{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:28.621920", "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": "2013-May-25_to_2013-May-27_257.0_39.0"}, "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": 2013050002653}, "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": "May 25 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 27 2013"}, "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": 122555.11032726921}, "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": ["C.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": []}, "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": 39.0}, "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": 257.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "257.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 254.75}, "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": 36.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.53, 39.03], [-105.18, 39.18], [-105.15, 39.25], [-105.18, 39.32], [-105.53, 39.47], [-105.75, 40.0], [-105.65, 40.25], [-105.75, 40.5], [-105.53, 41.03], [-105.18, 41.18], [-105.03, 41.53], [-104.68, 41.68], [-104.53, 42.03], [-104.0, 42.25], [-103.47, 42.03], [-103.32, 41.68], [-103.25, 41.65], [-103.0, 41.75], [-102.47, 41.53], [-102.25, 41.0], [-102.46, 40.5], [-102.25, 40.0], [-102.35, 39.75], [-102.32, 39.68], [-101.97, 39.53], [-101.82, 39.18], [-101.75, 39.15], [-101.68, 39.18], [-101.53, 39.53], [-101.0, 39.75], [-100.75, 39.65], [-100.68, 39.68], [-100.53, 40.03], [-100.0, 40.25], [-99.47, 40.03], [-99.25, 39.5], [-99.47, 38.97], [-99.82, 38.82], [-99.97, 38.47], [-100.32, 38.32], [-100.47, 37.97], [-100.82, 37.82], [-100.97, 37.47], [-101.32, 37.32], [-101.47, 36.97], [-101.82, 36.82], [-101.97, 36.47], [-102.5, 36.25], [-102.75, 36.35], [-103.0, 36.25], [-103.25, 36.35], [-103.5, 36.25], [-104.03, 36.47], [-104.18, 36.82], [-104.53, 36.97], [-104.68, 37.32], [-104.75, 37.35], [-105.0, 37.25], [-105.53, 37.47], [-105.75, 38.0], [-105.65, 38.25], [-105.75, 38.5], [-105.53, 39.03]]]]}, "2013-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.53, 39.03], [-105.18, 39.18], [-105.15, 39.25], [-105.18, 39.32], [-105.53, 39.47], [-105.75, 40.0], [-105.65, 40.25], [-105.75, 40.5], [-105.53, 41.03], [-105.18, 41.18], [-105.03, 41.53], [-104.68, 41.68], [-104.53, 42.03], [-104.0, 42.25], [-103.47, 42.03], [-103.32, 41.68], [-103.25, 41.65], [-103.0, 41.75], [-102.47, 41.53], [-102.25, 41.0], [-102.46, 40.5], [-102.25, 40.0], [-102.35, 39.75], [-102.32, 39.68], [-101.97, 39.53], [-101.82, 39.18], [-101.75, 39.15], [-101.68, 39.18], [-101.53, 39.53], [-101.0, 39.75], [-100.75, 39.65], [-100.68, 39.68], [-100.53, 40.03], [-100.0, 40.25], [-99.47, 40.03], [-99.25, 39.5], [-99.47, 38.97], [-99.82, 38.82], [-99.97, 38.47], [-100.32, 38.32], [-100.47, 37.97], [-100.82, 37.82], [-100.97, 37.47], [-101.32, 37.32], [-101.47, 36.97], [-101.82, 36.82], [-101.97, 36.47], [-102.5, 36.25], [-102.75, 36.35], [-103.0, 36.25], [-103.25, 36.35], [-103.5, 36.25], [-104.03, 36.47], [-104.18, 36.82], [-104.53, 36.97], [-104.68, 37.32], [-104.75, 37.35], [-105.0, 37.25], [-105.53, 37.47], [-105.75, 38.0], [-105.65, 38.25], [-105.75, 38.5], [-105.53, 39.03]]]]}, "2013-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.53, 39.03], [-105.18, 39.18], [-105.15, 39.25], [-105.18, 39.32], [-105.53, 39.47], [-105.75, 40.0], [-105.65, 40.25], [-105.75, 40.5], [-105.53, 41.03], [-105.18, 41.18], [-105.03, 41.53], [-104.68, 41.68], [-104.53, 42.03], [-104.0, 42.25], [-103.47, 42.03], [-103.32, 41.68], [-103.25, 41.65], [-103.0, 41.75], [-102.47, 41.53], [-102.25, 41.0], [-102.46, 40.5], [-102.25, 40.0], [-102.35, 39.75], [-102.32, 39.68], [-101.97, 39.53], [-101.82, 39.18], [-101.75, 39.15], [-101.68, 39.18], [-101.53, 39.53], [-101.0, 39.75], [-100.75, 39.65], [-100.68, 39.68], [-100.53, 40.03], [-100.0, 40.25], [-99.47, 40.03], [-99.25, 39.5], [-99.47, 38.97], [-99.82, 38.82], [-99.97, 38.47], [-100.32, 38.32], [-100.47, 37.97], [-100.82, 37.82], [-100.97, 37.47], [-101.32, 37.32], [-101.47, 36.97], [-101.82, 36.82], [-101.97, 36.47], [-102.5, 36.25], [-102.75, 36.35], [-103.0, 36.25], [-103.25, 36.35], [-103.5, 36.25], [-104.03, 36.47], [-104.18, 36.82], [-104.53, 36.97], [-104.68, 37.32], [-104.75, 37.35], [-105.0, 37.25], [-105.53, 37.47], [-105.75, 38.0], [-105.65, 38.25], [-105.75, 38.5], [-105.53, 39.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.307194169275192}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.979221573725721}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.417384758395883, 24.459261118570396, 24.07088234353563]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.890783970004748, 28.083561982659774, 27.87169059396507]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.467624424649282, 7.519811261423572, 6.95022903510431]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.50636781689974, 9.307194169275192, 8.753902229066512]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6127618271585726, 1.8090626831768566, 1.6413388621072196]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0407064313535885, 2.165057443447541, 1.9964918231085391]}}