-108.53, 32.53]]]]}, "2012-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.53, 32.53], [-108.18, 32.68], [-108.03, 33.03], [-107.5, 33.25], [-107.25, 33.15], [-107.0, 33.25], [-106.47, 33.03], [-106.32, 32.68], [-106.0, 32.54], [-105.68, 32.68], [-105.53, 33.03], [-105.0, 33.25], [-104.75, 33.15], [-104.5, 33.25], [-103.97, 33.03], [-103.82, 32.68], [-103.47, 32.53], [-103.32, 32.18], [-102.97, 32.03], [-102.75, 31.5], [-102.97, 30.97], [-103.5, 30.75], [-103.75, 30.85], [-104.0, 30.75], [-104.25, 30.85], [-104.37, 30.8], [-104.25, 30.5], [-104.35, 30.25], [-104.25, 30.0], [-104.47, 29.47], [-105.0, 29.25], [-105.53, 29.47], [-105.75, 30.0], [-105.65, 30.25], [-105.75, 30.5], [-105.62, 30.8], [-106.03, 30.97], [-106.2, 31.38], [-106.37, 31.3], [-106.25, 31.0], [-106.47, 30.47], [-107.0, 30.25], [-107.25, 30.35], [-107.5, 30.25], [-108.03, 30.47], [-108.18, 30.82], [-108.53, 30.97], [-108.75, 31.5], [-108.65, 31.75], [-108.75, 32.0], [-108.53, 32.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.086713728235736}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.230476382066638}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.30700130613252, 14.253527410623178, 13.06093722756441, 13.598333655587226]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.392412207538598, 18.099764433270877, 16.554221475110978, 16.148643060870256]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.537541773402957, 6.948743106233995, 5.7458251626300125, 5.664013095731633]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.69196908927455, 9.086713728235736, 7.658182242557984, 6.991326704733922]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4677846779598884, 1.7001849339143373, 1.416303155321882, 1.419551206682228]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.782933237033225, 2.087422943943315, 1.6899928344831314, 1.6840612415318361]}}