Lots of people have heard of the Horton Grand Hotel in downtown San Diego, CA. Here's a view of the hotel that not too many people see - a view from the roof of this historic building. 

ISE was involved in a forensic case that required us to do some work on top of the hotel. The view is a panoramic one close to sunset looking towards the west towards Seaport Village and the convention center. 

What's New at ISE...

Historic Preservation Services at ISEISE’s historical preservation services are a natural extension of our structural dynamics services which we hav...
Environmental Vibration Solutions at ISEISE is a recognized leader in mechanical and dynamic vibration analysis, and has a full range of portable moda...
Aeroelastic & Gas Dynamics Analysis at ISEISE is one of the only consulting firms specializing in the commercial solution of aeroelastic and high-...
We\'ve received several inquiries on how civil modal analysis is performed and what instruments are used. Shown in the photo is ISE\'s \'modal sledgeham...
ISE\'s Noise Monitoring & Noise Control SolutionsISE specializes in custom noise control and monitoring solutions for every imaginable industry app...
ISE is currently developing a robust method for the determination of structural defects within laminated composite aerospace structures. The current m...
Expert Witness & Litigation AssistanceAt the heart of any forensic problem involving the laws of physics are two fundamental quantities: the path ...
Air Quality Conformity at ISEISE offers a comprehensive suite of air quality and air toxics analyses geared principally towards prediction and mitigat...
ISE has completed work on our laser optics test bench. The focal point is our newly built one-watt Class IV 655nm continuous wave (CW) laser capable o...
The current version of the ISE Industrial Source Model (IS3) is sure to make the competitors cringe. Version 3.9 touts some highly advanced features s...
The ISE Rayleigh Wave (R-Wave) seismic vibration prediction model hit another milestone in 2011 in development by being able to accurately predict sur...
Here\'s a photo from the archives of the Olivenhain Dam inundation area circa 1998 prior to construction of the dam. ISE took this photo during some e...
We\'re not sure how well this works, but you have the give the City of San Francisco a \'A\' for effort.This sign is located at the bottom of Lombard Str...
Historic Preservation PlansISE’s structural risk assessment services are a natural extension of our structural dynamics services. We take the concep...
Architectural Acoustics at ISEISE is one of only a small handful of firms offering a complete suite of acoustical engineering services tailored specif...
Computational Fluid Dynamics at ISEISE are experts in the field of computational fluid dynamics (CFD) and wave propagation analysis. We utilize, and h...
Modal Analysis Services Available at ISEModal analysis is the experimental determination of the vibrational properties (i.e., normal modes) of a physi...
Lighting & Photometric AssessmentsISE provides a complete range of lighting and photometric services geared towards commercial and industrial comp...
 Lots of people have heard of the Horton Grand Hotel in downtown San Diego, CA. Here\'s a view of the hotel that not too many people see - a view from...
Geophysics & Blast Response Mitigation at ISEISE has been working for close to two decades on innovative and unique engineering solutions to the p...

Featured Video Clip (Shock Wave)

A video taken by ISE showing the supersonic expansion of high pressure natural gas in a pipeline. 

The shock wave is clearly visible at the 1:00 min mark as a white cloud above the end of the pipe and produces an acoustic overpressure of close to 140 dB - which is as loud as a rocket engine.