دورية أكاديمية
A new dual-frequency stratospheric–tropospheric and meteor radar: system description and first results
العنوان: | A new dual-frequency stratospheric–tropospheric and meteor radar: system description and first results |
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المؤلفون: | Q. Xu, I. M. Reid, B. Cai, C. Adami, Z. Zhang, M. Zhao, W. Li |
المصدر: | Atmospheric Measurement Techniques, Vol 17, Pp 2957-2975 (2024) |
بيانات النشر: | Copernicus Publications, 2024. |
سنة النشر: | 2024 |
المجموعة: | LCC:Environmental engineering LCC:Earthwork. Foundations |
مصطلحات موضوعية: | Environmental engineering, TA170-171, Earthwork. Foundations, TA715-787 |
الوصف: | A new dual-frequency stratospheric–tropospheric (ST) and meteor radar has been built and installed at the Langfang Observatory in northern China. It utilizes a new two-frequency system design that allows interleaved operation at 53.8 MHz for ST mode and at 35.0 MHz for meteor mode, thus optimizing performance for both ST wind retrieval and meteor trail detection. In dedicated meteor mode, the daily meteor count rate reaches over 40 000 and allows wind estimation at finer time resolutions than the 1 h typical of most meteor radars. The root mean square uncertainty of the ST wind measurements is better than 2 m s−1 when estimating the line of best fit with radiosonde winds. Preliminary observation results for 1 month of winter gravity wave (GW) momentum fluxes in the mesosphere, lower stratosphere and troposphere are also presented. A case of waves generated by the passage of a cold front is found. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 1867-1381 1867-8548 |
Relation: | https://amt.copernicus.org/articles/17/2957/2024/amt-17-2957-2024.pdf; https://doaj.org/toc/1867-1381; https://doaj.org/toc/1867-8548 |
DOI: | 10.5194/amt-17-2957-2024 |
URL الوصول: | https://doaj.org/article/ca498a2948784026be941466eb368fa8 |
رقم الأكسشن: | edsdoj.498a2948784026be941466eb368fa8 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 18671381 18678548 |
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DOI: | 10.5194/amt-17-2957-2024 |