نتایج جستجو برای: sounding unit (msu). third source of ‘‘observed’’ upper

تعداد نتایج: 21233177  

Journal: :فیزیک زمین و فضا 0
محمد دارند استادیار گروه آب و هواشناسی دانشکدة منابع طبیعی، دانشگاه کردستان، ایران

radiation input from the sun is the source of energy for the earth’s climate system (hartmann, 1994). most of the solar radiation absorbed at the surface, the rest is absorbed by the atmosphere. the global temperature profile of the atmosphere reflects a balance between the radiative, convective, and dynamical heating/cooling of the surface-atmosphere system. understanding of the climate change...

2002
CARL A. MEARS MATTHIAS C. SCHABEL FRANK J. WENTZ

Over the period from 1979 to 2001, tropospheric trends derived from a widely cited analysis of the Microwave Sounding Unit (MSU) temperature record show little or no warming, while surface temperature trends based on in situ observations show a pronounced warming of ;0.2 K decade21. This discrepancy between trends at the surface and in the upper atmosphere has been a source of significant debat...

2011
Qiang Fu Syukuro Manabe Celeste M. Johanson

[1] IPCC (Intergovernmental Panel on Climate Change) AR4 (Fourth Assessment Report) GCMs (General Circulation Models) predict a tropical tropospheric warming that increases with height, reaches its maximum at ∼200 hPa, and decreases to zero near the tropical tropopause. This study examines the GCM‐predicted maximum warming in the tropical upper troposphere using satellite MSU (microwave soundin...

2009
CARL A. MEARS FRANK J. WENTZ

Measurements made by microwave sounding instruments provide a multidecadal record of atmospheric temperature in several thick atmospheric layers. Satellite measurements began in late 1978 with the launch of the first Microwave Sounding Unit (MSU) and have continued to the present via the use of measurements from the follow-on series of instruments, the Advanced Microwave Sounding Unit (AMSU). T...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...

Journal: :Journal Of Geophysical Research: Atmospheres 2023

Abstract We present a new version (v5.0) of the NOAA Center for Satellite Applications and Research (STAR) mid‐tropospheric temperature (TMT) time series. This data set uses backward‐merging approach to intercalibrate 16 satellite‐based microwave sounding records. The instrument observations included those from Microwave Sounding Unit (MSU) during 1979–2004, Advanced Unit‐A (AMSU‐A) 1998–2017, ...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1390

abstract the variables affecting the nature of reading comprehension can be classified into two general categories: reader’s variables, and text variables (alderson, 2000). despite the wave of research on vocabulary knowledge as reader’s variable, the role of this knowledge in c-test as a text-dependent test and its interaction with lexical cohesion of the test as a text feature has remained a...

2016
Dian J. Seidel Jian Li Carl Mears Isaac Moradi John Nash William J. Randel Roger Saunders David W. J. Thompson Cheng-Zhi Zou

Satellite-based layer average stratospheric temperature (T) climate data records (CDRs) now span more than three decades and so can elucidate climate variability associated with processes on multiple time scales. We intercompare and analyze available published T CDRs covering at least two decades, with a focus on Stratospheric Sounding Unit (SSU) and Microwave Sounding Unit (MSU) CDRs. Recent r...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور استان مازندران - دانشکده ریاضی 1390

abstract this thesis includes five chapter : the first chapter assign to establish fuzzy mathematics requirement and introduction of liner programming in thesis. the second chapter we introduce a multilevel linear programming problems. the third chapter we proposed interactive fuzzy programming which consists of two phases , the study termination conditions of algorithm we show a satisfac...

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