Search results

Items from 1 to 20 out of 259 results

article

Improving the representation of the atmospheric boundary layer by direct assimilation of ground‐based microwave radiometer observations

Jasmin Vural, Claire Merker, Moritz Löffler, Daniel Leuenberger, more

Quarterly Journal of the Royal Meteorological Society > 150 > 759 > 1012 - 1028

In a joint effort, MeteoSwiss and Deutscher Wetterdienst (DWD) address the need for improving the initial state of the atmospheric boundary layer (ABL) by exploiting ground‐based profiling observations that aim to fill the existing observational gap in the ABL. We implemented brightness‐temperature observations from ground‐based microwave radiometers (MWRs) in our data assimilation systems using a...

article

On the analysis of a summertime convective event in a hyperarid environment

Diana Francis, Marouane Temimi, Ricardo Fonseca, Narendra R. Nelli, more

Quarterly Journal of the Royal Meteorological Society > 147 > 734 > 501 - 525

A summertime convective event that developed on 5 September 2017 over the United Arab Emirates (UAE) is investigated in this study. Atmospheric profiles from a ground‐based microwave radiometer along with satellite observations and in situ data from three weather stations in the UAE were used. The event was simulated using the Weather Research and Forecasting (WRF) model, forced with four input datasets:...

article

The Use of Linear Regression Relations Derived from Model and Experimental Data for Retrieval of the Water Content of Clouds from Ground-Based Microwave Measurements

E. Yu. Biryukov, V. S. Kostsov

Atmospheric and Oceanic Optics > 2019 > 32 > 5 > 569-577

Estimates of the error in determining the cloud liquid water path by the multiple linear regression (MLR) technique using different regression relations obtained both by model calculations and by experimental data (for reference, results of the method based on the inversion of the radiative transfer equation were taken) are presented. It is shown that if the MLR method is trained by experimental data...

article

The Alphasat Aldo Paraboni scientific and communication experiments at Ka and Q/V bands in Austria

Felix Cuervo, Antonio Martellucci, Juan Rivera Castro, Michael Schmidt, more

International Journal of Satellite Communications and Networking > 37 > 5 > 437 - 448

The use of higher frequencies for satellite multimedia communication systems calls for research of the atmospheric propagation effects at these bands (rain, cloud and gaseous attenuation, scintillation, and depolarization). Alphasat was successfully launched on 25 July 2013. This largest and most powerful European telecommunication satellite carries, besides a commercial payload belonging to the mobile...

article

Study on the north-east monsoon onset features using a ground-based microwave radiometer over SHAR

R Pushpa Saroja, M Rajasekhar, G Papa Rao, S Rambabu, more

Journal of Earth System Science > 2019 > 128 > 8 > 1-16

Convection has a significant role in maintaining the atmospheric dynamics and thermodynamics; particularly in the tropical regions, it can often lead to the formation of clouds and precipitation, release of latent heat, etc. Microwave radiometers (MWRs) have evolved as a powerful tool for monitoring the genesis and evolution of the convection over a site. Ground-based MWRs are installed at the Satish...

article

Verification and recalibration of HY-2A microwave radiometer brightness temperature

Yili Zhao, Huimin Li, Chuntao Chen, Jianhua Zhu

Journal of Oceanology and Limnology > 2019 > 37 > 3 > 968-981

HY-2A is the first one of the Chinese HY-2 ocean satellite series carrying a microwave radiometer (RM) to measure sea surface temperature, sea surface wind speed, atmospheric water vapor, cloud liquid water content, and rain rate. We verified the RM level 1B brightness temperature (T_B) to retrieve environmental parameters. In the verification, T_B that simulated using the ocean-atmosphere radiative...

article

A High-Order L-Band HTS Filter for Sensitive Detecting

L. T. Wang, Y. Xiong, Y. H. Xiao, J. Y. Liu, more

Journal of Superconductivity and Novel Magnetism > 2019 > 32 > 9 > 2849-2856

In this paper, a new high-temperature superconducting (HTS)-based microwave radiometer with an improved sensitivity is presented. The cryogenic receiver front end consists of an HTS filter and a cryogenic low noise amplifier (LNA). The cryogenic receiver front end shows an ultra-low noise figure and can suppress radio frequency interference (RFI) effectively. The proposed HTS filter works at a center...

article

Diurnal Variation of the Lower Tropospheric Water Vapor Observed Using Microwave Radiometer Over Darjeeling (27.05°N, 88.26°E)

Shyam Mehta, Soumendra Singh, Amitabha Mitra, Sanjay K. Ghosh, more

Journal of the Indian Society of Remote Sensing > 2019 > 47 > 4 > 619-628

In this paper, diurnal variation in tropospheric water vapor is studied using two instruments, namely water vapor (WV) radiometer (WVR-1100) and micro rain radar (MRR-2). It is observed that the WV and RH are maximum during wet hours while minimum during dry hours. The mean diurnal variation of WV shows greater value in the wet period due to high evaporation and convection rates. In addition, frequent...

article

Estimation of the liquid water content and Z–LWC relationship using Ka‐band cloud radar and a microwave radiometer

Su‐Bin Oh, Yong Hee Lee, Jong‐Hoon Jeong, Yeon‐Hee Kim, more

Meteorological Applications > 25 > 3 > 423 - 434

Cloud microphysical variables are needed to evaluate and improve cloud parameterization and data assimilation in a numerical weather model. In order to obtain high spatiotemporal resolution data for the cloud, data from the Ka‐band cloud radar (KaCR), an instrument specialized for cloud observation, were used. In this study, the liquid water content (LWC) was estimated, and the reflectivity–liquid...

article

Cosmos-243 as the Starting Point for the Development of Microwave Radiometry Methods of the Earth’s Atmosphere and Surface

M. E. Gorbunov, B. G. Kutuza

Izvestiya, Atmospheric and Oceanic Physics > 2018 > 54 > 3 > 275-281

On September 23, 1968, the Cosmos-243 satellite was launched into orbit with four radio telescopes directed to the nadir on board. They were designed to measure the microwave radiation of the Earth’s surface and its atmosphere at wavelengths of 0.8, 1.35, 3.4, and 8.5 cm. The onboard infrared radiometer measured radiation in the band of 10–11 µm in the same solid angle as the radio telescopes. This...

article

Thermal Structure of a Coastal–Urban Boundary Layer

David Melecio-Vázquez, Prathap Ramamurthy, Mark Arend, Jorge E. González-Cruz

Boundary-Layer Meteorology > 2018 > 169 > 1 > 151-161

We use various temperature profilers located in and around New York City to observe the structure and evolution of the thermal boundary layer. The primary focus is to highlight the spatial variability of potential-temperature profiles due to heterogeneous surface forcing in an urban environment during different flow conditions. Overall, the observations during the summer period reveal the presence...

article

Estimation of wind speeds inside Super Typhoon Nepartak from AMSR2 low-frequency brightness temperatures

Lei Zhang, Xiaobin Yin, Hanqing Shi, Zhenzhan Wang, more

Frontiers of Earth Science > 2019 > 13 > 1 > 124-131

Accurate estimations of typhoon-level winds are highly desired over the western Pacific Ocean. A wind speed retrieval algorithm is used to retrieve the wind speeds within Super Typhoon Nepartak (2016) using 6.9- and 10.7-GHz brightness temperatures from the Japanese Advanced Microwave Scanning Radiometer 2 (AMSR2) sensor on board the Global Change Observation Mission-Water 1 (GCOM-W1) satellite. The...

article

Characteristics of cloud occurrence using ceilometer measurements and its relationship to precipitation over Seoul

Sanghee Lee, Seung-On Hwang, Jhoon Kim, Myoung-Hwan Ahn

Atmospheric Research > 2018 > 201 > C > 46-57

Clouds are an important component of the atmosphere that affects both climate and weather, however, their contributions can be very difficult to determine. Ceilometer measurements can provide high resolution information on atmospheric conditions such as cloud base height (CBH) and vertical frequency of cloud occurrence (CVF). This study presents the first comprehensive analysis of CBH and CVF derived...

article

Total column water vapor estimation over land using radiometer data from SAC-D/Aquarius

Javier Epeloa, Amalia Meza

Advances in Space Research > 2018 > 61 > 4 > 1025-1034

The aim of this study is retrieving atmospheric total column water vapor (CWV) over land surfaces using a microwave radiometer (MWR) onboard the Scientific Argentine Satellite (SAC-D/Aquarius). To research this goal, a statistical algorithm is used for the purpose of filtering the study region according to the climate type.A log-linear relationship between the brightness temperatures of the MWR and...

article

Estimating surface soil moisture from SMAP observations using a Neural Network technique

J. Kolassa, R.H. Reichle, Q. Liu, S.H. Alemohammad, more

Remote Sensing of Environment > 2018 > 204 > C > 43-59

A Neural Network (NN) algorithm was developed to estimate global surface soil moisture for April 2015 to March 2017 with a 2–3day repeat frequency using passive microwave observations from the Soil Moisture Active Passive (SMAP) satellite, surface soil temperatures from the NASA Goddard Earth Observing System Model version 5 (GEOS-5) land modeling system, and Moderate Resolution Imaging Spectroradiometer-based...

article

A random forest algorithm for nowcasting of intense precipitation events

Saurabh Das, Rohit Chakraborty, Animesh Maitra

Advances in Space Research > 2017 > 60 > 6 > 1271-1282

Automatic nowcasting of convective initiation and thunderstorms has potential applications in several sectors including aviation planning and disaster management. In this paper, random forest based machine learning algorithm is tested for nowcasting of convective rain with a ground based radiometer. Brightness temperatures measured at 14 frequencies (7 frequencies in 22–31GHz band and 7 frequencies...

article

Soil Moisture Active/Passive L-Band Microwave Radiometer Postlaunch Calibration

Jinzheng Peng, Sidharth Misra, Jeffrey R. Piepmeier, Emmanuel P. Dinnat, more

IEEE Transactions on Geoscience and Remote Sensing > 2017 > 55 > 9 > 5339 - 5354

The Soil Moisture Active/Passive (SMAP) microwave radiometer is a fully polarimetric L-band radiometer flown on the SMAP satellite in a 6 a.m./6 p.m. sun-synchronous orbit at 685-km altitude. Since April 2015, the radiometer has been under calibration and validation to assess the quality of the radiometer L1B data product. Calibration methods, including the SMAP L1B TA2TB [from antenna temperature...

article

Evaluation of Marine Surface Wind Speed Observations From AMSR2 on GCOM-W Satellite

Naoto Ebuchi

IEEE Journal of Selected Topics in Applied Earth Observations and Remote... > 2017 > 10 > 9 > 3955 - 3962

Observations of marine surface scalar wind speeds from the advanced microwave scanning radiometer 2 (AMSR2), onboard the global change observation mission-water satellite (GCOM-W), were evaluated by comparisons with offshore moored buoy measurements, output from the European Centre for Medium Range Weather Forecast Reanalysis Interim, and observations by the RapidScat (RSCAT) scatterometer onboard...

chapter

A study on detecting water vapor profile using ground based microwave radiometer and cloud radar

Yili Zhao, Yubao Chen, Bai Li, Chuntao Chen, more

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) > 4673 - 4676

IGARSS 2017 - 2017 IEEE International Geoscience and Remote Sensing Symposium

This paper presents a case study on measuring water vapor profile using a combination of ground-based microwave radiometer and cloud radar. The correlation of water vapor density measured by radiosonde and twelve brightness temperatures observed by microwave radiometer were analyzed to select appropriate channels for retrieving water vapor density. Then, a retrieval algorithms of water vapor density...

chapter

Rigorous radiative tarnsfer simulation for ATMS 183 GHz with atmospheric water signature from combined radar and radiometer of GPM

John Xun Yang, Hu Yang, Fuzhong Weng

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) > 2133 - 2136

IGARSS 2017 - 2017 IEEE International Geoscience and Remote Sensing Symposium

Spaceborne radiometers have provided critical information of atmospheric water vapor and precipitation through sounding channels around 183 GHz. Understanding the performance and characteristics of these channels is important for hardware assessment, refining radiative transfer model, and improving science product. Whereas atmospheric water profiles from ancillary operational or reanalysis data are...

Publication date

Last year (1)
Last 3 years (1)

Close

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

From:

To:
Set your own date range

Content availability

Available (251)
None (8)

Publication type

book (142)
article (117)

Publication language

English (257)
Polish (2)

Keywords

MICROWAVE RADIOMETER (259)
MICROWAVE RADIOMETRY (102)
RADIOMETRY (61)
RADIOMETERS (58)
REMOTE SENSING (53)
BRIGHTNESS TEMPERATURE (48)
CALIBRATION (47)
OCEAN TEMPERATURE (34)
SATELLITES (26)
MICROWAVE MEASUREMENT (25)
SATELLITE BROADCASTING (22)
TEMPERATURE MEASUREMENT (22)
INSTRUMENTS (20)
MICROWAVE MEASUREMENTS (20)
SEA MEASUREMENTS (20)
ATMOSPHERIC TECHNIQUES (18)
SEA SURFACE (18)
RAIN (15)
GEOPHYSICAL TECHNIQUES (14)
MICROWAVE IMAGING (14)
ATMOSPHERIC MEASUREMENTS (13)
MICROWAVE THEORY AND TECHNIQUES (13)
ATMOSPHERIC HUMIDITY (12)
ATMOSPHERIC MODELING (12)
NOISE (12)
SOIL MOISTURE (12)
WIND (12)
WIND SPEED (12)
ANTENNA MEASUREMENTS (11)
ANTENNAS (11)
SOIL (11)
AMSR-E (10)
AQUARIUS (10)
EARTH (10)
EXTRATERRESTRIAL MEASUREMENTS (10)
GEOPHYSICAL EQUIPMENT (10)
GEOPHYSICAL SIGNAL PROCESSING (10)
MICROWAVE ANTENNAS (10)
REMOTE SENSING BY RADAR (9)
ATMOSPHERIC PRECIPITATION (8)
CLOUDS (8)
DATA ASSIMILATION (8)
L-BAND (8)
MICROWAVE DETECTORS (8)
OCEANOGRAPHIC TECHNIQUES (8)
RADIATIVE TRANSFER (8)
RADIOMETER (8)
SENSITIVITY (8)
VALIDATION (8)
WATER VAPOR (8)
ACCURACY (7)
METEOROLOGY (7)
MICROWAVE INTEGRATED CIRCUITS (7)
OCEANS (7)
PRECIPITATION (7)
RADIOFREQUENCY INTERFERENCE (7)
RECEIVERS (7)
SEA SURFACE SALINITY (7)
SEA SURFACE TEMPERATURE (7)
SPACEBORNE RADAR (7)
SPATIAL RESOLUTION (7)
TEMPERATURE SENSORS (7)
WINDSAT (7)
ATMOSPHERE (6)
ATMOSPHERIC TEMPERATURE (6)
IMAGE RECONSTRUCTION (6)
LAND SURFACE (6)
MICROWAVE FET INTEGRATED CIRCUITS (6)
MICROWAVE SENSORS (6)
RADIO FREQUENCY INTERFERENCE (6)
SNOW (6)
ADVANCED MICROWAVE SCANNING RADIOMETER (5)
APERTURE SYNTHESIS (5)
ARRAYS (5)
ATMOSPHERIC BOUNDARY LAYER (5)
ATMOSPHERIC MEASURING APPARATUS (5)
ATMOSPHERIC WATER VAPOR (5)
CLOUD LIQUID WATER (5)
EARTH OBSERVING SYSTEM (5)
HYDROLOGICAL TECHNIQUES (5)
MICROWAVE REMOTE SENSING (5)
RADIOMETER CALIBRATION (5)
SENSORS (5)
TEMPERATURE DISTRIBUTION (5)
AIRBORNE RADAR (4)
ANTENNA RADIATION PATTERNS (4)
APERTURES (4)
ARTIFICIAL SATELLITES (4)
BRIGHTNESS (4)
BRIGHTNESS TEMPERATURES (4)
CHINA (4)
DETECTION ALGORITHMS (4)
DETECTORS (4)
ELECTROMAGNETIC HEATING (4)
EMISSIVITY (4)
GLOBAL POSITIONING SYSTEM (4)
INDEXES (4)
INFRARED RADIOMETER (4)
INTERFERENCE (4)
INTERFERENCE SUPPRESSION (4)
more

Data set

ieee (188)
Springer (34)
Elsevier (24)
Wiley (11)
BazTech (2)

INFONA - science communication portal

Search results

Improving the representation of the atmospheric boundary layer by direct assimilation of ground‐based microwave radiometer observations

On the analysis of a summertime convective event in a hyperarid environment

The Use of Linear Regression Relations Derived from Model and Experimental Data for Retrieval of the Water Content of Clouds from Ground-Based Microwave Measurements

The Alphasat Aldo Paraboni scientific and communication experiments at Ka and Q/V bands in Austria

Study on the north-east monsoon onset features using a ground-based microwave radiometer over SHAR

Verification and recalibration of HY-2A microwave radiometer brightness temperature

A High-Order L-Band HTS Filter for Sensitive Detecting

Diurnal Variation of the Lower Tropospheric Water Vapor Observed Using Microwave Radiometer Over Darjeeling (27.05°N, 88.26°E)

Estimation of the liquid water content and Z–LWC relationship using Ka‐band cloud radar and a microwave radiometer

Cosmos-243 as the Starting Point for the Development of Microwave Radiometry Methods of the Earth’s Atmosphere and Surface

Thermal Structure of a Coastal–Urban Boundary Layer

Estimation of wind speeds inside Super Typhoon Nepartak from AMSR2 low-frequency brightness temperatures

Characteristics of cloud occurrence using ceilometer measurements and its relationship to precipitation over Seoul

Total column water vapor estimation over land using radiometer data from SAC-D/Aquarius

Estimating surface soil moisture from SMAP observations using a Neural Network technique

A random forest algorithm for nowcasting of intense precipitation events

Soil Moisture Active/Passive L-Band Microwave Radiometer Postlaunch Calibration

Evaluation of Marine Surface Wind Speed Observations From AMSR2 on GCOM-W Satellite

A study on detecting water vapor profile using ground based microwave radiometer and cloud radar

Rigorous radiative tarnsfer simulation for ATMS 183 GHz with atmospheric water signature from combined radar and radiometer of GPM

Filter options

Publication date

Content availability

Publication type

Publication language

Keywords

Data set

INFONA - science communication portal

Search results

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Content availability

Publication type

Publication language

Keywords

Data set

Reporting an error / abuse

Sending the report failed

Accessibility options