مورد إلكتروني
Mesoscale Forecast Analysis of Atmospheric Boundary Layer Structure and Electromagnetic Signal Attenuation During the Terrain-Induced Rotor Experiment (T-REX)
| العنوان: | Mesoscale Forecast Analysis of Atmospheric Boundary Layer Structure and Electromagnetic Signal Attenuation During the Terrain-Induced Rotor Experiment (T-REX) |
|---|---|
| المصدر: | DTIC |
| بيانات النشر: | 2006-11 |
| تفاصيل مُضافة: | NETWORK COMPUTING SERVICES INC ADELPHI MD ARMY HIGH PERFORMANCE RESEARCH CENTER Colon, E. Dumais, R. E. Henmi, T. Flanigan, R. |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | With the increased importance of high bandwidth microwave communication and remote sensing capabilities in Army battlefield operations, the need arises in being able to quantify the impact of microwave signal attenuation sources such as turbulence-driven fluctuations in the atmospheric refractive index and gaseous absorption. An assessment of attenuation effects in the atmospheric boundary layer was afforded by the Terrain-Induced Rotor Experiment (T-REX), which was a large-scale, observational study involving participants from several research agencies and academic institutions with the goal of examining the structure and evolution of atmospheric rotors and waves that develop over regions of complex terrain. A statistical analysis is presented in which the forecast accuracy of the Weather Research and Forecasting (WRF) Advance Research WRF (ARW) model employed by the Army Research Laboratory's Battlefield Environment Division is quantified using data collected from the Integrated Sounding System (ISS) Multiple Antenna Profiler Radar (MAPR) during T-REX Intensive Observation Periods (IOPs). It was found that vertical profiles of attenuation fields obtained from both model and observational sources were strongly correlated for gaseous absorption contributions but only a weak statistical relationship exists for scintillation contributions. This outcome suggests that mesoscale numerical weather prediction (NWP) models that are run at high spatial resolutions may potentially be used to generate forecasts that are tailored towards predicting EM attenuation effects over battlefield environments. See also ADM002075. Presented at the Army Science Conference (25th) held in Orlando, FL on 27-30 November 2006. The original document contains color images. |
| مصطلحات الفهرس: | Atmospheric Physics, Radiofrequency Wave Propagation, SCINTILLATION, ATMOSPHERIC MOTION, ATTENUATION, ELECTROMAGNETIC WAVE PROPAGATION, EARTH ATMOSPHERE, STATISTICAL ANALYSIS, FORECASTING, REFRACTIVE INDEX, SYMPOSIA, TURBULENT BOUNDARY LAYER, COMPONENT REPORTS, ABL(ATMOSPHERIC BOUNDARY LAYER), ATMOSPHERIC REFRACTIVE INDEX, ATMOSPHERIC TURBULENCE, ATTENUATION FIELDS, ELECTROMAGNETIC ATTENUATION, GASEOUS ABSORPTION, SIGNAL ATTENUATION, Text |
| URL: | |
| الإتاحة: | Open access content. Open access content Approved for public release; distribution is unlimited. |
| ملاحظة: | text/html English |
| أرقام أخرى: | DTICE ADA481618 832016547 |
| المصدر المساهم: | From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.ocn832016547 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |