Search Results - "PICKETT, Herbert M"

Production of odd hydrogen in the mesosphere during the January 2005 solar proton event by Verronen, Pekka T., Seppälä, Annika, Kyrölä, Erkki, Tamminen, Johanna, Pickett, Herbert M., Turunen, Esa

“…Using measurements from the MLS/Aura and GOMOS/Envisat instruments together with a 1‐D ion and neutral chemistry model we study the changes in odd hydrogen and…”
Get full text

First results from the Spatial Heterodyne Imager for Mesospheric Radicals (SHIMMER): Diurnal variation of mesospheric hydroxyl by Englert, Christoph R., Stevens, Michael H., Siskind, David E., Harlander, John M., Roesler, Fred L., Pickett, Herbert M., von Savigny, Christian, Kochenash, Andrew J.

“…We present the first SHIMMER observations of the diurnal variation of mesospheric hydroxyl (OH). We compare our data with Aura Microwave Limb Sounder (MLS)…”
Get full text

Validation of Aura Microwave Limb Sounder OH measurements with Fourier Transform Ultra-Violet Spectrometer total OH column measurements at Table Mountain, California by Wang, Shuhui, Pickett, Herbert M., Pongetti, Thomas J., Cheung, Ross, Yung, Yuk L., Shim, Changsub, Li, Qinbin, Canty, Timothy, Salawitch, Ross J., Jucks, Kenneth W., Drouin, Brian, Sander, Stanley P.

“…The first seasonal and interannual validation of OH measurements from the Aura Microwave Limb Sounder (MLS) has been conducted using ground‐based OH column…”
Get full text

A 2.5-THz receiver front end for spaceborne applications by Gaidis, M.C., Pickett, H.M., Smith, C.D., Martin, S.C., Smith, R.P., Siegel, P.H.

“…The OH radical is an important player in known ozone depletion cycles; however, due to its location in the atmosphere, it must be studied from either a balloon…”
Get full text

A tunable cavity-locked diode laser source for terahertz photomixing by Matsuura, S., Pin Chen, Blake, G.A., Pearson, J.C., Pickett, H.M.

“…An all solid-state approach to the precise frequency synthesis and control of widely tunable terahertz radiation by differencing continuous-wave diode lasers…”
Get full text

Conformational structure, energy, and inversion rates of cyclohexane and some related oxanes by Strauss, Herbert L, Pickett, Herbert M

Get full text

Microwave studies on the structure and hydrogen bonding in 6-hydroxy-2-formylfulvene by Pickett, Herbert M

Get full text

Microwave Limb Sounder THz module on Aura by Pickett, H.M.

“…The objective of the Microwave Limb Sounder THz module on the Aura satellite is to measure stratospheric and mesospheric OH. This paper describes the optical…”
Get full text

Microwave limb sounder THz module on aura: EOS Aura Mission by PICKETT, Herbert M

Get full text

Validation of Aura Microwave Limb Sounder OH and HO2 measurements by Pickett, H. M., Drouin, B. J., Canty, T., Salawitch, R. J., Fuller, R. A., Perun, V. S., Livesey, N. J., Waters, J. W., Stachnik, R. A., Sander, S. P., Traub, W. A., Jucks, K. W., Minschwaner, K.

“…The Microwave Limb Sounder (MLS) instrument on the Aura satellite obtains global measurements of both OH and HO2 radicals. This paper describes the precision…”
Get full text

TERAHERTZ SPECTROSCOPY AND GLOBAL ANALYSIS OF THE BENDING VIBRATIONS OF ACETYLENE 12 C 2 D 2 by Yu, Shanshan, Drouin, Brian J., Pearson, John C., Pickett, Herbert M., Lattanzi, Valerio, Walters, Adam

Get full text

Spin eigenfunctions and operators for the Dn groups by Pickett, Herbert M.

“…An automated procedure for determining symmetry-adapted spin eigenfunctions is developed for the D n symmetry groups with n equivalent spins for arbitrary size…”
Get full text

Terahertz Spectroscopy and Global Analysis of the Bending Vibrations of Acetylene 12C2D2 by Yu, Shanshan, Drouin, Brian J, Pearson, John C, Pickett, Herbert M, Lattanzi, Valerio, Walters, Adam

“…Two hundred and fifty-one 12C2D2 transitions have been measured in the 0.2-1.6 THz region of its Delta 5- Delta 4 difference band and 202 of them were observed…”
Get full text

Validation of Aura MLS HOx measurements with remote-sensing balloon instruments by Pickett, H. M., Drouin, B. J., Canty, T., Kovalenko, L. J., Salawitch, R. J., Livesey, N. J., Read, W. G., Waters, J. W., Jucks, K. W., Traub, W. A.

“…Satellite measurements of OH and HO2 obtained by the Aura MLS instrument are compared to the balloon‐borne BOH and FIRS‐2 instruments. All measurements are…”
Get full text

The physical basis for absorption of light by PICKETT, HERBERT M

“…The effects of light absorption on the wave functions of gas-phase molecules and atoms are investigated by high resolution spectral measurements of radiation…”
Get full text

Measurements of 14NH3 in the ν2=1 state by a solid-state, photomixing, THz spectrometer, and a simultaneous analysis of the microwave, terahertz, and infrared transitions between the ground and ν2 inversion–rotation levels by Chen, Pin, Pearson, J.C., Pickett, Herbert M., Matsuura, Shuji, Blake, Geoffrey A.

Get full text

Measurements of 14NH 3 in the ν 2 = 1 state by a solid-state, photomixing, THz spectrometer, and a simultaneous analysis of the microwave, terahertz, and infrared transitions between the ground and ν 2 inversion–rotation levels by Chen, Pin, Pearson, J.C., Pickett, Herbert M., Matsuura, Shuji, Blake, Geoffrey A.

“…In this paper, we report 30 THz measurements of ammonia in its excited, ν 2 = 1, inversion state. These measurements include transition frequencies and…”
Get full text

Signal-to-noise ratio in Fourier transform spectrometry by Pickett, Herbert M, Strauss, Herbert L

Get full text

Characterization of a dual-mode horn for submillimeter wavelengths by Pickett, Herbert M., Hardy, John C., Farhoomand, Jam

“…A simple dual-mode conical horn has been developed and tested at 0.5 mm, 1.4 mm, 3.1 mm, and 34.2 mm. The horn has nearly equal beam shape in the E and H plane…”
Get full text

Surface current analysis of a corner cube mixer by Pickett, Herbert M., Boyd, Timothy L.

“…The surface current is described for a long wire antenna located in a corner cube. The ground plane perpendicular to the wire is found to be unimportant to the…”
Get full text