{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:29.743640", "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": "2012-Sep-13_to_2012-Sep-18_245.0_27.5"}, "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": 2012090002058}, "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": "September 13 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 18 2012"}, "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": 182063.0540183638}, "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": ["Mexico"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America", "N.Pacific-Ocean"]}, "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": ["North Pacific Ocean"]}, "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": 27.5}, "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": 245.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "245.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 241.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 247.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.0, 27.25], [-112.47, 27.03], [-112.32, 26.68], [-111.97, 26.53], [-111.75, 26.0], [-111.97, 25.47], [-112.5, 25.25], [-112.75, 25.35], [-113.0, 25.25], [-113.53, 25.47], [-113.75, 26.0], [-113.65, 26.25], [-113.75, 26.5], [-113.53, 27.03], [-113.0, 27.25]]], [[[-115.03, 29.53], [-114.5, 29.75], [-113.97, 29.53], [-113.75, 29.0], [-113.87, 28.7], [-113.47, 28.53], [-113.25, 28.0], [-113.47, 27.47], [-114.0, 27.25], [-114.53, 27.47], [-114.75, 28.0], [-114.62, 28.3], [-115.03, 28.47], [-115.25, 29.0], [-115.03, 29.53]]]]}, "2012-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-116.25, 28.0], [-116.03, 28.53], [-115.5, 28.75], [-116.03, 28.97], [-116.25, 29.5], [-116.03, 30.03], [-115.5, 30.25], [-114.97, 30.03], [-114.8, 29.63], [-114.5, 29.75], [-113.97, 29.53], [-113.82, 29.18], [-113.47, 29.03], [-113.25, 28.5], [-113.35, 28.25], [-113.25, 28.0], [-113.35, 27.75], [-113.25, 27.5], [-113.35, 27.25], [-113.32, 27.18], [-113.25, 27.15], [-113.0, 27.25], [-112.47, 27.03], [-112.32, 26.68], [-111.97, 26.53], [-111.75, 26.0], [-111.85, 25.75], [-111.75, 25.5], [-111.85, 25.25], [-111.75, 25.0], [-111.85, 24.75], [-111.75, 24.5], [-111.97, 23.97], [-112.5, 23.75], [-112.75, 23.85], [-113.0, 23.75], [-113.3, 23.88], [-113.47, 23.47], [-114.0, 23.25], [-114.25, 23.35], [-114.5, 23.25], [-115.03, 23.47], [-115.25, 24.0], [-115.15, 24.25], [-115.18, 24.32], [-115.53, 24.47], [-115.75, 25.0], [-115.65, 25.25], [-115.75, 25.5], [-115.65, 25.75], [-115.75, 26.0], [-115.65, 26.25], [-115.75, 26.5], [-115.65, 26.75], [-115.75, 27.0], [-115.65, 27.25], [-115.68, 27.32], [-116.03, 27.47], [-116.25, 28.0]], [[-115.25, 28.65], [-115.18, 28.68], [-115.15, 28.75], [-115.2, 28.88], [-115.5, 28.75], [-115.25, 28.65]]]]}, "2012-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-117.25, 28.0], [-117.03, 28.53], [-116.68, 28.68], [-116.53, 29.03], [-116.12, 29.2], [-116.25, 29.5], [-116.03, 30.03], [-115.5, 30.25], [-114.97, 30.03], [-114.82, 29.68], [-114.75, 29.65], [-114.5, 29.75], [-113.97, 29.53], [-113.82, 29.18], [-113.47, 29.03], [-113.25, 28.5], [-113.35, 28.25], [-113.25, 28.0], [-113.35, 27.75], [-113.25, 27.5], [-113.35, 27.25], [-113.32, 27.18], [-113.25, 27.15], [-113.0, 27.25], [-112.47, 27.03], [-112.32, 26.68], [-111.97, 26.53], [-111.75, 26.0], [-111.85, 25.75], [-111.75, 25.5], [-111.85, 25.25], [-111.75, 25.0], [-111.85, 24.75], [-111.75, 24.5], [-111.97, 23.97], [-112.5, 23.75], [-112.75, 23.85], [-113.0, 23.75], [-113.3, 23.88], [-113.47, 23.47], [-114.0, 23.25], [-114.25, 23.35], [-114.5, 23.25], [-115.03, 23.47], [-115.25, 24.0], [-115.15, 24.25], [-115.18, 24.32], [-115.53, 24.47], [-115.75, 25.0], [-115.65, 25.25], [-115.75, 25.5], [-115.65, 25.75], [-115.75, 26.0], [-115.65, 26.25], [-115.68, 26.32], [-115.75, 26.35], [-116.0, 26.25], [-116.25, 26.35], [-116.5, 26.25], [-117.03, 26.47], [-117.25, 27.0], [-117.15, 27.25], [-117.25, 27.5], [-117.15, 27.75], [-117.25, 28.0]]], [[[-118.0, 29.75], [-117.47, 29.53], [-117.25, 29.0], [-117.35, 28.75], [-117.25, 28.5], [-117.47, 27.97], [-118.0, 27.75], [-118.53, 27.97], [-118.75, 28.5], [-118.65, 28.75], [-118.75, 29.0], [-118.53, 29.53], [-118.0, 29.75]]]]}, "2012-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-119.03, 28.03], [-118.68, 28.18], [-118.65, 28.25], [-118.75, 28.5], [-118.65, 28.75], [-118.75, 29.0], [-118.53, 29.53], [-118.0, 29.75], [-117.47, 29.53], [-117.25, 29.0], [-117.35, 28.75], [-117.32, 28.68], [-117.25, 28.65], [-117.0, 28.75], [-116.75, 28.65], [-116.68, 28.68], [-116.53, 29.03], [-116.12, 29.2], [-116.25, 29.5], [-116.03, 30.03], [-115.5, 30.25], [-114.97, 30.03], [-114.82, 29.68], [-114.75, 29.65], [-114.5, 29.75], [-113.97, 29.53], [-113.82, 29.18], [-113.47, 29.03], [-113.25, 28.5], [-113.35, 28.25], [-113.25, 28.0], [-113.35, 27.75], [-113.25, 27.5], [-113.35, 27.25], [-113.32, 27.18], [-112.97, 27.03], [-112.82, 26.68], [-112.47, 26.53], [-112.32, 26.18], [-111.97, 26.03], [-111.75, 25.5], [-111.85, 25.25], [-111.75, 25.0], [-111.85, 24.75], [-111.75, 24.5], [-111.97, 23.97], [-112.5, 23.75], [-112.75, 23.85], [-113.0, 23.75], [-113.3, 23.88], [-113.47, 23.47], [-114.0, 23.25], [-114.25, 23.35], [-114.5, 23.25], [-115.03, 23.47], [-115.25, 24.0], [-115.15, 24.25], [-115.18, 24.32], [-115.53, 24.47], [-115.75, 25.0], [-115.65, 25.25], [-115.75, 25.5], [-115.65, 25.75], [-115.75, 26.0], [-115.65, 26.25], [-115.68, 26.32], [-115.75, 26.35], [-116.0, 26.25], [-116.25, 26.35], [-116.5, 26.25], [-117.03, 26.47], [-117.18, 26.82], [-117.25, 26.85], [-117.32, 26.82], [-117.47, 26.47], [-118.0, 26.25], [-118.25, 26.35], [-118.5, 26.25], [-119.03, 26.47], [-119.25, 27.0], [-119.15, 27.25], [-119.25, 27.5], [-119.03, 28.03]]]]}, "2012-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-119.03, 28.03], [-118.68, 28.18], [-118.65, 28.25], [-118.75, 28.5], [-118.65, 28.75], [-118.75, 29.0], [-118.53, 29.53], [-118.0, 29.75], [-117.47, 29.53], [-117.25, 29.0], [-117.35, 28.75], [-117.32, 28.68], [-117.25, 28.65], [-117.0, 28.75], [-116.75, 28.65], [-116.68, 28.68], [-116.53, 29.03], [-116.0, 29.25], [-115.75, 29.15], [-115.68, 29.18], [-115.53, 29.53], [-115.0, 29.75], [-114.47, 29.53], [-114.32, 29.18], [-113.97, 29.03], [-113.82, 28.68], [-113.47, 28.53], [-113.25, 28.0], [-113.47, 27.47], [-114.0, 27.25], [-114.25, 27.35], [-114.32, 27.32], [-114.47, 26.97], [-114.82, 26.82], [-114.97, 26.47], [-115.5, 26.25], [-115.75, 26.35], [-116.0, 26.25], [-116.25, 26.35], [-116.5, 26.25], [-117.03, 26.47], [-117.18, 26.82], [-117.25, 26.85], [-117.32, 26.82], [-117.47, 26.47], [-118.0, 26.25], [-118.25, 26.35], [-118.5, 26.25], [-119.03, 26.47], [-119.25, 27.0], [-119.15, 27.25], [-119.25, 27.5], [-119.03, 28.03]]]]}, "2012-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-119.03, 28.03], [-118.68, 28.18], [-118.53, 28.53], [-118.0, 28.75], [-117.75, 28.65], [-117.5, 28.75], [-117.25, 28.65], [-117.0, 28.75], [-116.75, 28.65], [-116.5, 28.75], [-116.25, 28.65], [-116.18, 28.68], [-116.03, 29.03], [-115.5, 29.25], [-115.25, 29.15], [-115.0, 29.25], [-114.75, 29.15], [-114.5, 29.25], [-113.97, 29.03], [-113.75, 28.5], [-113.85, 28.25], [-113.75, 28.0], [-113.97, 27.47], [-114.32, 27.32], [-114.47, 26.97], [-114.82, 26.82], [-114.97, 26.47], [-115.5, 26.25], [-115.75, 26.35], [-116.0, 26.25], [-116.53, 26.47], [-116.68, 26.82], [-116.75, 26.85], [-117.0, 26.75], [-117.25, 26.85], [-117.32, 26.82], [-117.47, 26.47], [-118.0, 26.25], [-118.25, 26.35], [-118.5, 26.25], [-119.03, 26.47], [-119.25, 27.0], [-119.15, 27.25], [-119.25, 27.5], [-119.03, 28.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.260496127152294}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.518895782331382}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.83086645770652, 26.876106094747627, 26.3939517840912, 25.612139441018087, 23.965258735210398, 23.370483713146825]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.834900983262912, 30.580739916398613, 31.34771636538659, 29.00827197314618, 27.654407318451888, 24.557392256701576]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.5313039555020738, 3.6371280545934273, 3.8740672591064813, 3.5003049295748516, 3.3946065370837677, 2.845923269790477]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.3359260043196173, 5.796848356233625, 6.260496127152294, 5.3635800453831735, 4.322734870616671, 3.507439393829827]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3387706482839863, 1.9571744547090577, 2.0754970390929817, 1.9348403286092433, 1.979154154807408, 1.6999510738546884]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.417467265049694, 2.4051640477282916, 2.663032116348462, 2.6824453371073873, 2.3347900859835584, 1.8397112674539136]}}