{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:46.334624", "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": "2023-Oct-18_to_2023-Oct-27_91.5_49.5"}, "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": 2023100001697}, "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": "October 18 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 27 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 79054.20933028028}, "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": ["Mongolia", "Russian Federation"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Europe"]}, "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": 49.5}, "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": 91.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "91.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 86.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 93.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[88.5, 51.75], [88.75, 51.65], [89.0, 51.75], [89.25, 51.65], [89.32, 51.68], [89.47, 52.03], [90.0, 52.25], [90.53, 52.03], [90.68, 51.68], [90.75, 51.65], [91.0, 51.75], [91.25, 51.65], [91.5, 51.75], [91.75, 51.65], [92.0, 51.75], [92.53, 51.53], [92.68, 51.18], [92.75, 51.15], [93.0, 51.25], [93.25, 51.15], [93.5, 51.25], [94.03, 51.03], [94.25, 50.5], [94.03, 49.97], [93.68, 49.82], [93.65, 49.75], [93.68, 49.68], [94.03, 49.53], [94.25, 49.0], [94.03, 48.47], [93.5, 48.25], [93.25, 48.35], [93.0, 48.25], [92.5, 48.46], [92.18, 48.32], [92.15, 48.25], [92.25, 48.0], [92.03, 47.47], [91.5, 47.25], [90.97, 47.47], [90.75, 48.0], [90.85, 48.25], [90.75, 48.5], [90.85, 48.75], [90.82, 48.82], [90.47, 48.97], [90.32, 49.32], [90.25, 49.35], [90.0, 49.25], [89.47, 49.47], [89.32, 49.82], [89.25, 49.85], [89.0, 49.75], [88.75, 49.85], [88.5, 49.75], [88.25, 49.85], [88.0, 49.75], [87.5, 49.96], [87.0, 49.75], [86.75, 49.85], [86.5, 49.75], [86.25, 49.85], [86.0, 49.75], [85.47, 49.97], [85.25, 50.5], [85.35, 50.75], [85.25, 51.0], [85.47, 51.53], [86.0, 51.75], [86.5, 51.54], [87.0, 51.75], [87.25, 51.65], [87.5, 51.75], [87.75, 51.65], [88.0, 51.75], [88.25, 51.65], [88.5, 51.75]], [[91.63, 50.2], [91.75, 50.15], [91.88, 50.2], [91.87, 50.22], [91.85, 50.25], [91.82, 50.32], [91.75, 50.35], [91.68, 50.32], [91.63, 50.2]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Siberia", "E.Siberia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[91.5, 48.75], [90.97, 48.97], [90.75, 49.5], [90.97, 50.03], [91.5, 50.25], [92.03, 50.03], [92.25, 49.5], [92.03, 48.97], [91.5, 48.75]]], [[[86.5, 49.75], [85.97, 49.97], [85.75, 50.5], [85.97, 51.03], [86.5, 51.25], [87.03, 51.03], [87.25, 50.5], [87.03, 49.97], [86.5, 49.75]]]]}, "2023-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[91.97, 51.03], [92.5, 51.25], [93.03, 51.03], [93.25, 50.5], [93.03, 49.97], [92.5, 49.75], [92.07, 49.93], [92.25, 49.5], [92.03, 48.97], [91.5, 48.75], [90.97, 48.97], [90.75, 49.5], [90.97, 50.03], [91.5, 50.25], [91.93, 50.07], [91.75, 50.5], [91.97, 51.03]]], [[[85.47, 51.53], [86.0, 51.75], [86.5, 51.54], [87.0, 51.75], [87.53, 51.53], [87.75, 51.0], [87.65, 50.75], [87.75, 50.5], [87.53, 49.97], [87.0, 49.75], [86.75, 49.85], [86.5, 49.75], [86.25, 49.85], [86.0, 49.75], [85.47, 49.97], [85.25, 50.5], [85.35, 50.75], [85.25, 51.0], [85.47, 51.53]]]]}, "2023-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[90.0, 52.25], [90.53, 52.03], [90.75, 51.5], [90.65, 51.25], [90.68, 51.18], [91.03, 51.03], [91.25, 50.5], [91.07, 50.07], [91.5, 50.25], [91.93, 50.07], [91.75, 50.5], [91.97, 51.03], [92.5, 51.25], [93.03, 51.03], [93.25, 50.5], [93.03, 49.97], [92.5, 49.75], [92.07, 49.93], [92.25, 49.5], [92.03, 48.97], [91.5, 48.75], [90.97, 48.97], [90.75, 49.5], [90.93, 49.93], [90.5, 49.75], [89.97, 49.97], [89.82, 50.32], [89.75, 50.35], [89.5, 50.25], [88.97, 50.47], [88.75, 51.0], [88.97, 51.53], [89.32, 51.68], [89.47, 52.03], [90.0, 52.25]]], [[[85.47, 51.53], [86.0, 51.75], [86.5, 51.54], [87.0, 51.75], [87.25, 51.65], [87.5, 51.75], [88.03, 51.53], [88.25, 51.0], [88.03, 50.47], [87.68, 50.32], [87.53, 49.97], [87.0, 49.75], [86.75, 49.85], [86.5, 49.75], [86.25, 49.85], [86.0, 49.75], [85.47, 49.97], [85.25, 50.5], [85.35, 50.75], [85.25, 51.0], [85.47, 51.53]]]]}, "2023-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[85.25, 51.0], [85.47, 51.53], [86.0, 51.75], [86.5, 51.54], [87.0, 51.75], [87.25, 51.65], [87.5, 51.75], [87.75, 51.65], [88.0, 51.75], [88.25, 51.65], [88.5, 51.75], [88.75, 51.65], [89.0, 51.75], [89.25, 51.65], [89.32, 51.68], [89.47, 52.03], [90.0, 52.25], [90.53, 52.03], [90.68, 51.68], [90.75, 51.65], [91.0, 51.75], [91.25, 51.65], [91.5, 51.75], [91.75, 51.65], [92.0, 51.75], [92.53, 51.53], [92.68, 51.18], [92.75, 51.15], [93.0, 51.25], [93.25, 51.15], [93.5, 51.25], [94.03, 51.03], [94.25, 50.5], [94.03, 49.97], [93.68, 49.82], [93.65, 49.75], [93.75, 49.5], [93.53, 48.97], [93.0, 48.75], [92.75, 48.85], [92.68, 48.82], [92.53, 48.47], [92.18, 48.32], [92.15, 48.25], [92.25, 48.0], [92.03, 47.47], [91.5, 47.25], [90.97, 47.47], [90.75, 48.0], [90.85, 48.25], [90.75, 48.5], [90.85, 48.75], [90.82, 48.82], [90.47, 48.97], [90.32, 49.32], [90.25, 49.35], [90.0, 49.25], [89.47, 49.47], [89.32, 49.82], [89.25, 49.85], [89.0, 49.75], [88.75, 49.85], [88.5, 49.75], [88.25, 49.85], [88.0, 49.75], [87.5, 49.96], [87.0, 49.75], [86.75, 49.85], [86.5, 49.75], [86.25, 49.85], [86.0, 49.75], [85.47, 49.97], [85.25, 50.5], [85.35, 50.75], [85.25, 51.0]], [[91.88, 50.2], [91.82, 50.32], [91.75, 50.35], [91.68, 50.32], [91.63, 50.2], [91.75, 50.15], [91.88, 50.2]]]]}, "2023-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[85.25, 51.0], [85.47, 51.53], [86.0, 51.75], [86.5, 51.54], [87.0, 51.75], [87.25, 51.65], [87.5, 51.75], [87.75, 51.65], [88.0, 51.75], [88.25, 51.65], [88.5, 51.75], [88.75, 51.65], [89.0, 51.75], [89.25, 51.65], [89.32, 51.68], [89.47, 52.03], [90.0, 52.25], [90.53, 52.03], [90.68, 51.68], [90.75, 51.65], [91.0, 51.75], [91.25, 51.65], [91.5, 51.75], [91.75, 51.65], [92.0, 51.75], [92.53, 51.53], [92.68, 51.18], [92.75, 51.15], [93.0, 51.25], [93.25, 51.15], [93.5, 51.25], [94.03, 51.03], [94.25, 50.5], [94.03, 49.97], [93.68, 49.82], [93.65, 49.75], [93.75, 49.5], [93.65, 49.25], [93.75, 49.0], [93.53, 48.47], [93.0, 48.25], [92.5, 48.46], [92.18, 48.32], [92.15, 48.25], [92.25, 48.0], [92.03, 47.47], [91.5, 47.25], [90.97, 47.47], [90.75, 48.0], [90.85, 48.25], [90.75, 48.5], [90.85, 48.75], [90.82, 48.82], [90.47, 48.97], [90.32, 49.32], [90.25, 49.35], [90.0, 49.25], [89.47, 49.47], [89.32, 49.82], [89.25, 49.85], [89.0, 49.75], [88.75, 49.85], [88.5, 49.75], [88.25, 49.85], [88.0, 49.75], [87.5, 49.96], [87.0, 49.75], [86.75, 49.85], [86.5, 49.75], [86.25, 49.85], [86.0, 49.75], [85.47, 49.97], [85.25, 50.5], [85.35, 50.75], [85.25, 51.0]], [[91.88, 50.2], [91.82, 50.32], [91.75, 50.35], [91.68, 50.32], [91.63, 50.2], [91.75, 50.15], [91.88, 50.2]]]]}, "2023-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[87.25, 51.0], [87.47, 51.53], [88.0, 51.75], [88.25, 51.65], [88.5, 51.75], [88.75, 51.65], [89.0, 51.75], [89.25, 51.65], [89.5, 51.75], [89.75, 51.65], [90.0, 51.75], [90.25, 51.65], [90.5, 51.75], [90.75, 51.65], [91.0, 51.75], [91.25, 51.65], [91.5, 51.75], [91.75, 51.65], [92.0, 51.75], [92.53, 51.53], [92.68, 51.18], [92.75, 51.15], [93.0, 51.25], [93.25, 51.15], [93.5, 51.25], [94.03, 51.03], [94.25, 50.5], [94.03, 49.97], [93.68, 49.82], [93.65, 49.75], [93.75, 49.5], [93.65, 49.25], [93.75, 49.0], [93.53, 48.47], [93.0, 48.25], [92.5, 48.46], [92.18, 48.32], [92.15, 48.25], [92.25, 48.0], [92.03, 47.47], [91.5, 47.25], [90.97, 47.47], [90.75, 48.0], [90.85, 48.25], [90.75, 48.5], [90.85, 48.75], [90.82, 48.82], [90.47, 48.97], [90.32, 49.32], [90.25, 49.35], [90.0, 49.25], [89.47, 49.47], [89.32, 49.82], [89.25, 49.85], [89.0, 49.75], [88.75, 49.85], [88.5, 49.75], [88.25, 49.85], [88.0, 49.75], [87.47, 49.97], [87.25, 50.5], [87.35, 50.75], [87.25, 51.0]], [[91.88, 50.2], [91.82, 50.32], [91.75, 50.35], [91.68, 50.32], [91.63, 50.2], [91.75, 50.15], [91.88, 50.2]]]]}, "2023-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.47, 49.53], [93.0, 49.75], [93.53, 49.53], [93.75, 49.0], [93.53, 48.47], [93.0, 48.25], [92.47, 48.47], [92.25, 49.0], [92.47, 49.53]]]]}, "2023-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.97, 49.53], [93.5, 49.75], [94.03, 49.53], [94.25, 49.0], [94.03, 48.47], [93.5, 48.25], [92.97, 48.47], [92.75, 49.0], [92.97, 49.53]]]]}, "2023-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.97, 49.53], [93.5, 49.75], [94.03, 49.53], [94.25, 49.0], [94.03, 48.47], [93.5, 48.25], [92.97, 48.47], [92.75, 49.0], [92.97, 49.53]]]]}, "2023-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.97, 49.53], [93.5, 49.75], [94.03, 49.53], [94.25, 49.0], [94.03, 48.47], [93.5, 48.25], [92.97, 48.47], [92.75, 49.0], [92.97, 49.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.756825576697452}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.35224752027136}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [1.610864486637297, 3.421890333896215, 1.618375527604769, 2.1190860443424526, 2.578014184834956, 2.4743994778627325, 5.439962514528702, 6.0574773826376145, 7.192487644748155, 9.781190907159385]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.7396314547054317, 8.222726549690492, 7.8083930040783684, 8.432882410228444, 8.586782106785847, 10.512291109082014, 5.439962514528702, 6.0574773826376145, 7.192487644748155, 9.781190907159385]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.438432081098881, 5.14121983129847, 5.437244552904512, 5.9054293220583425, 6.748024690164023, 7.130623029188401, 4.942623428998957, 4.731441569050503, 6.315397832328756, 9.34015318119981]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.50544488140315, 6.208644930582807, 6.677308248009069, 9.756825576697452, 9.44677715222042, 9.460035834190421, 4.942623428998957, 4.731441569050503, 6.315397832328756, 9.34015318119981]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2390038977768043, 1.4141211453264602, 1.3569883461922643, 1.470221452630733, 1.6506468736368027, 1.7917145915972477, 1.3596028358476235, 1.4322817132523378, 1.8945276922902632, 2.728216413682461]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.300724335961749, 1.580145770606443, 1.5684030455615205, 2.079393881775834, 2.0110803122464973, 2.6179342802343473, 1.3596028358476235, 1.4322817132523378, 1.8945276922902632, 2.728216413682461]}}