{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:16.305913", "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-Aug-16_to_2013-Aug-21_249.0_45.5"}, "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": 2013080002473}, "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": "August 16 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 21 2013"}, "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": 181780.58192496467}, "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": ["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": 45.5}, "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": 249.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "249.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 246.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 254.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 40.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 47.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.25, 45.0], [-110.03, 45.53], [-109.5, 45.75], [-108.97, 45.53], [-108.75, 45.0], [-108.93, 44.57], [-108.5, 44.75], [-107.97, 44.53], [-107.75, 44.0], [-107.97, 43.47], [-108.5, 43.25], [-109.03, 43.47], [-109.25, 44.0], [-109.07, 44.43], [-109.5, 44.25], [-110.03, 44.47], [-110.25, 45.0]]], [[[-114.25, 45.5], [-114.03, 46.03], [-113.5, 46.25], [-113.25, 46.15], [-113.0, 46.25], [-112.75, 46.15], [-112.5, 46.25], [-112.25, 46.15], [-112.18, 46.18], [-112.12, 46.3], [-112.53, 46.47], [-112.75, 47.0], [-112.53, 47.53], [-112.0, 47.75], [-111.47, 47.53], [-111.25, 47.0], [-111.03, 47.53], [-110.5, 47.75], [-110.25, 47.65], [-110.0, 47.75], [-109.47, 47.53], [-109.25, 47.0], [-109.47, 46.47], [-110.0, 46.25], [-110.25, 46.35], [-110.5, 46.25], [-110.93, 46.43], [-110.82, 46.18], [-110.47, 46.03], [-110.25, 45.5], [-110.47, 44.97], [-111.0, 44.75], [-111.5, 44.96], [-112.0, 44.75], [-112.25, 44.85], [-112.5, 44.75], [-112.75, 44.85], [-113.0, 44.75], [-113.25, 44.85], [-113.5, 44.75], [-114.03, 44.97], [-114.25, 45.5]], [[-111.37, 46.7], [-111.07, 46.57], [-111.25, 47.0], [-111.37, 46.7]]]]}, "2013-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.03, 44.97], [-114.25, 45.5], [-114.03, 46.03], [-113.5, 46.25], [-113.25, 46.15], [-113.0, 46.25], [-112.75, 46.15], [-112.5, 46.25], [-112.25, 46.15], [-112.18, 46.18], [-112.12, 46.3], [-112.53, 46.47], [-112.75, 47.0], [-112.53, 47.53], [-112.0, 47.75], [-111.75, 47.65], [-111.5, 47.75], [-111.25, 47.65], [-111.0, 47.75], [-110.75, 47.65], [-110.5, 47.75], [-110.25, 47.65], [-110.0, 47.75], [-109.47, 47.53], [-109.32, 47.18], [-108.97, 47.03], [-108.75, 46.5], [-108.85, 46.25], [-108.75, 46.0], [-108.87, 45.7], [-108.47, 45.53], [-108.32, 45.18], [-108.2, 45.13], [-108.03, 45.53], [-107.5, 45.75], [-106.97, 45.53], [-106.75, 45.0], [-106.85, 44.75], [-106.82, 44.68], [-106.47, 44.53], [-106.25, 44.0], [-106.46, 43.5], [-106.32, 43.18], [-105.97, 43.03], [-105.82, 42.68], [-105.47, 42.53], [-105.25, 42.0], [-105.47, 41.47], [-106.0, 41.25], [-106.53, 41.47], [-106.68, 41.82], [-106.75, 41.85], [-107.0, 41.75], [-107.43, 41.93], [-107.25, 41.5], [-107.35, 41.25], [-107.25, 41.0], [-107.47, 40.47], [-108.0, 40.25], [-108.53, 40.47], [-108.75, 41.0], [-108.65, 41.25], [-108.7, 41.38], [-109.0, 41.25], [-109.53, 41.47], [-109.75, 42.0], [-109.53, 42.53], [-109.18, 42.68], [-109.12, 42.8], [-109.53, 42.97], [-109.7, 43.38], [-109.82, 43.32], [-109.97, 42.97], [-110.5, 42.75], [-110.75, 42.85], [-111.0, 42.75], [-111.53, 42.97], [-111.75, 43.5], [-111.62, 43.8], [-112.03, 43.97], [-112.18, 44.32], [-112.25, 44.35], [-112.5, 44.25], [-113.03, 44.47], [-113.18, 44.82], [-113.25, 44.85], [-113.5, 44.75], [-114.03, 44.97]]]]}, "2013-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.03, 44.97], [-114.25, 45.5], [-114.03, 46.03], [-113.5, 46.25], [-113.25, 46.15], [-113.0, 46.25], [-112.75, 46.15], [-112.68, 46.18], [-112.54, 46.5], [-112.75, 47.0], [-112.53, 47.53], [-112.0, 47.75], [-111.75, 47.65], [-111.5, 47.75], [-111.25, 47.65], [-111.0, 47.75], [-110.75, 47.65], [-110.5, 47.75], [-110.25, 47.65], [-110.0, 47.75], [-109.47, 47.53], [-109.32, 47.18], [-108.97, 47.03], [-108.75, 46.5], [-108.85, 46.25], [-108.75, 46.0], [-108.85, 45.75], [-108.82, 45.68], [-108.47, 45.53], [-108.32, 45.18], [-108.2, 45.13], [-108.03, 45.53], [-107.5, 45.75], [-106.97, 45.53], [-106.75, 45.0], [-106.85, 44.75], [-106.82, 44.68], [-106.47, 44.53], [-106.25, 44.0], [-106.35, 43.75], [-106.25, 43.5], [-106.35, 43.25], [-106.32, 43.18], [-105.97, 43.03], [-105.82, 42.68], [-105.47, 42.53], [-105.25, 42.0], [-105.47, 41.47], [-106.0, 41.25], [-106.25, 41.35], [-106.32, 41.32], [-106.47, 40.97], [-107.0, 40.75], [-107.25, 40.85], [-107.32, 40.82], [-107.47, 40.47], [-108.0, 40.25], [-108.53, 40.47], [-108.75, 41.0], [-108.65, 41.25], [-108.7, 41.38], [-109.0, 41.25], [-109.53, 41.47], [-109.68, 41.82], [-110.03, 41.97], [-110.18, 42.32], [-110.25, 42.35], [-110.5, 42.25], [-110.75, 42.35], [-110.82, 42.32], [-110.97, 41.97], [-111.5, 41.75], [-111.75, 41.85], [-112.0, 41.75], [-112.53, 41.97], [-112.75, 42.5], [-112.65, 42.75], [-112.75, 43.0], [-112.65, 43.25], [-112.68, 43.32], [-113.03, 43.47], [-113.25, 44.0], [-113.15, 44.25], [-113.25, 44.5], [-113.15, 44.75], [-113.18, 44.82], [-113.25, 44.85], [-113.5, 44.75], [-114.03, 44.97]]]]}, "2013-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.15, 44.75], [-113.25, 45.0], [-113.15, 45.25], [-113.25, 45.5], [-113.03, 46.03], [-112.68, 46.18], [-112.53, 46.53], [-112.12, 46.7], [-112.25, 47.0], [-112.03, 47.53], [-111.5, 47.75], [-111.25, 47.65], [-111.0, 47.75], [-110.47, 47.53], [-110.3, 47.13], [-110.0, 47.25], [-109.75, 47.15], [-109.5, 47.25], [-108.97, 47.03], [-108.75, 46.5], [-108.85, 46.25], [-108.75, 46.0], [-108.85, 45.75], [-108.82, 45.68], [-108.47, 45.53], [-108.32, 45.18], [-108.2, 45.13], [-108.03, 45.53], [-107.5, 45.75], [-106.97, 45.53], [-106.75, 45.0], [-106.85, 44.75], [-106.82, 44.68], [-106.47, 44.53], [-106.25, 44.0], [-106.35, 43.75], [-106.25, 43.5], [-106.35, 43.25], [-106.32, 43.18], [-105.97, 43.03], [-105.82, 42.68], [-105.47, 42.53], [-105.25, 42.0], [-105.47, 41.47], [-106.0, 41.25], [-106.25, 41.35], [-106.32, 41.32], [-106.47, 40.97], [-107.0, 40.75], [-107.25, 40.85], [-107.32, 40.82], [-107.47, 40.47], [-108.0, 40.25], [-108.53, 40.47], [-108.75, 41.0], [-108.65, 41.25], [-108.7, 41.38], [-109.0, 41.25], [-109.53, 41.47], [-109.68, 41.82], [-110.03, 41.97], [-110.18, 42.32], [-110.25, 42.35], [-110.5, 42.25], [-110.75, 42.35], [-110.82, 42.32], [-110.97, 41.97], [-111.5, 41.75], [-111.75, 41.85], [-112.0, 41.75], [-112.53, 41.97], [-112.75, 42.5], [-112.65, 42.75], [-112.75, 43.0], [-112.65, 43.25], [-112.68, 43.32], [-113.03, 43.47], [-113.25, 44.0], [-113.15, 44.25], [-113.25, 44.5], [-113.15, 44.75]]]]}, "2013-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.15, 44.75], [-113.25, 45.0], [-113.15, 45.25], [-113.25, 45.5], [-113.03, 46.03], [-112.68, 46.18], [-112.53, 46.53], [-112.0, 46.75], [-111.75, 46.65], [-111.5, 46.75], [-111.25, 46.65], [-111.0, 46.75], [-110.7, 46.63], [-110.53, 47.03], [-110.0, 47.25], [-109.47, 47.03], [-109.32, 46.68], [-108.97, 46.53], [-108.75, 46.0], [-108.85, 45.75], [-108.82, 45.68], [-108.47, 45.53], [-108.32, 45.18], [-108.0, 45.04], [-107.5, 45.25], [-106.97, 45.03], [-106.82, 44.68], [-106.47, 44.53], [-106.25, 44.0], [-106.35, 43.75], [-106.25, 43.5], [-106.35, 43.25], [-106.32, 43.18], [-105.97, 43.03], [-105.82, 42.68], [-105.47, 42.53], [-105.25, 42.0], [-105.47, 41.47], [-106.0, 41.25], [-106.25, 41.35], [-106.32, 41.32], [-106.47, 40.97], [-107.0, 40.75], [-107.25, 40.85], [-107.32, 40.82], [-107.47, 40.47], [-108.0, 40.25], [-108.53, 40.47], [-108.75, 41.0], [-108.65, 41.25], [-108.75, 41.5], [-108.62, 41.8], [-109.0, 41.96], [-109.5, 41.75], [-110.03, 41.97], [-110.18, 42.32], [-110.25, 42.35], [-110.5, 42.25], [-110.75, 42.35], [-110.82, 42.32], [-110.97, 41.97], [-111.5, 41.75], [-111.75, 41.85], [-112.0, 41.75], [-112.53, 41.97], [-112.75, 42.5], [-112.65, 42.75], [-112.75, 43.0], [-112.65, 43.25], [-112.68, 43.32], [-113.03, 43.47], [-113.25, 44.0], [-113.15, 44.25], [-113.25, 44.5], [-113.15, 44.75]]]]}, "2013-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.53, 41.47], [-106.75, 42.0], [-106.53, 42.53], [-106.0, 42.75], [-105.47, 42.53], [-105.25, 42.0], [-105.47, 41.47], [-106.0, 41.25], [-106.53, 41.47]]], [[[-109.25, 44.0], [-109.03, 44.53], [-108.5, 44.75], [-107.97, 44.53], [-107.75, 44.0], [-107.97, 43.47], [-108.5, 43.25], [-109.03, 43.47], [-109.25, 44.0]]], [[[-111.57, 44.57], [-111.68, 44.82], [-112.03, 44.97], [-112.25, 45.5], [-112.03, 46.03], [-111.5, 46.25], [-111.25, 46.15], [-111.0, 46.25], [-110.75, 46.15], [-110.5, 46.25], [-109.97, 46.03], [-109.75, 45.5], [-109.97, 44.97], [-110.32, 44.82], [-110.47, 44.47], [-111.0, 44.25], [-111.43, 44.43], [-111.25, 44.0], [-111.35, 43.75], [-111.25, 43.5], [-111.47, 42.97], [-112.0, 42.75], [-112.53, 42.97], [-112.75, 43.5], [-112.65, 43.75], [-112.75, 44.0], [-112.53, 44.53], [-112.0, 44.75], [-111.57, 44.57]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.888060839223954}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.0041801113140245}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.116623416296704, 21.17777778181727, 21.509549871901356, 21.423591053400912, 21.46086237714252, 21.441274896374637]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.88653519987423, 26.34635509119414, 27.029481199113604, 26.130246591596404, 26.32296317232391, 24.943168266612645]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.113123179381045, 3.977705913482728, 4.006164352709316, 3.9334628049773235, 4.120914054854976, 3.667313902532875]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.114500395975938, 4.898914378735185, 5.283347638376085, 5.443798857483557, 5.888060839223954, 4.127522955091877]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3070781000637772, 1.3637464356926838, 1.4350398546247742, 1.406763354965325, 1.4777719908021403, 1.263173484059384]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4777587877671294, 1.6882208708308728, 1.9342319107577879, 1.854183377419816, 1.9421548216225912, 1.3426861826480312]}}