3,265 Hits in 11.3 sec

Clouds and Shortwave Fluxes at Nauru. Part II: Shortwave Flux Closure

Sally A. McFarlane, K. Franklin Evans
2004 Journal of the Atmospheric Sciences  
., and U. Léhnert, 2003: Accuracy of cloud liquid water path from ground-based microwave radiometery. Part 2: Sensor accuracy and synergy.  ...  JOURNAL OF THE ATMOSPHERIC SCIENCES VOLUME 61 Clouds and Shortwave Fluxes at Nauru. Part II: Shortwave Flux Closure SALLY A. MCFARLANE Pacific Northwest National Laboratory, Richland, Washington K.  ... 
doi:10.1175/jas3299.1 fatcat:fhh62cb6jne3ldbzdwi3wrhram

Classification and Characterization of Tropical Precipitation Based on High-Resolution Airborne Vertical Incidence Radar. Part II: Composite Vertical Structure of Hurricanes versus Storms over Florida and the Amazon

Bart Geerts, Yu Dawei
2004 Journal of applied meteorology (1988)  
Characteristic reflectivity, hydrometeor motion, and vertical air motion profiles of convective and stratiform precipitation are compared and related to their ice-scattering signature, with an emphasis  ...  Land-based, convectiongenerated stratiform regions tend to experience low-level descent and mid-to upper-level ascent, although the vertical velocity variability is large.  ...  We appreciate the dataprocessing support of Q. Miao, the assistance of Dr. G. Heymsfield, and the review comments of Dr. R. A. Houze.  ... 
doi:10.1175/jam2159.1 fatcat:f5cfwyzqsnezjiapapolvdf33i

The Optical/Infrared Astronomical Quality of High Atacama Sites. II. Infrared Characteristics

Riccardo Giovanelli, Jeremy Darling, Charles Henderson, William Hoffman, Don Barry, James Cordes, Stephen Eikenberry, George Gull, Luke Keller, J. D. Smith, Gordon Stacey
2001 Publications of the Astronomical Society of the Pacific  
We estimate the background for infrared observations and sensitivities for broad band and high resolution spectroscopy.  ...  A combination of radiometric and radiosonde measurements indicate that the median column of precipitable water vapor (PWV) above the plateau at an elevation of 5000 m is approximately 1.2 mm.  ...  and Scott Paine); access to 225 MHz radiometry data of NRAO (Simon Radford); Don Toma ´s Poblete Alay and the staff of La Casa de Don Toma ´s are thankfully acknowledged.  ... 
doi:10.1086/322136 fatcat:67ysr2qa2veenpa2htibvfwngm

Ground-Based Temperature and Humidity Profiling Using Spectral Infrared and Microwave Observations. Part II: Actual Retrieval Performance in Clear-Sky and Cloudy Conditions

W. G. Blumberg, D. D. Turner, U. Löhnert, S. Castleberry
2015 Journal of Applied Meteorology and Climatology  
Ground-based remote sensing instruments such as the multichannel microwave radiometer (MWR) and Atmospheric Emitted Radiance Interferometer (AERI) are able to provide profiles of temperature and water  ...  In this study, this method is duplicated using real observations from collocated MWR and AERI instruments from a field campaign in southwestern Germany.  ...  The data used in this paper were collected as part of the ARM Climate Research Facility and are available from the ARM data archive (http://www.archive.arm. gov).  ... 
doi:10.1175/jamc-d-15-0005.1 fatcat:b4c4jisd3fg55amgwhi7gkdpde

Front Matter: Volume 8528

Xiaoxiong Xiong, Haruhisa Shimoda, Changyong Cao, Xingfa Gu, A. S. Kiran Kumar, Choen Kim
2013 Earth Observing Missions and Sensors: Development, Implementation, and Characterization II  
The papers included in this volume were part of the technical conference cited on the cover and title page. Papers were selected and subject to review by the editors and conference program committee.  ...  Utilization of CIDs allows articles to be fully citable as soon as they are published online, and connects the same identifier to all online, print, and electronic versions of the publication.  ...  The L-band microwave can penetrate leaves and grasses to measure the ground directly.  ... 
doi:10.1117/12.2014547 fatcat:bmsuizfcgrfb3bnlfmyg3zz2da

MIIDAPS-AI: An Explainable Machine-Learning Algorithm for Infrared and Microwave Remote Sensing and Data Assimilation Preprocessing - Application to LEO and GEO Sensors

Eric Sean Maddy, Sid-Ahmed Boukabara
2021 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
In this paper we leverage and apply state-of-theart AI techniques to satellite remote sensing of temperature, moisture, surface, and cloud parameters in all-weather, allsurface conditions, from both microwave  ...  From microwave sensors, additional products such as rainfall rate, first year/multi-year sea ice concentration, and soil moisture can be derived from primary products.  ...  manuscript prior to publication, and Narges Shahroudi and Adam Neiss for their work in extending MIIDAPS-AI to hypothetical sensors.  ... 
doi:10.1109/jstars.2021.3104389 fatcat:dh7afoj7qnei5emb3bfz4icbza

A New Double-Moment Microphysics Parameterization for Application in Cloud and Climate Models. Part II: Single-Column Modeling of Arctic Clouds

H. Morrison, J. A. Curry, M. D. Shupe, P. Zuidema
2005 Journal of the Atmospheric Sciences  
The new double-moment microphysics scheme described in Part I of this paper is implemented into a single-column model to simulate clouds and radiation observed during the period 1 April-15 May 1998 of  ...  Sensitivity tests are also performed by varying the aerosol size, solubility, and number concentration to explore potential cloud-aerosol-radiation interactions in arctic stratus.  ...  Precipitation and rawinsonde measurements were obtained from the SHEBA Project Office at the University of Washington Applied Physics Laboratory.  ... 
doi:10.1175/jas3447.1 fatcat:ga4mk27gj5dnbj5imbqjyldwge

A New Two-Moment Bulk Stratiform Cloud Microphysics Scheme in the Community Atmosphere Model, Version 3 (CAM3). Part II: Single-Column and Global Results

A. Gettelman, H. Morrison, S. J. Ghan
2008 Journal of Climate  
The scheme produces reasonable representations of cloud particle size and number concentration when compared to observations, and it represents expected and observed spatial variations in cloud microphysical  ...  The scheme has smaller particles and higher number concentrations over land than the standard bulk microphysics in the GCM and is able to balance the top-of-atmosphere radiation budget with 60% the liquid  ...  Department of Energy Atmospheric Radiation Measurement Program, which is part of the DOE Climate Change Research Program. The Pacific Northwest National Laboratory is operated for the DOE by  ... 
doi:10.1175/2008jcli2116.1 fatcat:fqiuom7i7zcwfhezhv4jpd6mom

Characteristics of mixed-phase clouds. II: A climatology from ground-based lidar

R. J. Hogan, A. J. Illingworth, E. J. O'Connor, J. P. V. PoiaresBaptista
2003 Quarterly Journal of the Royal Meteorological Society  
radiation), and was found to compare favourably with microwave radiometer measurements of liquid water path.  ...  between −5 • C and −10 • C were found to contain significant liquid water, falling to only 6% of clouds observed between −25 • C and −30 • C.  ...  The microwave radiometer measurements of liquid water path were provided by Patrick Simpson of the Rutherford Appleton Laboratory.  ... 
doi:10.1256/qj.01.209 fatcat:rfd5jzwwavgmbpe4oepzdcrjf4

Scanning ARM Cloud Radars. Part II: Data Quality Control and Processing

Pavlos Kollias, Ieng Jo, Paloma Borque, Aleksandra Tatarevic, Katia Lamer, Nitin Bharadwaj, Kevin Widener, Karen Johnson, Eugene E. Clothiaux
2014 Journal of Atmospheric and Oceanic Technology  
The scanning Atmospheric Radiation Measurement (ARM) Program cloud radars (SACRs) are the primary instruments for documenting the four-dimensional structure and evolution of clouds within a 20-30-km radius  ...  The retrieval of the horizontal wind profile from the hemispherical sky range-height indicator SACR scan observations and/or nearest sounding is described.  ...  We would like to acknowledge the effort of the ARM infrastructure at all the fixed and mobile sites that contributed in the deployment and operation of the SACR systems. The U.S.  ... 
doi:10.1175/jtech-d-13-00045.1 fatcat:auc7m5ti3jg2tf2x5u767mydry

Soil moisture retrieval from AMSR-E

E.G. Njoku, T.J. Jackson, V. Lakshmi, T.K. Chan, S.V. Nghiem
2003 IEEE Transactions on Geoscience and Remote Sensing  
Examples of AMSR-E brightness temperature observations over land are shown from the first few months of instrument operation, indicating general features of global vegetation and soil moisture variability  ...  The AMSR-E instrument was developed by the National Space Development Agency of Japan (NASDA) and provided to the U.S. National Aeronautics and Space Administration.  ...  Vegetation and surface roughness reduce the sensitivity of the microwave observations to soil moisture.  ... 
doi:10.1109/tgrs.2002.808243 fatcat:xza553cm2bcvvht5trmtpdbtnu

Rainfall estimation using spaceborne microwave radar and radiometric measurements

2022 Mausam  
The inverse methods of retrieving rainfall from satellite microwave measurements mainly from the multiple regression and neural networks are presented based on the sensitivity analysis.  ...  The present paper deals with some of the recent remote sensing techniques for the estimation of rainfall, mainly from passive and active microwave measurements from space.  ...  The data of TRMM, SSM/I and T/P used in the study from NASA/GSFC is thankfully acknowledged. We thank unanimous reviewer for providing very good suggestions to improve the quality of the paper.  ... 
doi:10.54302/mausam.v54i1.1494 fatcat:l2lbij7nfrcj5hyq7qpx3bp5by

A Multisensor Approach Toward a Better Understanding of Snowfall Microphysics: The TOSCA Project

U. Löhnert, S. Kneifel, A. Battaglia, M. Hagen, L. Hirsch, S. Crewell
2011 Bulletin of The American Meteorological Society - (BAMS)  
A large part of the global precipitation falls as snow, and liquid precipitation is often initiated via the ice phase.  ...  The main challenges in adequately measuring snowfall are the high spatial and temporal variability as well as the enormous complexity of snow crystal habit, density, and particle size distribution (PSD  ...  We are grateful to Dr. Michael Schönhuber and Günther Lammer at Joanneum Research at the Institute of Applied Systems Technology in Graz, Austria, for providing the 2DVD instrument.  ... 
doi:10.1175/2010bams2909.1 fatcat:mvygagt5ijhn5egfgimsgyqjxu


P. A. R. Ade, R. W. Aikin, M. Amiri, D. Barkats, S. J. Benton, C. A. Bischoff, J. J. Bock, J. A. Brevik, I. Buder, E. Bullock, G. Davis, P. K. Day (+39 others)
2014 Astrophysical Journal  
After optimization of detector and readout parameters, BICEP2 achieved an instrument noise-equivalent temperature of 15.8 μK sqrt(s).  ...  BICEP2 was designed to measure the polarization of the cosmic microwave background (CMB) on angular scales of 1 to 5 degrees (ℓ=40-200), near the expected peak of the B-mode polarization signature of primordial  ...  These data were taken under conditions of low atmospheric loading during the winter of 2010 and used to select new TES bias values to improve the instrumental sensitivity.  ... 
doi:10.1088/0004-637x/792/1/62 fatcat:jmev3ym4ifejtdkqwnzuoqzqr4

Changing distributions of sea ice melt and meteoric water west of the Antarctic Peninsula

Michael P. Meredith, Sharon E. Stammerjohn, Hugh J. Venables, Hugh W. Ducklow, Douglas G. Martinson, Richard A. Iannuzzi, Melanie J. Leng, Jan Melchior van Wessem, Carleen H. Reijmer, Nicholas E. Barrand
2017 Deep-sea research. Part II, Topical studies in oceanography  
Changing distributions of sea ice melt and meteoric water west of the Antarctic Peninsula, Deep-Sea Research Part II, http://dx.  ...  Sea ice melt distributions varied from minima in 2011 of around 0 % up to maxima in 2014 of around 4-5 %.  ...  Gould for the assistance in collecting the cruise data used here, and the succession of marine assistants at Rothera Research Station for collecting isotope samples and data.  ... 
doi:10.1016/j.dsr2.2016.04.019 fatcat:khon6ffcivglhe7y66a6dwgmne
« Previous Showing results 1 — 15 out of 3,265 results