{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:33.892619", "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": "2017-Jul-18_to_2017-Jul-22_257.5_38.0"}, "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": 2017070002428}, "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": "July 18 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 22 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 79892.76833177291}, "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": 38.0}, "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": 257.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "257.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 256.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 262.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.5, 38.75], [-102.25, 38.65], [-102.0, 38.75], [-101.47, 38.53], [-101.25, 38.0], [-101.35, 37.75], [-101.25, 37.5], [-101.47, 36.97], [-102.0, 36.75], [-102.25, 36.85], [-102.5, 36.75], [-102.75, 36.85], [-103.0, 36.75], [-103.53, 36.97], [-103.75, 37.5], [-103.53, 38.03], [-103.18, 38.18], [-103.03, 38.53], [-102.5, 38.75]]]]}, "2017-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.68, 38.68], [-102.53, 39.03], [-102.0, 39.25], [-101.75, 39.15], [-101.68, 39.18], [-101.65, 39.25], [-101.75, 39.5], [-101.53, 40.03], [-101.0, 40.25], [-100.75, 40.15], [-100.5, 40.25], [-100.25, 40.15], [-100.0, 40.25], [-99.75, 40.15], [-99.5, 40.25], [-98.97, 40.03], [-98.75, 39.5], [-98.85, 39.25], [-98.75, 39.0], [-98.85, 38.75], [-98.75, 38.5], [-98.97, 37.97], [-99.5, 37.75], [-99.75, 37.85], [-100.0, 37.75], [-100.3, 37.88], [-100.47, 37.47], [-100.82, 37.32], [-100.97, 36.97], [-101.5, 36.75], [-101.75, 36.85], [-102.0, 36.75], [-102.25, 36.85], [-102.5, 36.75], [-102.75, 36.85], [-103.0, 36.75], [-103.53, 36.97], [-103.75, 37.5], [-103.53, 38.03], [-103.18, 38.18], [-103.03, 38.53], [-102.68, 38.68]]]]}, "2017-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.68, 38.68], [-102.53, 39.03], [-102.0, 39.25], [-101.75, 39.15], [-101.68, 39.18], [-101.65, 39.25], [-101.75, 39.5], [-101.53, 40.03], [-101.0, 40.25], [-100.75, 40.15], [-100.5, 40.25], [-100.25, 40.15], [-100.0, 40.25], [-99.75, 40.15], [-99.5, 40.25], [-98.97, 40.03], [-98.8, 39.62], [-98.5, 39.75], [-98.25, 39.65], [-98.0, 39.75], [-97.75, 39.65], [-97.5, 39.75], [-96.97, 39.53], [-96.75, 39.0], [-96.85, 38.75], [-96.75, 38.5], [-96.85, 38.25], [-96.75, 38.0], [-96.97, 37.47], [-97.5, 37.25], [-97.75, 37.35], [-98.0, 37.25], [-98.25, 37.35], [-98.5, 37.25], [-99.0, 37.46], [-99.5, 37.25], [-99.75, 37.35], [-99.82, 37.32], [-99.97, 36.97], [-100.5, 36.75], [-101.0, 36.96], [-101.5, 36.75], [-101.75, 36.85], [-102.0, 36.75], [-102.25, 36.85], [-102.5, 36.75], [-102.75, 36.85], [-103.0, 36.75], [-103.53, 36.97], [-103.75, 37.5], [-103.53, 38.03], [-103.18, 38.18], [-103.03, 38.53], [-102.68, 38.68]]]]}, "2017-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.68, 38.68], [-102.53, 39.03], [-102.0, 39.25], [-101.75, 39.15], [-101.68, 39.18], [-101.65, 39.25], [-101.75, 39.5], [-101.53, 40.03], [-101.0, 40.25], [-100.75, 40.15], [-100.5, 40.25], [-100.25, 40.15], [-100.0, 40.25], [-99.75, 40.15], [-99.5, 40.25], [-98.97, 40.03], [-98.8, 39.62], [-98.5, 39.75], [-98.25, 39.65], [-98.0, 39.75], [-97.75, 39.65], [-97.5, 39.75], [-96.97, 39.53], [-96.75, 39.0], [-96.85, 38.75], [-96.75, 38.5], [-96.85, 38.25], [-96.75, 38.0], [-96.97, 37.47], [-97.5, 37.25], [-97.75, 37.35], [-98.0, 37.25], [-98.25, 37.35], [-98.5, 37.25], [-99.0, 37.46], [-99.5, 37.25], [-99.75, 37.35], [-99.82, 37.32], [-99.97, 36.97], [-100.5, 36.75], [-101.0, 36.96], [-101.5, 36.75], [-101.75, 36.85], [-102.0, 36.75], [-102.25, 36.85], [-102.5, 36.75], [-102.75, 36.85], [-103.0, 36.75], [-103.53, 36.97], [-103.75, 37.5], [-103.53, 38.03], [-103.18, 38.18], [-103.03, 38.53], [-102.68, 38.68]]]]}, "2017-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.18, 38.68], [-100.03, 39.03], [-99.5, 39.25], [-99.25, 39.15], [-99.18, 39.18], [-99.03, 39.53], [-98.5, 39.75], [-98.25, 39.65], [-98.0, 39.75], [-97.75, 39.65], [-97.5, 39.75], [-96.97, 39.53], [-96.75, 39.0], [-96.85, 38.75], [-96.75, 38.5], [-96.85, 38.25], [-96.75, 38.0], [-96.97, 37.47], [-97.5, 37.25], [-97.75, 37.35], [-98.0, 37.25], [-98.25, 37.35], [-98.5, 37.25], [-99.0, 37.46], [-99.5, 37.25], [-99.75, 37.35], [-99.82, 37.32], [-99.97, 36.97], [-100.5, 36.75], [-101.03, 36.97], [-101.25, 37.5], [-101.03, 38.03], [-100.68, 38.18], [-100.53, 38.53], [-100.18, 38.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.186101301696738}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.683265876745786}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.300088383973844, 31.106288733759982, 31.540751952310586, 32.42319649385968, 32.74177295275564]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.71432086916508, 31.96013032513514, 32.79364178264677, 33.89133684137374, 33.59022977599625]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.9922351862325742, 4.355816497710082, 4.333369415645882, 5.264114631480547, 4.89174008615852]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.133961141443592, 4.822375791444244, 4.8160392877824165, 6.186101301696738, 5.456814467681681]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3766194857823564, 1.397397752018377, 1.3786491183021239, 1.6736014045476386, 1.516074845605478]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4219163802415096, 1.6193244971471366, 1.6000998382118723, 1.8450692935389175, 1.711989122334029]}}