Ralf Giering
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View article: Error covariance structure caused by uncertainties in atmospheric correction for optical sensors
Error covariance structure caused by uncertainties in atmospheric correction for optical sensors Open
In satellite remote sensing of land surface Essential Climate Variables (ECVs) using optical sensors, an atmospheric correction step is typically required to convert top-of-atmosphere (TOA) bi-directional reflectances into top-of-canopy (T…
View article: Influence of Snow Redistribution and Melt Pond Schemes on Sea Ice Thickness Simulation during MOSAiC Expedition
Influence of Snow Redistribution and Melt Pond Schemes on Sea Ice Thickness Simulation during MOSAiC Expedition Open
The Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition was implemented with one year observation of atmosphere, ocean and sea ice, giving us an opportunity to understand the sea ice processes. Due to…
View article: OptiSAIL: A system for the simultaneous retrieval of soil, leaf, and canopy parameters and its application to Sentinel-3 Synergy (OLCI+SLSTR) top-of-canopy reflectances
OptiSAIL: A system for the simultaneous retrieval of soil, leaf, and canopy parameters and its application to Sentinel-3 Synergy (OLCI+SLSTR) top-of-canopy reflectances Open
This paper describes the selected algorithm for the ESA climate change initiative vegetation parameters project. Multi- and hyper-spectral, multi-angular, or multi-sensor top-of-canopy reflectance data call for an efficient generic retriev…
View article: Automatic generation of the adjoint of the StagYY mantle convection model
Automatic generation of the adjoint of the StagYY mantle convection model Open
<p>Motions within the Earth mantle and tectonics constitute a single self-organized system which is cooling the planet over its geological history. Since the end of the XXth century, models of mantle convection self-generating plate …
View article: Simultaneous Retrieval of Soil, Leaf, and Canopy Parameters from Sentinel-3 OLCI and SLSTR Multi-spectral Top-of-Canopy Reflectances
Simultaneous Retrieval of Soil, Leaf, and Canopy Parameters from Sentinel-3 OLCI and SLSTR Multi-spectral Top-of-Canopy Reflectances Open
Multi- and hyper-spectral, multi-angular top-of-canopy reflectance data call for an efficient retrieval system which can improve the retrieval of standard canopy parameters (as albedo, LAI, fAPAR), and exploit the information to retrieve a…
View article: Can We Use Satellite-Based FAPAR to Detect Drought?
Can We Use Satellite-Based FAPAR to Detect Drought? Open
Drought in Australia has widespread impacts on agriculture and ecosystems. Satellite-based Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) has great potential to monitor and assess drought impacts on vegetation greenness a…
View article: A Novel Framework to Harmonise Satellite Data Series for Climate Applications
A Novel Framework to Harmonise Satellite Data Series for Climate Applications Open
Fundamental and thematic climate data records derived from satellite observations provide unique information for climate monitoring and research. Since any satellite only operates over a relatively short period of time, creating a climate …
View article: Climate Data Records from Meteosat First Generation Part II: Retrieval of the In-Flight Visible Spectral Response
Climate Data Records from Meteosat First Generation Part II: Retrieval of the In-Flight Visible Spectral Response Open
How can the in-flight spectral response functions of a series of decades-old broad band radiometers in Space be retrieved post-flight? This question is the key to developing Climate Data Records from the Meteosat Visible and Infrared Image…
View article: Quality Assurance Framework Development Based on Six New ECV Data Products to Enhance User Confidence for Climate Applications
Quality Assurance Framework Development Based on Six New ECV Data Products to Enhance User Confidence for Climate Applications Open
Data from Earth observation (EO) satellites are increasingly used to monitor the environment, understand variability and change, inform evaluations of climate model forecasts, and manage natural resources. Policymakers are progressively re…
View article: Quality Assurance Framework Development Based on Six New ECV Data Products to Enhance User Confidence for Climate Applications
Quality Assurance Framework Development Based on Six New ECV Data Products to Enhance User Confidence for Climate Applications Open
Data from Earth Observation (EO) satellites are increasingly used to monitor the environment, understand variability and change, inform evaluations of climate model forecasts and manage natural resources. Policy makers are progressively re…
View article: Quality‐assured long‐term satellite‐based leaf area index product
Quality‐assured long‐term satellite‐based leaf area index product Open
Numerous global satellite-based leaf area index (LAI) products have been generated and widely used for a number of applications such as crop assessment in agro-meteorology or to achieve a better understanding of soil-vegetation-atmosphere …
View article: Constraining a land-surface model with multiple observations by application of the MPI-Carbon Cycle Data Assimilation System V1.0
Constraining a land-surface model with multiple observations by application of the MPI-Carbon Cycle Data Assimilation System V1.0 Open
We describe the Max Planck Institute Carbon Cycle Data Assimilation System (MPI-CCDAS) built around the tangent-linear version of the JSBACH land-surface scheme, which is part of the MPI-Earth System Model v1. The simulated phenology and n…
View article: Constraining a land surface model with multiple observations by application of the MPI-Carbon Cycle Data Assimilation System
Constraining a land surface model with multiple observations by application of the MPI-Carbon Cycle Data Assimilation System Open
We describe the Max Planck Institute Carbon Cycle Data Assimilation System (MPI-CCDAS) built around the tangent-linear version of the land surface scheme of the MPI-Earth System Model v1 (JSBACH). The simulated terrestrial biosphere proces…
View article: Creating Fidelitous Climate Data Records from Meteosat First Generation Observations
Creating Fidelitous Climate Data Records from Meteosat First Generation Observations Open
Essay on the reconstruction of the Meteosat VIS band spectral response function in the course of the FIDUCEO project. Conference paper contributed to the ESA Living Planet Symposium, Prague, May 2016:Paper 1442 - Session title: Atmosphere …