{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:45.352268", "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-Feb-27_to_2012-Mar-03_279.5_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": 2012020002678}, "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": "February 27 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 03 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 66239.85799436324}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-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", "North Atlantic Ocean"]}, "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": 279.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "279.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 276.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 280.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.75}, "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": {"2012-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.25, 27.5], [-83.03, 28.03], [-82.5, 28.25], [-81.97, 28.03], [-81.82, 27.68], [-81.47, 27.53], [-81.25, 27.0], [-81.47, 26.47], [-82.0, 26.25], [-82.53, 26.47], [-82.68, 26.82], [-83.03, 26.97], [-83.25, 27.5]]]]}, "2012-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.25, 27.5], [-83.03, 28.03], [-82.5, 28.25], [-82.25, 28.15], [-82.0, 28.25], [-81.47, 28.03], [-81.25, 27.5], [-81.35, 27.25], [-81.25, 27.0], [-81.47, 26.47], [-82.0, 26.25], [-82.53, 26.47], [-82.68, 26.82], [-83.03, 26.97], [-83.25, 27.5]]]]}, "2012-02-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.03, 28.03], [-82.5, 28.25], [-82.25, 28.15], [-82.0, 28.25], [-81.47, 28.03], [-81.25, 27.5], [-81.35, 27.25], [-81.25, 27.0], [-81.47, 26.47], [-82.0, 26.25], [-82.53, 26.47], [-82.68, 26.82], [-83.03, 26.97], [-83.25, 27.5], [-83.03, 28.03]]], [[[-80.5, 29.75], [-79.97, 29.53], [-79.75, 29.0], [-79.85, 28.75], [-79.75, 28.5], [-79.97, 27.97], [-80.5, 27.75], [-81.03, 27.97], [-81.25, 28.5], [-81.15, 28.75], [-81.25, 29.0], [-81.03, 29.53], [-80.5, 29.75]]]]}, "2012-03-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.54, 26.0], [-83.75, 26.5], [-83.53, 27.03], [-83.0, 27.25], [-82.75, 27.15], [-82.62, 27.2], [-82.75, 27.5], [-82.53, 28.03], [-82.0, 28.25], [-81.75, 28.15], [-81.68, 28.18], [-81.53, 28.53], [-81.18, 28.68], [-81.15, 28.75], [-81.25, 29.0], [-81.03, 29.53], [-80.5, 29.75], [-80.25, 29.65], [-80.0, 29.75], [-79.47, 29.53], [-79.25, 29.0], [-79.35, 28.75], [-79.25, 28.5], [-79.47, 27.97], [-79.82, 27.82], [-79.85, 27.75], [-79.75, 27.5], [-79.97, 26.97], [-80.5, 26.75], [-80.75, 26.85], [-81.0, 26.75], [-81.25, 26.85], [-81.5, 26.75], [-81.75, 26.85], [-81.87, 26.8], [-81.75, 26.5], [-81.85, 26.25], [-81.82, 26.18], [-81.75, 26.15], [-81.5, 26.25], [-80.97, 26.03], [-80.82, 25.68], [-80.47, 25.53], [-80.25, 25.0], [-80.47, 24.47], [-81.0, 24.25], [-81.25, 24.35], [-81.5, 24.25], [-81.75, 24.35], [-82.0, 24.25], [-82.25, 24.35], [-82.5, 24.25], [-82.75, 24.35], [-83.0, 24.25], [-83.53, 24.47], [-83.75, 25.0], [-83.65, 25.25], [-83.75, 25.5], [-83.54, 26.0]]]]}, "2012-03-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.54, 26.0], [-83.75, 26.5], [-83.53, 27.03], [-83.0, 27.25], [-82.75, 27.15], [-82.5, 27.25], [-82.07, 27.07], [-82.25, 27.5], [-82.03, 28.03], [-81.68, 28.18], [-81.53, 28.53], [-81.18, 28.68], [-81.15, 28.75], [-81.25, 29.0], [-81.03, 29.53], [-80.5, 29.75], [-80.25, 29.65], [-80.0, 29.75], [-79.47, 29.53], [-79.25, 29.0], [-79.35, 28.75], [-79.25, 28.5], [-79.47, 27.97], [-79.82, 27.82], [-79.85, 27.75], [-79.75, 27.5], [-79.97, 26.97], [-80.5, 26.75], [-80.75, 26.85], [-81.0, 26.75], [-81.25, 26.85], [-81.5, 26.75], [-81.93, 26.93], [-81.75, 26.5], [-81.85, 26.25], [-81.82, 26.18], [-81.75, 26.15], [-81.5, 26.25], [-80.97, 26.03], [-80.82, 25.68], [-80.47, 25.53], [-80.25, 25.0], [-80.47, 24.47], [-81.0, 24.25], [-81.25, 24.35], [-81.5, 24.25], [-81.75, 24.35], [-82.0, 24.25], [-82.25, 24.35], [-82.5, 24.25], [-82.75, 24.35], [-83.0, 24.25], [-83.53, 24.47], [-83.75, 25.0], [-83.65, 25.25], [-83.75, 25.5], [-83.54, 26.0]]]]}, "2012-03-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.54, 26.0], [-83.75, 26.5], [-83.53, 27.03], [-83.0, 27.25], [-82.75, 27.15], [-82.5, 27.25], [-82.07, 27.07], [-82.25, 27.5], [-82.03, 28.03], [-81.68, 28.18], [-81.53, 28.53], [-81.18, 28.68], [-81.15, 28.75], [-81.25, 29.0], [-81.03, 29.53], [-80.5, 29.75], [-80.25, 29.65], [-80.0, 29.75], [-79.47, 29.53], [-79.25, 29.0], [-79.35, 28.75], [-79.25, 28.5], [-79.47, 27.97], [-79.82, 27.82], [-79.85, 27.75], [-79.75, 27.5], [-79.97, 26.97], [-80.5, 26.75], [-80.75, 26.85], [-81.0, 26.75], [-81.25, 26.85], [-81.5, 26.75], [-81.93, 26.93], [-81.75, 26.5], [-81.85, 26.25], [-81.82, 26.18], [-81.75, 26.15], [-81.5, 26.25], [-80.97, 26.03], [-80.82, 25.68], [-80.47, 25.53], [-80.25, 25.0], [-80.47, 24.47], [-81.0, 24.25], [-81.25, 24.35], [-81.5, 24.25], [-81.75, 24.35], [-82.0, 24.25], [-82.25, 24.35], [-82.5, 24.25], [-82.75, 24.35], [-83.0, 24.25], [-83.53, 24.47], [-83.75, 25.0], [-83.65, 25.25], [-83.75, 25.5], [-83.54, 26.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.2164699110622905}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.961628596954719}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.905912273457773, 24.113292041371665, 23.2452403009803, 23.70676726612436, 23.74623468189577, 24.34347227087568]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.195335283416682, 24.791959533954184, 24.286070104875648, 25.34400125649978, 24.769818724731408, 25.661101299158645]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.521504437885511, 4.947631407593576, 4.244888427401941, 3.733803444676092, 3.695800844063843, 4.204508449089192]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.645094655529647, 5.12402018949706, 5.156645616489072, 6.2164699110622905, 5.493721752513466, 6.18761261722716]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.311270501146114, 1.3477232882183472, 1.2262383802489716, 1.2630462352723724, 1.2995533548514726, 1.547821550266011]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3537998049793682, 1.4264569714817055, 1.3229670907161402, 1.512217086999551, 1.3724679100217587, 1.6987177662334823]}}