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Multifrequency Microwave Emission Fromthe Dome-C Area on the East Antarctic Plateau: Temporal and Spatial Variability

G. Macelloni, M. Brogioni, P. Pampaloni, A. Cagnati
2007 IEEE Transactions on Geoscience and Remote Sensing  
of this area, and the thermal stability of deeper snow layers.  ...  This area provides unique opportunities for various scientific disciplines, including glaciology and atmospheric and earth sciences.  ...  Salvietti of the University of Florence for his contribution to the collection of snow and temperature data during the winter period.  ... 
doi:10.1109/tgrs.2007.890805 fatcat:bix5rviob5gt7ba5sucgqx2vbu

Forward-Looking Assimilation of MODIS-Derived Snow-Covered Area into a Land Surface Model

Benjamin F. Zaitchik, Matthew Rodell
2009 Journal of Hydrometeorology  
Snow cover over land has a significant impact on the surface radiation budget, turbulent energy fluxes to the atmosphere, and local hydrological fluxes.  ...  For this reason, inaccuracies in the representation of snow covered area (SCA) within a land surface model (LSM) can lead to substantial errors in both offline and coupled simulations.  ...  The authors thank Dorothy Hall and George Riggs for helpful discussions on the MODIS SCA product, Sujay Kumar and Jim Geiger for assistance with LIS, and Hiroko Kato for advice on GLDAS simulations.  ... 
doi:10.1175/2008jhm1042.1 fatcat:z56p3zveabfltekiewlbt55qji

Soil Initialization Strategy for Use in Limited-Area Weather Prediction Systems

Francesca Di Giuseppe, Davide Cesari, Giovanni Bonafé
2011 Monthly Weather Review  
The second method uses the soil properties generated by a previous limited-area model forecast, allowing the soil moisture to evolve over time to a new equilibrium consistent with the regional model's  ...  Three diverse methods of initializing soil moisture and temperature in limited-area numerical weather prediction models are compared and assessed through the use of nonstandard surface observations to  ...  We are indebted to Martin Lange for providing the soil moisture analysis scheme and a series of useful comments that helped in clarifying the scope of this paper.  ... 
doi:10.1175/2011mwr3279.1 fatcat:haxufpwu7ne27kfvuav53jzzne

Mesocell Study Area Snow Distributions for the Cold Land Processes Experiment (CLPX)

Glen E. Liston, Christopher A. Hiemstra, Kelly Elder, Donald W. Cline
2008 Journal of Hydrometeorology  
The Cold Land Processes Experiment (CLPX) had a goal of describing snow-related features over a wide range of spatial and temporal scales.  ...  A SnowModel was developed and used to simulate winter snow accumulation across three 30 km ϫ 30 km domains, enveloping the CLPX mesocell study areas (MSAs) in Colorado.  ...  The authors thank Dan Birkenheuer for kindly providing the LAPS datasets. This work was supported by NASA Grants NAG5-11710, NNG04GP59G, and NNG04HK191, and NOAA Grant NA17RJ1228.  ... 
doi:10.1175/2008jhm869.1 fatcat:fjhfufoeybaglmqkofoodyv2oa

Surface soil moisture estimates from AMSR-E observations over an arid area, Northwest China

L. Wang, J. Wen, T. Zhang, Y. Zhao, H. Tian, X. Shi, X. Wang, R. Liu, J. Zhang, S. Lu
2009 Hydrology and Earth System Sciences Discussions  
Considering extremely complex topography over the study area, we present a parameterization of surface roughness at the 6.9 GHz and spatial resolution of the AMSR-E using the annual minimum MPDI (Microwave  ...  This soil moisture dataset can contribute to better understanding the climate change and forecast modeling for this area.  ...  The AMSR-E measurements used here are AMSR-E/Aqua Daily Girded Brightness Temperatures available at the National Snow and Ice Data Center (NSIDC) (Knowles, 2006) .  ... 
doi:10.5194/hessd-6-1055-2009 fatcat:mjzttvnvkbbt7gkbvpour2hpqq

Satellite-Based Snow Cover Analysis and the Snow Water Equivalent Retrieval Perspective over China [chapter]

Yubao Qiu, Huadong Guo, Jiancheng Shi, Juha Lemmetyine
2012 Remote Sensing of Planet Earth  
the climatological characteristics and time series analysis over Tibetan Plateau area and study the new snow-retrieval algorithm over China area which often experiences the shallow snow situation.  ...  According to the importance of the snow and the climate singularity aspects, in this work, we used the available snow cover area (Snow Cover Area), snow depth (Snow Water Equivalent, SWE) products to examine  ...  Acknowledgement This work is now supported by the Chinese "973" Program "Earth Observation for Sensitive www.intechopen.com References Remote Sensing of Planet Earth  ... 
doi:10.5772/32090 fatcat:bxh2jopaejbipdzk4aysicc2t4

Evaluation of snow cover and snow depth on the Qinghai–Tibetan Plateau derived from passive microwave remote sensing

Liyun Dai, Tao Che, Yongjian Ding, Xiaohua Hao
2017 The Cryosphere  
A comparison between snow depths measured in field experiments, measured at meteorological stations and estimated across the QTP shows that agreement between observation and retrieval improves with an  ...  The commission and overestimation errors of snow cover primarily occur in the northwest and southeast areas with low ground temperature.  ...  This study was supported by the National Natural Science Foundation of China (91547210, 41401414 and 41271356), the China State Key Basic Research Project (2013CBA01802) and the Chinese Academy of Sciences  ... 
doi:10.5194/tc-11-1933-2017 fatcat:hounbu6u5bgdhpfvpfd2w47uqu

Evaluation of snow cover and snow depth on the Qinghai-Tibetan Plateau derived from passive microwave remote sensing

Liyun Dai, Tao Che, Yongjian Ding, Xiaohua Hao
2016 The Cryosphere Discussions  
Comparison between snow depths measured in field experiments, measured at meteorological stations and estimated across the QTP shows that agreement between observation and retrieval improves with an increasing  ...  The commission and overestimation errors of snow cover primarily occur in the northwest and southeast areas with low ground temperature.  ...  This study was supported by the National Natural Science Foundation of China (91547210, 41401414 and 41271356), the China State Key Basic Research Project (2013CBA01802) and the Chinese Academy of Sciences  ... 
doi:10.5194/tc-2016-262 fatcat:2rrb766acjcldm33vuslxghn24

Snow depth uncertainty and its implications on satellite derived Antarctic sea ice thickness

Daniel Price, Iman Soltanzadeh, Wolfgang Rack
2018 The Cryosphere Discussions  
We compare this model to results from ECMWF ERA-Interim precipitation, EOS Aqua AMSR-E passive microwave snow depths and <i>in situ</i> measurements at the end of the sea ice growth season.  ...  The fast ice was segmented into three areas by fastening date and the onset of snow accumulation was calibrated to these dates.  ...  AMSR-E snow depths tend to follow a similar pattern over time in all freeze-up areas. For areas 2 and 3, May through June, AMSR-E and SnowModel produce similar swe values, agreeing within 0.02 m.  ... 
doi:10.5194/tc-2018-92 fatcat:4qx2rb6ljfgkvis2lrkfbcjvhe

Toward Snow Cover Estimation in Mountainous Areas Using Modern Data Assimilation Methods: A Review

Chloé Largeron, Marie Dumont, Samuel Morin, Aaron Boone, Matthieu Lafaysse, Sammy Metref, Emmanuel Cosme, Tobias Jonas, Adam Winstral, Steven A. Margulis
2020 Frontiers in Earth Science  
The snow cover is a key component of land surface hydrology, especially in mountain areas where it governs the amount and timing of water availability in downstream areas.  ...  In this paper, we review current state-of-the-art data assimilation methodologies used to optimally combine measurements with snow cover models in order to reduce uncertainties.  ...  Complementary snow cover measurements from these sites, such as snow depth and density, therefore form the basis for single-point data assimilation experiments.  ... 
doi:10.3389/feart.2020.00325 fatcat:urouzzlx5neabifjf7slzoc7wi

Snow-driven uncertainty in CryoSat-2-derived Antarctic sea ice thickness – insights from McMurdo Sound

Daniel Price, Iman Soltanzadeh, Wolfgang Rack, Ethan Dale
2019 The Cryosphere  
We compare this model to results from ECMWF ERA-Interim precipitation, EOS Aqua AMSR-E passive microwave snow depths and in situ measurements at the end of the sea ice growth season in 2011.  ...  The fast ice was segmented into three areas by fastening date and the onset of snow accumulation was calibrated to these dates.  ...  AMSR-E assuming the air-snow interface is measured T i = 0.66 m).  ... 
doi:10.5194/tc-13-1409-2019 fatcat:feznswoh4rgdpomfllf67isrym

Assimilating MODIS and AMSR-E Snow Observations in a Snow Evolution Model

Steven J. Fletcher, Glen E. Liston, Christopher A. Hiemstra, Steven D. Miller
2012 Journal of Hydrometeorology  
These schemes are used in the winter of 2006/07 over the southeast corner of Colorado and the tri-state area: Wyoming, Colorado, and Nebraska.  ...  The four schemes are 1) assimilate MODIS snow cover on its own with an arbitrary 0.01 m added to the model cells if there is a difference in snow cover; 2) iteratively change the model SWE values to match  ...  SJF is grateful for the help from  ... 
doi:10.1175/jhm-d-11-082.1 fatcat:sgktttug5nfgvf2wedstko3pgq

Hemispheric-scale comparison of monthly passive microwave snow water equivalent products

Jiuliang Liu, Zhen Li, Lei Huang, Bangsen Tian
2014 Journal of Applied Remote Sensing  
NSIDC products are more influenced by microwave "saturation," producing obvious underestimations for SWEs over 120 mm.  ...  However, the different algorithms used to produce the NSIDC and GlobSnow products lead to discrepancies in the data.  ...  Acknowledgments The authors would like to thank the anonymous reviewers for their constructive advice.  ... 
doi:10.1117/1.jrs.8.084688 fatcat:cqtn5p6lonfkhhaiukf2ibaao4

Multimodel Estimation of Snow Microwave Emission during CLPX 2003 Using Operational Parameterization of Microphysical Snow Characteristics

Rafał Wójcik, Konstantinos Andreadis, Marco Tedesco, Eric Wood, Tara Troy, Dennis Lettenmeier
2008 Journal of Hydrometeorology  
Existing forward snow emission models (SEMs) are limited by knowledge of both the temporal and spatial variability of snow microphysical parameters, with grain size being the most difficult to measure  ...  Estimated brightness temperature is validated against the satellite [Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E)] data at two sites from the Cold Land Processes Experiment  ...  EOS-era Satellites proposal) to Princeton University (Agreement NA04NES4400002) and to the University of Washington (Agreement NA04NES4400003).  ... 
doi:10.1175/2008jhm909.1 fatcat:o4ixhirovrgzvd7ian52kkrcci

Diagnostic and model dependent uncertainty of simulated Tibetan permafrost area

W. Wang, A. Rinke, J. C. Moore, X. Cui, D. Ji, Q. Li, N. Zhang, C. Wang, S. Zhang, D. M. Lawrence, A. D. McGuire, W. Zhang (+6 others)
2016 The Cryosphere  
Model evaluation at field sites highlights specific problems in process simulations likely related to soil texture specification, vegetation types and snow cover.  ...  </strong> We perform a land-surface model intercomparison to investigate how the simulation of permafrost area on the Tibetan Plateau (TP) varies among six modern stand-alone land-surface models (CLM4.5  ...  The data will be made available through the National Snow and Ice Data Center (NSIDC; http://nsidc.org); the contact person is Kevin Schaefer (kevin.schaefer@nsidc.org).  ... 
doi:10.5194/tc-10-287-2016 fatcat:vycu24l33zfjxpiwkfxwv3yope
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