نتایج جستجو برای: snow product of modis satellite data mod10a2 in 9

تعداد نتایج: 24624683  

2003
J. Stroeve

Accurate estimation of snow albedo is essential for monitoring the state of the cryosphere. The high albedo of snow-covered surfaces allows little energy to be absorbed by the snowpack. However, as snow ages and/or begins to melt the albedo decreases and more energy is absorbed by the snowpack. This paper examines the retrieval of snow albedo from the MISR and MODIS instruments over the Greenla...

Journal: :آب و خاک 0
مرتضی اکبری احسان رعنایی حسن میرزاخان علیرضا درگاهی محمدرضا جرگه

introduction: snowmelt runoff plays an important role in providing water and agricultural resources, especially in mountainous areas. there are different methods to simulate the process of snowmelt. inter alia, degree-day model, based on temperature-index is more cited. snowmelt runoff model is a conceptual hydrological model to simulate and predict the daily flow of rivers in the mountainous b...

2006
J. Parajka

This study evaluates the Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover product over the territory of Austria. The aims are (a) to analyse the spatial and temporal variability of the MODIS snow product classes, (b) to examine the accuracy of the MODIS snow product against in situ snow depth data, and (c) to identify the main factors that may influence the MODIS classification ...

Journal: :Remote Sensing 2013
Claudia Notarnicola Martial Duguay Nico Mölg Thomas Schellenberger Anke Tetzlaff Roberto Monsorno Armin Costa Christian Steurer Marc Zebisch

The performance of a new algorithm for binary snow cover monitoring based on Moderate Resolution Imaging Spectroradiometer (MODIS) satellite images at 250 m resolution is validated using snow cover maps (SCA) based on Landsat 7 ETM+ images and in situ snow depth measurements from ground stations in selected test sites in Central Europe. The advantages of the proposed algorithm are the improved ...

2004
Xiaobing Zhou Hongjie Xie Jan M.H. Hendrickx

Using streamflow and Snowpack Telemetry (SNOTEL) measurements as constraints, the evaluation of the Moderate Resolution Imaging Spectroradiometer (MODIS) daily and 8-day snow-cover products is carried out using the Upper Rio Grande River Basin as a test site. A time series of the snow areal extent (SAE) of the Upper Rio Grande Basin is retrieved from the MODIS tile h09v05 covering the time peri...

2009
M V Georgievsky

This paper analyses an opportunity to integrate remote sensing data in a forecasting scheme of river inflow to the Krasnodar reservoir. MODIS MOD10A2 eight-day composite snow cover data was selected as the basic remote sensing information. Based on these data, a database which consists of maximal snow extent maps covering the Kuban river basin over the period from March 2000 to the present, alo...

2004
Julienne Stroeve Jason E. Box Feng Gao Shunlin Liang Anne Nolin Crystal Schaaf

The accuracy of the Moderate Resolution Imaging Spectroradiometer (MODIS) 16-day albedo product (MOD43) is assessed using ground-based albedo observations from automatic weather stations (AWS) over spatially homogeneous snow and semihomogeneous icecovered surfaces on the Greenland ice sheet. Data from 16 AWS locations, spanning the years 2000–2003, were used for this assessment. In situ reflect...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1387

the outcome of this research is a practical framework for “idea generation phase of new product development process based on customer knowledge”. in continue, the mentioned framework implemented in a part of iran n.a.b market and result in segmenting and profiling this market. also, the critical new product attributes and bases of communication message and promotion campaigns extracted. we have...

Akhoondzadeh , Mahdi , Mokhtari Dehkordi, Ramin ,

The drought can be described as a natural disaster in each region. In this study, one of the important factors in drought, vegetation, has been considered. For this purpose, monthly vegetation cover images and snow cover data of MODIS and TRMM satellite precipitation product from 2009 to 2018 were used for the study area of Iran. After initial preprocessing, we have used artificial neural netwo...

2009
Rune Solberg Regula Frauenfelder Hans Koren Kalle Kronholm

Of special interest within the field of avalanche research and avalanche warning are properties related to snow grain type and snow grain size at the surface. In continental and intermountain avalanche climates weak layers or interfaces are the main cause of avalanches. Knowledge about such weak layers helps to increase the precision of avalanche forecasting. Some of these potential weak layers...

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