{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:34.463633", "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-20_to_2017-Jul-22_266.0_40.0"}, "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": 2017070002548}, "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 20 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": 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": 65775.72969955954}, "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": 40.0}, "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": 266.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "266.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 262.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 269.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.25}, "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": {"2017-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.5, 41.25], [-96.25, 41.15], [-96.18, 41.18], [-96.15, 41.25], [-96.25, 41.5], [-96.03, 42.03], [-95.5, 42.25], [-94.97, 42.03], [-94.82, 41.68], [-94.75, 41.65], [-94.5, 41.75], [-94.25, 41.65], [-94.0, 41.75], [-93.75, 41.65], [-93.5, 41.75], [-93.25, 41.65], [-93.0, 41.75], [-92.75, 41.65], [-92.5, 41.75], [-92.25, 41.65], [-92.0, 41.75], [-91.75, 41.65], [-91.5, 41.75], [-91.25, 41.65], [-91.0, 41.75], [-90.47, 41.53], [-90.25, 41.0], [-90.47, 40.47], [-90.82, 40.32], [-90.97, 39.97], [-91.5, 39.75], [-91.75, 39.85], [-92.0, 39.75], [-92.25, 39.85], [-92.32, 39.82], [-92.47, 39.47], [-93.0, 39.25], [-93.25, 39.35], [-93.32, 39.32], [-93.47, 38.97], [-94.0, 38.75], [-94.25, 38.85], [-94.5, 38.75], [-95.03, 38.97], [-95.2, 39.38], [-95.5, 39.25], [-96.03, 39.47], [-96.18, 39.82], [-96.25, 39.85], [-96.32, 39.82], [-96.47, 39.47], [-97.0, 39.25], [-97.53, 39.47], [-97.75, 40.0], [-97.53, 40.53], [-97.18, 40.68], [-97.03, 41.03], [-96.5, 41.25]]]]}, "2017-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.5, 41.25], [-96.25, 41.15], [-96.18, 41.18], [-96.15, 41.25], [-96.25, 41.5], [-96.03, 42.03], [-95.5, 42.25], [-94.97, 42.03], [-94.82, 41.68], [-94.75, 41.65], [-94.5, 41.75], [-94.25, 41.65], [-94.0, 41.75], [-93.75, 41.65], [-93.5, 41.75], [-93.25, 41.65], [-93.0, 41.75], [-92.75, 41.65], [-92.5, 41.75], [-92.25, 41.65], [-92.0, 41.75], [-91.75, 41.65], [-91.5, 41.75], [-91.25, 41.65], [-91.0, 41.75], [-90.47, 41.53], [-90.25, 41.0], [-90.47, 40.47], [-90.82, 40.32], [-90.97, 39.97], [-91.5, 39.75], [-91.75, 39.85], [-92.0, 39.75], [-92.25, 39.85], [-92.32, 39.82], [-92.47, 39.47], [-93.0, 39.25], [-93.25, 39.35], [-93.32, 39.32], [-93.47, 38.97], [-94.0, 38.75], [-94.25, 38.85], [-94.5, 38.75], [-95.03, 38.97], [-95.2, 39.38], [-95.5, 39.25], [-96.03, 39.47], [-96.18, 39.82], [-96.25, 39.85], [-96.32, 39.82], [-96.47, 39.47], [-97.0, 39.25], [-97.53, 39.47], [-97.75, 40.0], [-97.53, 40.53], [-97.18, 40.68], [-97.03, 41.03], [-96.5, 41.25]]]]}, "2017-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-96.5, 41.25], [-96.25, 41.15], [-96.18, 41.18], [-96.15, 41.25], [-96.25, 41.5], [-96.03, 42.03], [-95.5, 42.25], [-94.97, 42.03], [-94.82, 41.68], [-94.75, 41.65], [-94.5, 41.75], [-94.25, 41.65], [-94.0, 41.75], [-93.75, 41.65], [-93.5, 41.75], [-93.25, 41.65], [-93.0, 41.75], [-92.75, 41.65], [-92.5, 41.75], [-92.25, 41.65], [-92.0, 41.75], [-91.75, 41.65], [-91.5, 41.75], [-91.25, 41.65], [-91.0, 41.75], [-90.47, 41.53], [-90.25, 41.0], [-90.47, 40.47], [-90.82, 40.32], [-90.97, 39.97], [-91.5, 39.75], [-91.75, 39.85], [-92.0, 39.75], [-92.25, 39.85], [-92.32, 39.82], [-92.47, 39.47], [-93.0, 39.25], [-93.25, 39.35], [-93.32, 39.32], [-93.47, 38.97], [-94.0, 38.75], [-94.25, 38.85], [-94.5, 38.75], [-95.03, 38.97], [-95.2, 39.38], [-95.5, 39.25], [-96.03, 39.47], [-96.18, 39.82], [-96.25, 39.85], [-96.32, 39.82], [-96.47, 39.47], [-97.0, 39.25], [-97.53, 39.47], [-97.75, 40.0], [-97.53, 40.53], [-97.18, 40.68], [-97.03, 41.03], [-96.5, 41.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.882321567513657}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.218848654349259}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.525882636670303, 30.802601351451358, 31.397579180126513]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.102777694654776, 32.798351837300686, 32.884646767210654]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.6617172444904185, 5.1049426011319445, 5.889886117425413]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.532095055573336, 6.41183990294104, 6.882321567513657]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4274912548255163, 1.5535686941439413, 1.7672725949704713]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5937754704119427, 1.850004645503106, 2.101476334234439]}}