Results 31 to 40 of about 2,376 (230)

Chemical observations of a polar vortex intrusion [PDF]

, 2006
An intrusion of vortex edge air into the interior of the Arctic polar vortex was observed on the 31 January 2005 flight of the NASA DC-8 aircraft. This intrusion was identified as anomalously high values of ozone by Airborne Raman Ozone, Temperature, and
Lait, L. R., Livesey, N., Waters, J., Kawa, S. R., Browell, E. V., Twigg, L., Douglass, A. R., Read, W., McGee, T. J., Froidevaux, L., Santee, M. L., Schoeberl, M. R., Pumphrey, H. C.   +12 more
core   +1 more source

Airborne Lidar observations of water vapor transport

, 2012
Water vapor, a minor constituent of the earth’s atmosphere, plays a major role in the radiation budget and the water cycle with important implications for weather and climate.
Andreas Fix, Stephan Rahm, Martin Wirth, Fix, A., Christoph Kiemle, Wirth, M., Kiemle, C., Schäfler, Andreas, Andreas Schafler   +8 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Intercomparison of Water Vapor Data Measured with Lidar during IHOP_2002. Part I: Airborne to Ground-Based Lidar Systems and Comparisons with Chilled-Mirror Hygrometer Radiosondes

, 2007
The water vapor data measured with airborne and ground-based lidar systems during the International H2O Project (IHOP_2002), which took place in the Southern Great Plains during 13 May–25 June 2002 were investigated.
Wulfmeyer, Volker, R. FERRARE, E. V. BROWELL, Ferrare, Richard, J. WANG, Ismail, Syed, S. KOOI, D. SUMMA, Schaberl, Thorsten, B. B. DEMOZ, Andreas Behrendt, Richard Ferrare, Whiteman, David N., T. SCHABERL, S. ISMAIL, DI GIROLAMO, Paolo, V. WUFMEYER, Demoz, Belay B., A. BEHRENDT, Kooi, Susan, Ehret, Gerhard, Summa, Donato, Demoz, Belay, Browell, Edward V., Kiemle, Christoph, Volker Wulfmeyer, Wang, Junhong, Behrendt, Andreas, Christoph Kiemle, Paolo Di Girolamo, D. N. WHITEMAN, Gerhard Ehret, Donato Summa, Syed Ismail, Belay B. Demoz, Bauer, Hans-Stefan, C. KIEMLE, Susan Kooi, H. S. BAUER, David N. Whiteman, Thorsten Schaberl, Junhong Wang, Browell, Edward, Girolamo, Paolo, G. EHRET, Edward V. Browell, Hans-Stefan Bauer, Whiteman, David   +47 more
core   +1 more source

Performance of Charm-F – the airborne demonstrator for Merlin

EPJ Web of Conferences, 2018
In 2015, the new airborne lidar CHARM-F for the measurement of the greenhouse gases carbon dioxide and methane was set into operation. It is an integrated path differential absorption (IPDA) lidar designed for the use onboard the German research aircraft
Amediek Axel, Ehret Gerhard, Fix Andreas, Wirth Martin, Büdenbender Christian, Quatrevalet Mathieu, Kiemle Christoph   +6 more
doaj   +1 more source

Silicon‐Embedded Multifunctional Heterogeneous Integration for Miniaturized Photoplethysmography Detection Devices

Advanced Science, EarlyView.
ABSTRACT The multifunctional integration of chips with high flexibility and scalable manufacturing is crucial for enhancing chip performance, reducing chip size, and simplifying chip design. However, balancing volume, cost, flexibility, and functionality using traditional heterogeneous integration methods is challenging.
Lang Chen, Shizun Hu, Zhou Yang, Shitao Shen, Pan Zhang, Han Xu, Chi Zhang, Wei Wang   +7 more
wiley   +1 more source

Field-deployable diode-laser-based differential absorption lidar (DIAL) for profiling water vapor [PDF]

Atmospheric Measurement Techniques, 2015
A field-deployable water vapor profiling instrument that builds on the foundation of the preceding generations of diode-laser-based differential absorption lidar (DIAL) laboratory prototypes was constructed and tested. Significant advances are discussed,
S. M. Spuler, K. S. Repasky, B. Morley, D. Moen, M. Hayman, A. R. Nehrir   +5 more
doaj   +1 more source

Towards Developing a Micropulse Differential Absorption Lidar to Measure Atmospheric Temperature [PDF]

EPJ Web of Conferences, 2020
It has generally been assumed that differential absorption lidar (DIAL) systems are incapable of measuring atmospheric temperature with useful accuracy.
Stillwell Robert A., Spuler Scott M., Hayman Matthew, Bunn Catharine E., Repasky Kevin S.   +4 more
doaj   +1 more source

TRIM: Simultaneous Thermometry, Ranging, and Imaging via a Monolithic Metalens

Advanced Science, EarlyView.
ABSTRACT While metasurfaces offer a pathway beyond the discrete architectures of conventional LWIR systems, physically fusing high‐precision thermometry and passive ranging onto a single metalens remains a formidable challenge. Here, we demonstrate a monolithic, dual‐focus metalens capable of simultaneous multidimensional sensing.
Man Yuan, Yuqing Zhang, Wangzhe Zhou, Zhaojian Zhang, Xiaoyun He, Xinpeng Jiang, Yiyi Li, Xin He, Jiagui Wu, Yuanmu Yang, Junbo Yang   +10 more
wiley   +1 more source

Intercomparison of Water Vapor Data Measured with Lidar during IHOP_2002. Part II: Airborne-to-Airborne Systems

, 2007
The dataset of the International H2O Project (IHOP_2002) gives the first opportunity for direct intercomparisons of airborne water vapor lidar systems and allows very important conclusions to be drawn for future field campaigns.
Wulfmeyer, Volker, Ferrare, Richard, Ismail, Syed, Schaberl, Thorsten, Andreas Behrendt, Richard Ferrare, Whiteman, David N., Kooi, Susan, Ehret, Gerhard, Browell, Edward V., Kiemle, Christoph, Volker Wulfmeyer, Behrendt, Andreas, Christoph Kiemle, N. Whiteman, David, Gerhard Ehret, Syed Ismail, Flamant, Cyrille, Cyrille Flamant, Bauer, Hans-Stefan, Susan Kooi, Browell, E.-V., David N. Whiteman, Thorsten Schaberl, Edward V. Browell, Hans-Stefan Bauer   +25 more
core   +1 more source