Journal article - Institute for Earth Observation
Browse by
Recent Submissions
-
Daily MODIS Snow Cover Maps for the European Alps from 2002 onwards at 250 m Horizontal Resolution Along with a Nearly Cloud-Free Version
(2019)Snow cover dynamics impact a whole range of systems in mountain regions, from society to economy to ecology; and they also affect downstream regions. Monitoring and analyzing snow cover dynamics has been facilitated with ... -
Evaluating Snow in EURO-CORDEX Regional Climate Models with Observations for the European Alps: Biases and Their Relationship to Orography, Temperature, and Precipitation Mismatches
(2019)Climate models are important tools to assess current and future climate. While they have been extensively used for studying temperature and precipitation, only recently regional climate models (RCMs) arrived at horizontal ... -
An Unsupervised Method to Detect Rock Glacier Activity by Using Sentinel-1 SAR Interferometric Coherence: A Regional-Scale Study in the Eastern European Alps
(2019)Rock glaciers are widespread periglacial landforms in mountain regions like the European Alps. Depending on their ice content, they are characterized by slow downslope displacement due to permafrost creep. These landforms ... -
Improving SWE estimation by fusion of snow models with topographic and remotely sensed data
(2019)This paper presents a new concept to derive the snow water equivalent (SWE) based on the joint use of snow model (AMUNDSEN) simulation, ground data, and auxiliary products derived from remote sensing. The main objective ... -
A novel data fusion technique for snow cover retrieval
(2019)This paper presents a novel data fusion technique for improving the snow cover monitoring for a mesoscale Alpine region, in particular in those areas where two information sources disagree. The presented methodological ... -
Ecosystem Services in a Protected Mountain Range of Portugal: Satellite-Based Products for State and Trend Analysis
(2018)Mountains are facing strong environmental pressures, which may jeopardize the supply of various ecosystem services. For sustainable land management, ecosystem services and their supporting functions should thus be evaluated ... -
Soil Roughness Retrieval from TerraSar-X Data Using Neural Network and Fractal Method
(2019)The purpose of this study is to estimate the surface roughness (rms) using TerraSar-X data in HH polarization. Simulation of data is carried out at a wide range of moisture and roughness using the Integral Equation Model ... -
Review of Machine Learning Approaches for Biomass and Soil Moisture Retrievals from Remote Sensing Data
(2015)The enormous increase of remote sensing data from airborne and space-borne platforms, as well as ground measurements has directed the attention of scientists towards new and efficient retrieval methodologies. Of particular ... -
TITAN AS REVEALED BY THE CASSINI RADAR
(2019)Titan was a mostly unknown world prior to the Cassini spacecraft’s arrival in July 2004. We review the major scientific advances made by Cassini’s Titan Radar Mapper (RADAR) during 13 years of Cassini’s exploration of ... -
Estimating tree species diversity from space in an alpine conifer forest: The Rao's Q diversity index meets the spectral variation hypothesis
(2019)Forests cover about 30% of the Earth surface, they are among the most biodiverse terrestrial ecosystems and represent the bulk of many ecological processes and services. The assessment of biodiversity is an important and ... -
On the Automated Mapping of Snow Cover on Glaciers and Calculation of Snow Line Altitudes from Multi-Temporal Landsat Data
(2019)Mapping snow cover (SC) on glaciers at the end of the ablation period provides a possibility to rapidly obtain a proxy for their equilibrium line altitude (ELA) which in turn is a metric for the mass balance. Satellite ... -
A Fractal Algorithm for Surface Roughness Parameters retrieval using Multi -Band/polarization AIRSAR Data
(2019)Surface roughness is an important characteristic in analyzing SAR images and three-dimensional (3D) surfaces that influence the backscattering of electromagnetic waves. This paper proposes an algorithm based on a fractal ... -
Il progetto GreenRisk4Alps: Misure "verdi" per la gestione dei rischi naturali sulle Alpi
(2019)GreenRisk4ALPs: towards the implementation of ecosystem-based solutions for risk management in the Alps. Forests and mountain ecosystems play a crucial role in the mitigation of risks deriving from natural hazards in the ... -
Downscaling Land Surface Temperature from MODIS Dataset with Random Forest Approach over Alpine Vegetated Areas
(2019)In this study, we evaluated three different downscaling approaches to enhance spatial resolution of thermal imagery over Alpine vegetated areas. Due to the topographical and land-cover complexity and to the sparse ... -
A Methodology for Heterogeneous Sensor Data Organization and Near Real-Time Data Sharing by Adopting OGC SWE Standards
(2019)Finding a solution to collect, analyze, and share, in near real-time, data acquired by heterogeneous sensors, such as traffic, air pollution, soil moisture, or weather data, represents a great challenge. This paper describes ... -
Relationship between Spatiotemporal Variations of Climate, Snow Cover and Plant Phenology over the Alps: An Earth Observation-Based Analysis
(2018)Alpine ecosystems are particularly sensitive to climate change, and therefore it is of significant interest to understand the relationships between phenology and its seasonal drivers in mountain areas. However, no alpine-wide ... -
A Comparison of the Signal from Diverse Optical Sensors for Monitoring Alpine Grassland Dynamics
(2019)Grasslands cover up to 40% of the mountain areas globally and 23% of the European Alps and affect numerous key ecological processes. An increasing number of optical sensors offer a great opportunity to monitor and address ... -
Soil moisture estimation by SAR in Alpine fields using Gaussian Process Regressor trained by model simulations
(2017)In this paper, we address the problem of retrieving soil moisture over a grassland alpine area from Synthetic Aperture Radar (SAR) data using a statistical algorithm trained by simulations of a physical model. A time series ... -
THE SCALEX CAMPAIGN: Scale-Crossing Land Surface and Boundary Layer Processes in the TERENO-preAlpine Observatory
(AMER METEOROLOGICAL SOC, 2017)Augmenting long-term ecosystem-atmosphere observations with multidisciplinary intensive campaigns aims to close gaps in spatial and temporal scales of observation for energy and biogeochemical cycling and stimulate ... -
Altitude-dependent influence of snow cover on alpine land surface phenology
(2017)Snow cover impacts alpine land surface phenology in various ways, but our knowledge about the effect of snow cover on alpine land surface phenology is still limited. We studied this relationship in the European Alps using ...
RSS 1.0