tag:blogger.com,1999:blog-7478606652950905956.post2469035612753902340..comments2024-03-18T22:50:29.792-07:00Comments on Cliff Mass Weather Blog: Inversion and A Significant ChangeCliff Mass Weather Bloghttp://www.blogger.com/profile/13948649423540350788noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-7478606652950905956.post-54895934352251794242010-02-22T20:06:28.241-08:002010-02-22T20:06:28.241-08:00Thanks Kevin. That makes perfect sense.Thanks Kevin. That makes perfect sense.Danhttps://www.blogger.com/profile/02202692259718746720noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-90298960625557300622010-02-21T22:53:29.462-08:002010-02-21T22:53:29.462-08:00By the acoustic measurement of the velocity of sou...By the acoustic measurement of the velocity of sound (which varies with temperature). <br /><br />Think of an upward pointing doppler radar (or sodar) coupled to a sound generator. Measurements are taken at zenith and tilted from zenith. The device can determine both wind speed and direction at given heights and with the sound generator can measure sound velocity by height which can be converted to temperature.<br /><br />Not sure which one they use at KSEW (but as the vertical range seems to be limited to 2km it might be either a 915MHz radar. It's at Sandpoint.<br /><br />http://en.wikipedia.org/wiki/Wind_profiler<br />http://www-das.uwyo.edu/~geerts/cwx/notes/chap15/profiler.html<br />http://amsglossary.allenpress.com/glossary/search?id=wind-profiler1Kevin Purcellhttps://www.blogger.com/profile/18157202870194603923noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-70343758539673965532010-02-21T20:33:08.358-08:002010-02-21T20:33:08.358-08:00Hi Cliff-
Whenever you post height vs. virtual te...Hi Cliff-<br /><br />Whenever you post height vs. virtual temp data (usually to illustrate an inversion), I notice you frequently use observations made at Sand Point. How are these measurements taken? I can't imagine they launch weather balloons under the SEATAC flight path. How does one otherwise measure the temperature at multiple elevations?<br /><br />Inquiring minds want to know.<br /><br />Cheers,<br />DanDanhttps://www.blogger.com/profile/02202692259718746720noreply@blogger.comtag:blogger.com,1999:blog-7478606652950905956.post-1665910998916769012010-02-21T19:45:51.920-08:002010-02-21T19:45:51.920-08:00I do hope your veggies grow! I spent some time ge...I do hope your veggies grow! I spent some time getting my garden ready this weekend - lots of digging and work to do. I'm a bit wary of planting too much, but the NOAA extended forecast looks positive for above average temps the next couple of months. Can I be certain? I don't want to go too crazy, then lose things...Librarianguishhttps://www.blogger.com/profile/07069303614841756239noreply@blogger.com