{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:54.819449", "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-Mar-14_to_2013-Mar-16_255.5_35.0"}, "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": 2013030001871}, "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": "March 14 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 16 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": 52589.65418073299}, "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", "W.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": 35.0}, "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": 255.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "255.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 252.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 256.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.75, 37.5], [-107.53, 38.03], [-107.0, 38.25], [-106.47, 38.03], [-106.32, 37.68], [-106.25, 37.65], [-106.0, 37.75], [-105.75, 37.65], [-105.5, 37.75], [-104.97, 37.53], [-104.75, 37.0], [-104.85, 36.75], [-104.82, 36.68], [-104.75, 36.65], [-104.5, 36.75], [-104.25, 36.65], [-104.0, 36.75], [-103.47, 36.53], [-103.25, 36.0], [-103.47, 35.47], [-103.82, 35.32], [-103.85, 35.25], [-103.75, 35.0], [-103.97, 34.47], [-104.32, 34.32], [-104.47, 33.97], [-105.0, 33.75], [-105.53, 33.97], [-105.68, 34.32], [-105.75, 34.35], [-106.0, 34.25], [-106.53, 34.47], [-106.68, 34.82], [-107.03, 34.97], [-107.25, 35.5], [-107.15, 35.75], [-107.25, 36.0], [-107.04, 36.5], [-107.18, 36.82], [-107.53, 36.97], [-107.75, 37.5]]]]}, "2013-03-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.75, 37.5], [-107.53, 38.03], [-107.0, 38.25], [-106.47, 38.03], [-106.32, 37.68], [-106.25, 37.65], [-106.0, 37.75], [-105.75, 37.65], [-105.5, 37.75], [-104.97, 37.53], [-104.75, 37.0], [-104.85, 36.75], [-104.82, 36.68], [-104.75, 36.65], [-104.5, 36.75], [-104.25, 36.65], [-104.0, 36.75], [-103.47, 36.53], [-103.25, 36.0], [-103.47, 35.47], [-103.82, 35.32], [-103.85, 35.25], [-103.75, 35.0], [-103.97, 34.47], [-104.32, 34.32], [-104.47, 33.97], [-105.0, 33.75], [-105.53, 33.97], [-105.68, 34.32], [-105.75, 34.35], [-106.0, 34.25], [-106.53, 34.47], [-106.68, 34.82], [-107.03, 34.97], [-107.25, 35.5], [-107.15, 35.75], [-107.25, 36.0], [-107.04, 36.5], [-107.18, 36.82], [-107.53, 36.97], [-107.75, 37.5]]]]}, "2013-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.75, 37.5], [-107.53, 38.03], [-107.0, 38.25], [-106.47, 38.03], [-106.32, 37.68], [-106.25, 37.65], [-106.0, 37.75], [-105.75, 37.65], [-105.5, 37.75], [-104.97, 37.53], [-104.75, 37.0], [-104.85, 36.75], [-104.82, 36.68], [-104.75, 36.65], [-104.5, 36.75], [-104.25, 36.65], [-104.0, 36.75], [-103.47, 36.53], [-103.25, 36.0], [-103.47, 35.47], [-103.82, 35.32], [-103.85, 35.25], [-103.75, 35.0], [-103.97, 34.47], [-104.32, 34.32], [-104.47, 33.97], [-105.0, 33.75], [-105.53, 33.97], [-105.68, 34.32], [-105.75, 34.35], [-106.0, 34.25], [-106.53, 34.47], [-106.68, 34.82], [-107.03, 34.97], [-107.25, 35.5], [-107.15, 35.75], [-107.25, 36.0], [-107.04, 36.5], [-107.18, 36.82], [-107.53, 36.97], [-107.75, 37.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.298715006227383}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.7477692519105235}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.808908507559465, 11.047380942378823, 11.051930401634195]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.821689456240449, 17.515063966381092, 18.737037759804764]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.129558245836514, 6.134234467978691, 5.979515041916365]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.041928518601196, 7.336553132754943, 8.298715006227383]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3262780199408402, 1.5761696852237095, 1.507864303846596]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5075215101883455, 1.7948372828184134, 1.8774500000000884]}}