Satellite-derived data produced for the polar regions
نویسندگان
چکیده
منابع مشابه
Statistical downscaling of GRACE gravity satellite-derived groundwater level data
With the continued threat from climate change, population growth and followed by increasing water demand, the need for hydrological data with high spatial resolution and proper time coverage to be felt more than ago. Therefore, having data such as terrestrial water storage changes and groundwater level changes with high resolution spatial helps to plan and make decisions for water resource mana...
متن کاملCloud Cover Determination in Polar Regions from Satellite Imagery
1.0 Introduction Difficulties with Satellite Cloud Analysis in Polar Regions Objectives of this Project 1.1 1.2 Data Cloud Detection Algorithms 3.1 Classification of Clouds and Surfaces with Fuzzy Sets 3.2 Classification of Clouds and Surfaces with Neural Networks 3.3 Cloud Detection with Spatial and Temporal Coherence 3.4 Cloud Detection Following an ISCCP Methodology 4.0 Analysis of Cloud Pat...
متن کاملGravity acceleration at the sea surface derived from satellite altimetry data using harmonic splines
Gravity acceleration data have grand pursuit for marine applications. Due to environmental effects, marine gravity observations always hold a high noise level. In this paper, we propose an approach to produce marine gravity data using satellite altimetry, high-resolution geopotential models and harmonic splines. On the one hand, harmonic spline functions have great capability for local gravity ...
متن کاملOn the Use of Global Flood Forecasts and Satellite-Derived Inundation Maps for Flood Monitoring in Data-Sparse Regions
Early flood warning and real-time monitoring systems play a key role in flood risk reduction and disaster response decisions. Global-scale flood forecasting and satellite-based flood detection systems are currently operating, however their reliability for decision making applications needs to be assessed. In this study, we performed comparative evaluations of several operational global flood fo...
متن کاملSurface Emissivity Derived from Multispectral Satellite Data
Surface emissivity is critical for remote sensing of surface skin temperature and infrared cloud properties when the observed radiance is influenced by the surface radiation. It is also necessary to correctly compute the longwave flux from a surface at a given skin temperature. Surface emissivity is difficult to determine because skin temperature is an ill-defined parameter. The surface-emitted...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 1997
ISSN: 0096-3941
DOI: 10.1029/97eo00037