{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:07.463483", "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": "2018-Sep-16_to_2018-Sep-19_268.0_17.5"}, "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": 2018090002214}, "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": "September 16 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 19 2018"}, "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": 84946.64581421501}, "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": ["Guatemala", "Mexico"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.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": ["Gulf of Mexico"]}, "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": 17.5}, "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": 268.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "268.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 265.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 270.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.15, 20.25], [-95.25, 20.5], [-95.03, 21.03], [-94.5, 21.25], [-94.25, 21.15], [-94.0, 21.25], [-93.47, 21.03], [-93.25, 20.5], [-93.43, 20.07], [-93.0, 20.25], [-92.75, 20.15], [-92.5, 20.25], [-92.25, 20.15], [-92.0, 20.25], [-91.47, 20.03], [-91.32, 19.68], [-90.97, 19.53], [-90.75, 19.0], [-90.85, 18.75], [-90.82, 18.68], [-90.75, 18.65], [-90.5, 18.75], [-89.97, 18.53], [-89.75, 18.0], [-89.85, 17.75], [-89.82, 17.68], [-89.47, 17.53], [-89.25, 17.0], [-89.47, 16.47], [-90.0, 16.25], [-90.53, 16.47], [-90.68, 16.82], [-91.0, 16.96], [-91.5, 16.75], [-91.75, 16.85], [-92.0, 16.75], [-92.25, 16.85], [-92.5, 16.75], [-92.75, 16.85], [-93.0, 16.75], [-93.53, 16.97], [-93.75, 17.5], [-93.65, 17.75], [-93.75, 18.0], [-93.65, 18.25], [-93.68, 18.32], [-93.75, 18.35], [-94.0, 18.25], [-94.53, 18.47], [-94.68, 18.82], [-95.03, 18.97], [-95.25, 19.5], [-95.15, 19.75], [-95.25, 20.0], [-95.15, 20.25]], [[-93.68, 19.68], [-93.57, 19.93], [-93.82, 19.82], [-93.85, 19.75], [-93.82, 19.68], [-93.75, 19.65], [-93.68, 19.68]]]]}, "2018-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.15, 20.25], [-95.25, 20.5], [-95.03, 21.03], [-94.5, 21.25], [-94.25, 21.15], [-94.0, 21.25], [-93.47, 21.03], [-93.25, 20.5], [-93.43, 20.07], [-93.0, 20.25], [-92.75, 20.15], [-92.5, 20.25], [-92.25, 20.15], [-92.0, 20.25], [-91.47, 20.03], [-91.32, 19.68], [-90.97, 19.53], [-90.75, 19.0], [-90.85, 18.75], [-90.82, 18.68], [-90.75, 18.65], [-90.5, 18.75], [-89.97, 18.53], [-89.75, 18.0], [-89.85, 17.75], [-89.82, 17.68], [-89.47, 17.53], [-89.25, 17.0], [-89.47, 16.47], [-90.0, 16.25], [-90.53, 16.47], [-90.68, 16.82], [-91.0, 16.96], [-91.5, 16.75], [-91.75, 16.85], [-92.0, 16.75], [-92.25, 16.85], [-92.5, 16.75], [-92.75, 16.85], [-93.0, 16.75], [-93.53, 16.97], [-93.75, 17.5], [-93.65, 17.75], [-93.75, 18.0], [-93.65, 18.25], [-93.68, 18.32], [-93.75, 18.35], [-94.0, 18.25], [-94.53, 18.47], [-94.68, 18.82], [-95.03, 18.97], [-95.25, 19.5], [-95.15, 19.75], [-95.25, 20.0], [-95.15, 20.25]], [[-93.68, 19.68], [-93.57, 19.93], [-93.82, 19.82], [-93.85, 19.75], [-93.82, 19.68], [-93.75, 19.65], [-93.68, 19.68]]]]}, "2018-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.15, 20.25], [-95.25, 20.5], [-95.03, 21.03], [-94.5, 21.25], [-94.25, 21.15], [-94.0, 21.25], [-93.47, 21.03], [-93.25, 20.5], [-93.43, 20.07], [-93.0, 20.25], [-92.75, 20.15], [-92.5, 20.25], [-92.25, 20.15], [-92.0, 20.25], [-91.47, 20.03], [-91.32, 19.68], [-90.97, 19.53], [-90.75, 19.0], [-90.85, 18.75], [-90.82, 18.68], [-90.75, 18.65], [-90.5, 18.75], [-89.97, 18.53], [-89.75, 18.0], [-89.85, 17.75], [-89.82, 17.68], [-89.47, 17.53], [-89.25, 17.0], [-89.47, 16.47], [-90.0, 16.25], [-90.53, 16.47], [-90.68, 16.82], [-91.0, 16.96], [-91.5, 16.75], [-91.75, 16.85], [-92.0, 16.75], [-92.25, 16.85], [-92.5, 16.75], [-92.75, 16.85], [-93.0, 16.75], [-93.53, 16.97], [-93.75, 17.5], [-93.65, 17.75], [-93.75, 18.0], [-93.65, 18.25], [-93.68, 18.32], [-93.75, 18.35], [-94.0, 18.25], [-94.53, 18.47], [-94.68, 18.82], [-95.03, 18.97], [-95.25, 19.5], [-95.15, 19.75], [-95.25, 20.0], [-95.15, 20.25]], [[-93.68, 19.68], [-93.57, 19.93], [-93.82, 19.82], [-93.85, 19.75], [-93.82, 19.68], [-93.75, 19.65], [-93.68, 19.68]]]]}, "2018-09-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.53, 18.97], [-92.75, 19.5], [-92.53, 20.03], [-92.0, 20.25], [-91.47, 20.03], [-91.25, 19.5], [-91.47, 18.97], [-92.0, 18.75], [-92.53, 18.97]]], [[[-94.5, 20.75], [-93.97, 20.53], [-93.75, 20.0], [-93.85, 19.75], [-93.75, 19.5], [-93.97, 18.97], [-94.5, 18.75], [-95.03, 18.97], [-95.25, 19.5], [-95.15, 19.75], [-95.25, 20.0], [-95.03, 20.53], [-94.5, 20.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.038154979495687}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6273770304441295}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.018341305849617, 29.25792384916116, 29.07111144926745, 28.8129067248571]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.011964289624757, 30.421069137118195, 30.020473800121408, 28.972669407640808]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.540093715106458, 1.7741788715685771, 1.6115312862072548, 1.205206808795083]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.4048351400966226, 3.038154979495687, 2.3950906896324113, 1.4069035583335108]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.649992539384883, 1.8599492728511478, 1.6704925233114207, 1.4558505743673986]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2206323300633515, 2.7807247362171417, 2.1344052926720667, 1.611867642731548]}}