دورية أكاديمية
Forward operator for polarimetric radio occultation measurements
| العنوان: | Forward operator for polarimetric radio occultation measurements |
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| المؤلفون: | D. Hotta, K. Lonitz, S. Healy |
| المصدر: | Atmospheric Measurement Techniques, Vol 17, Pp 1075-1089 (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: | Global Navigation Satellite System (GNSS) polarimetric radio occultation (PRO) observations sense the presence of hydrometeor particles along the ray path by measuring the difference of excess phases in horizontally and vertically polarised carrier waves. As a first step towards using these observations in data assimilation and model diagnostics, a forward operator for the GNSS-PRO observable ΦDP (polarimetric differential phase shift) has been implemented by extending the existing two-dimensional forward operator for radio occultation bending-angle observations. Evaluation of heavy-precipitation cases showed that the implemented forward operator can simulate the observed ΦDP in synoptic-scale atmospheric river (AR) cases very accurately. For tropical cyclone cases it is more challenging to produce reasonable ΦDP simulations, due to the high sensitivity of ΦDP with respect to displacement of the position of the tropical cyclones. It was also found that snow is the dominant contributor to the simulated ΦDP and that the ability to compute the ray paths in two dimensions is essential to accurately simulate ΦDP. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1867-1381 1867-8548 |
| Relation: | https://amt.copernicus.org/articles/17/1075/2024/amt-17-1075-2024.pdf; https://doaj.org/toc/1867-1381; https://doaj.org/toc/1867-8548 |
| DOI: | 10.5194/amt-17-1075-2024 |
| URL الوصول: | https://doaj.org/article/53153b7854d04b44bbf13ca693bef92e |
| رقم الأكسشن: | edsdoj.53153b7854d04b44bbf13ca693bef92e |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 18671381 18678548 |
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| DOI: | 10.5194/amt-17-1075-2024 |