Arthur G Lilienthal

Water surface elevation (NAVD 88) for flood-inundation maps for Cayuga Inlet, Sixmile Creek, Cascadilla Creek, and Fall Creek at Ithaca, New York

This dataset contains raster grids of water surface elevation for 15 modeled water-surface profiles at 5 flood frequencies (50- , 10,- 2- , 1- , and 0.2-percent annual exceedance probabilities, or 2- , 10- , 50- , 100- , and 500-year recurrence intervals) and 3 lake levels (representing average conditions, a 2-year-high condition, and a 100-year-high condition).

Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Cascadilla Creek, Cayuga Inlet, Cayuga Lake, Fall Creek, Inundation map, All tags... Ithaca, Sixmile Creek, Tompkins, floods, hazard preparedness, inlandWaters, mathematical modeling, streamflow, Fewer tags

Digital flood-inundation maps for a 2.9-square-mile area of Ithaca, New York, were created in 2015–18 by the U.S. Geological Survey in cooperation with the City of Ithaca, New York, and the New York State Department of State. The flood-inundation maps depict estimates of the maximum areal extent and depth of flooding corresponding to selected flood frequencies for Cayuga Inlet, Sixmile Creek, Cascadilla Creek, and Fall Creek and selected water-surface elevations of Cayuga Lake. Flood profiles for the stream reaches were computed by combining a one-dimensional step-backwater model for the stream channels and a two-dimensional model for the overbank areas. The resulting hydraulic model was calibrated by using water-surface...

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Cascadilla Creek, Cayuga Inlet, Cayuga Lake, Fall Creek, Inundation map, All tags... Ithaca, Sixmile Creek, Tompkins, USGS Science Data Catalog (SDC), Water Resources, floods, hazard preparedness, inlandWaters, mathematical modeling, streamflow, Fewer tags

HEC-RAS Model for flood-inundation maps for Cayuga Inlet, Sixmile Creek, Cascadilla Creek, and Fall Creek at Ithaca, New York

Flood profiles for the stream reaches were computed by combining a one-dimensional step-backwater model for the stream channels and a two-dimensional model for the overbank areas. The resulting hydraulic model was calibrated by using water-surface profiles from five observed storm events. The model was then used to compute 15 water-surface profiles for 5 flood frequencies (50- , 10- , 2- , 1- , and 0.2-percent annual exceedance probabilities, or 2- , 10- , 50- , 100- , and 500-year recurrence intervals) and 3 lake levels (representing average conditions, a 2-year-high condition, and a 100-year-high condition). The geographic information system flood-extent polygons, depth grids, and water surface elevation grids...

Tags: Cascadilla Creek, Cayuga Inlet, Cayuga Lake, Fall Creek, Inundation map, All tags... Ithaca, Sixmile Creek, Tompkins, floods, hazard preparedness, inlandWaters, mathematical modeling, streamflow, Fewer tags

Water depth for flood-inundation maps for Cayuga Inlet, Sixmile Creek, Cascadilla Creek, and Fall Creek at Ithaca, New York

This dataset contains raster grids of inundation depth for 15 modeled water-surface profiles at 5 flood frequencies (50- , 10- , 2- , 1- , and 0.2-percent annual exceedance probabilities, or 2- , 10- , 50- , 100- , and 500-year recurrence intervals) and 3 lake levels (representing average conditions, a 2-year-high condition, and a 100-year-high condition).

Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Cascadilla Creek, Cayuga Inlet, Cayuga Lake, Fall Creek, Inundation map, All tags... Ithaca, Sixmile Creek, Tompkins, floods, hazard preparedness, inlandWaters, mathematical modeling, streamflow, Fewer tags

Flood-Frequency Data for Six Selected Streamgages Following the Central New York Flood of October 31 – November 3, 2019

This U.S. Geological Survey (USGS) data release contains batch formatted annual peak streamflow data (PkFlows_AllSites.txt) through the 2020 water year for six selected USGS streamgages (01321000, 01342797, 01343060, 01346000, 01347000, and 01348000) that recorded the flood of October 31 – November 3, 2019, which severely affected the Mohawk Valley and southern Adirondack region in central New York State. This data release also contains batch formatted specification (PkFlows_AllSites.psf) and output (PEAKFLOWS_ALLSITES.PRT) files from log-Pearson type III (LPIII) flood-frequency analysis of the annual peak streamflow data in version 7.4 of the USGS PeakFQ software (Flynn and others, 2006), which implements the Bulletin...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: East Canada Creek, Flood Science, Groundwater and Streamflow Information, Hydrology, Low Flow or Peak Flow, All tags... Mohawk River, New York, Sacandaga River, USGS Science Data Catalog (SDC), USGS:62ebdf6bd34eacf539724c9d, West Canada Creek, floods, hydrology, streamflow, water resources, Fewer tags