Franz Schreier

Recent Advances in SCIAMACHY Near Infrared Nadir Level 2 Algorithm Development (2006)

The efficient evaluation of numerous values of functions that vary rapidly only in a small part of the region of interest is presented. An optimized algorithm using a sequence of grids with...

Schreier, Franz, Hess, Michael, Doicu, Adrian, Schroeder, Thomas, Bargen Von, Albrecht

Profile Retrieval from MetOp Nadir Sounders: Inversion by Tikhonov Regularization and Verification Methodology (2006)

Schreier, Franz, Doicu, Adrian, Schwarz, Gottfried, Böckmann, Christine

An advanced mathematical methodology for efficient Tikhonov-type inversion of MetOp nadir sounder observations is proposed. Key issues such as optimal regularization matrix and parameter selection,...

Remote Sensing of Venus' atmosphere during the June 2004 transit (2006)

Hedelt, Pascal Andre, Rauer, Heike, Titz, Ruth, Schreier, Franz, Brown, Timothy, Schmidt, Wolfgang, ...

Using data from the Venus-Sun transit on 8th of June 2004, one can make estimates about the feasability of making positive spectral detections of biomarkers in extrasolar planet atmospheres. During...

Retrieval of Molecular Line Parameters from High Resolution Fourier Transform Laboratory Spectra in Support of Atmospheric Spectroscopy (2006)

Badaoui, Mohammed, Schreier, Franz, Wagner, Georg, Birk, Manfred

Simulation of Infrared Radiation from Biomass Fires and Retrieval of Smoke Particles Parameter (2006)

Beier, Kurt, Fuchs, Peter, Schimpf, Birger, Schreier, Franz

Simulation of Infrared Radiation from Fires and Retrieval of Smoke Particle Parameters (2006)

Beier, Kurt, Fuchs, Peter, Schimpf, Birger, Schreier, Franz

Remote Sensing of Venus' atmosphere during the June 2004 transit (2006)

Hedelt, Pascal Andre, Rauer, Heike, Titz, Ruth, Schreier, Franz, Brown, Timothy, Schmidt, Wolfgang, ...

Using data from the Venus-Sun transit on 8th of June 2004, one can make estimates about the feasability of making positive spectral detections of biomarkers in extrasolar planet atmospheres. During...

An ILS for line parameters measurements in high resolved spectra recorded by FTS for atmospheric remote sensing purposes (2006)

Badaoui, Mohammed, Schreier, Franz, Wagner, Georg, Birk, Manfred

This communication presents a method that performs a nonlinear least-squares-fitting procedure that adjusts a modeled transmittance lines to match the observed spectrum taking into account a...

Investigations of innovative algorithms for quantitative high temperature event (fires, volcano eruptions, etc.) emission analysis applying infrared spectrum and image data fusion (2006)

Tank, Volker, Beier, Kurt, Hess, Michael, Lindermeir, Erwin, Lorenz, Eckehard, Schreier, Franz, ...

High Temperature Events (HTEs) like vegetation fires, peat/coal seam burning, and active volcanoes emit large quantities of radiative active gases and aerosols into the atmosphere. Quantification of...

The Major Revisions of the Operational SCIAMACHY Level 1b-2 Off-line Data Processor (2006)

Von Bargen, Albrecht, Kretschel, Klaus, Doicu, Adrian, Hess, Michael, Schreier, Franz, Schröder, Thomas, ...

Der Konferenzbeitrag beschreibt den Update des operationellen SCIAMACHY Level 1b-2 Off-line Prozessors im Hinblick auf seine Algorithmen. Im Vordergrund stand die Integration des SDOAS Algorithmus...

Finite element method for the two-dimensional atmospheric radiative transfer (2005)

Doicu, Adrian, Trautmann, Thomas, Schreier, Franz, Hess, Michael

The finite element method is applied to the solution of the two-dimensional atmospheric radiative transfer. The analysis is mainly focussed on the derivation of the cell or element equation. The...

Intercomparison of general purpose clear sky atmospheric radiative transfer models for the millimeter/submillimeter spectral range (2005)

Melsheimer, Christian, Verdes, Carmen, Buehler, Stefan, Emde, Claudia, Eriksson, Patrick, Feist, Dietrich, ...

We compare a number of radiative transfer models for atmospheric sounding in the millimeter and submillimeter wavelength range, check their consistency, and investigate their deviations from each...

Multi-parameter regularization method for atmospheric remote sensing (2005)

Doicu, Adrian, Schreier, Franz, Hilgers, Siegfried, Hess, Michael

The iteratively regularized Gauss-Newton algorithm with simple bounds on the variables is extended to the multi-parameter case. The global regularization matrix is computed by using the L-curve...

An iterative regularization method with B-spline approximation for atmospheric temperature and concentration retrievals (2005)

Remote Detection and Quantification of Hot Combustion Products - Experimental Instrumentation and Determination of Optimal Infrared Spectral Micro Windows (2005)

A retrieval algorithm using B-spline approximation for solving ill-posed inverse problems arising in atmospheric remote sensing is presented. The nonlinear ill-posed inversion is achieved by means of...

Tank, Volker, Hess, Michael, Schreier, Franz, Lindermeir, Erwin

Aiming at quantitative investigations of molecular combustion products released from high temperature events (HTE) such as forest fires, volcano eruptions, etc., HTE infrared emission spectra and...

The 2003 edition of the GEISA/IASI spectroscopic database (2005)

Jacquinet-Husson, N., Scott, N.A., Chédin, A., Garceran, K., Armante, R., Chursin, A.A., ...

The content of the current 2003 version, GEISA/IASI-03, of the computer-accessible spectroscopic database, GEISA (Gestion et Etude des Informations Spectroscopiques Atmosphériques: Management and...

Hochauflösende Infrarot-Modelle im Virtuellen Strahlungstransfer-Labor (2004)

Schreier, Franz, Mendrok, Jana, Böttger, Ute

Die Modellierung des Strahlungstransports im Ultraviolett-, Infrarot- und Mikrowellen-Spektralbereich (UV-IR-MW) ist eine wesentiche Komponente der Fernerkundung der Atmosphäre. Die höhere...

Iterative regularization methods for atmospheric remote sensing (2004)

Spectral Grid Optimization Scheme for Line-by-Line Cross Section Evaluation (2004)

In this paper we present different inversion algorithms for nonlinear ill-posed problems arising in atmosphere remote sensing. The proposed methods are Landweber's method (LwM), the iteratively...

Erweiterung und Verbesserung der Level 2 Datenprodukte von MIPAS (Abschlussbericht HGF Vernetzungsfond) (2004)

Schreier, Franz, Doicu, Adrian

Informationsgehalt von IR-Bildsensor und FTIR-Messungen zur Bestimmung von CO2 und CO Säulen über Vegetationsfeuern (2004)

Hess, Michael, Schreier, Franz, Doicu, Adrian

Nadirmessungen mit einem FTIR Spektrometer vom Flugzeug oder vom Weltraum aus setzen ein grosses Gesichtsfeld des Gerätes voraus, um ein ausreichendes Signal-Rausch-Verhältnis zu erreichen. Der...

Remote Detection and Quantification of Hot Combustion Products - Experimental Instrumentation and Determination of Optimal Infrared Spectral Micro Windows (2004)

Tank, Volker, Hess, Michael, Schreier, Franz, Lindermeir, Erwin

Aiming at quantitative investigations of molecular combustion products released from high temperature events (HTE) such as forest fires, volcano eruptions, etc., HTE infrared emission spectra and...

DLR's VirtualLAB: Scientific Software Just A Mouse Click Away (2003)

Ernst, Thilo, Rother, Tom, Schreier, Franz, Wauer, Jochen, Balzer, Wolfgang

Modelling of atmospheric mid-infrared radiative transfer:the AMIL2DA algorithm intercomparison experiment (2003)

Clarmann Von, Thomas, Hoepfner, Michael, Funke, Bernd, Lopez-Puertas, Manuel, Dudhia, Anu, Jay, Victoria, ...

When retrieving atmospheric parameters from radiance spectra, the forward modelling of radiative transfer through the Earth's atmosphere plays a key role, since inappropriate modelling directly maps...

The Virtual Lab for Light Scattering Analysis and Radiative Transfer (2003)

Rother, Tom, Ernst, Thilo, Wauer, Jochen, Schreier, Franz, Böttger, Ute, Schmidt, Karsten

Iteratively Regularized Gauss-Newton Method for Bound-Constraint Problems in Atmospheric Remote Sensing (2003)

MIRART, a line-by-line code for infrared atmospheric radiation computations incl. derivatives (2003)

In this paper two algorithms for the solution of nonlinear ill-posed problems with simple bounds on the variables are presented. The proposed algorithms are bound-constraint versions of the...

Schreier, Franz, Böttger, Ute

A suite of programs MIRART (Modular InfraRed Atmospheric Radiative Transfer) for high resolution infrared atmospheric radiative transfer calculations has been developed with emphasis on efficient and...

Spectroscopic parameters for ozone and its isotopes: recent measurements, outstanding issues, and prospects for improvements to HITRAN (2003)

Rinsland, Curtis, Flaud, Jean Marie, Perrin, Agnes, Birk, Manfred, Wagner, Georg, Goldman, Aaron, ...

Iteratively regularized Gauss-Newton methods for quadratic and bound constraint problems in atmospheric remote sensing (2003)

Advanced MIPAS-Level-2 Data Analysis (AMIL2DA) (2003)

Clarmann Von, Thomas, Birk, Manfred, Bovensmann, Heinrich, Bracher, Astrid, Burgess, Alastair, Cecherini, Simone, ...

The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), which is a core instrument of the Envisat polar platform launched on 1 March 2002 by the European Space Agency (ESA), is a...

Implementation of Weighting Functions in MIRART - Problems and Solutions (2003)

Advanced MIPAS level-2 Data Analysis (AMIL2DA) (2003)

Clarmann Von, Thomas, Birk, Manfred, Bovensmann, Heinrich, Burgess, Alastair, Ceccherini, Simone, Doicu, Adrian, ...

AMIL2DA - Advanced MIPAS level 2 Data Analysis (2003)

Clarmann Von, Thomas, Birk, Manfred, Bovensmann, Heinrich, Bracher, Astrid, Burgess, Alastair, Ceccherini, Simone, ...

A blind test retrieval experiment for infrared limb emission spectrometry (2003)

Clarmann Von, Thomas, Ceccherini, Simone, Doicu, Adrian, Dudhia, Anu, Funke, Bernd, Grabowski, U., ...

The functionality and characteristics of six different data processors (i.e., retrieval codes in their actual software and hardware environment) for analysis of high-resolution limb emission infrared...

Analyse von Hochtemperatur-Ereignissen (2003)

Line-by-Line Infrared Atmospheric Radiation code MIRAT - Numerical and Computational Aspects (2002)

Schreier, Franz, Böttger, Ute

A suite of programs MIRART (Modular InfraRed Atmospheric Radiance and Trans- mission) for high resolution infrared atmospheric radiative transfer calculations has been developed with emphasis on...

Iteratively Regularized Gauss--Newton Method for Atmospheric Remote Sensing (2002)

Spectroscopic database for ozone in the fundamental spectral regions (2002)

In this paper we present an inversion algorithm for nonlinear ill--posed problems arising in atmospheric remote sensing. The proposed method is the iteratively regularized Gauss--Newton method. The...

Wagner, Georg, Birk, Manfred, Schreier, Franz, Flaud, Jean Marie

High resolution Fourier transform infrared measurements of the three ozone fundamentals have been performed. A total of 16 spectra have been recorded, including pure as well as oxygen and nitrogen...

Advanced MIPAS Level 2 Data Analysis (AMIL2DA) (2002)

Clarmann Von, Thomas, Ceccherini, Simone, Doicu, Adrian, Dudhia, Anu, Funke, Bernd, Grabowski, U., ...

Es wird eine Beschreibung des EU-Projekts AMIL2DA gegeben.

HTE temperature and gas profile retrieval from combined IR imaging and spectrometer measurements (2002)

Hess, Michael, Zhukov, Boris, Beier, Kurt, Schreier, Franz, Doicu, Adrian, Oertel, Dieter

Fourier Transform Spectrometers (FTS) with a high spectral resolution principally allow the retrieval of heigth resolved profiles of temperature and trace gas concentrations. However, they need a...

FOCUS Data Fusion Algorithm Development - Final Report (2002)

Schreier, Franz, Beier, Kurt, Hess, Michael, Tank, Volker, Zhukov, Boris

FOCUS Data Fusion Algorithm Development - Algorithm Theoretical Basis Document (2002)

Schreier, Franz, Beier, Kurt, Hess, Michael, Tank, Volker, Zhukov, Boris, Oertel, Dieter

High Resolution Infrared Laboratory Spectroscopy of Atmospheric Constituents at DLR (2001)

Birk, Manfred, Hausamann, Dieter, Schreier, Franz, Wagner, Georg

High Resolution IR lab spectroscopy of atmospheric constituents at DLR, Poster (2001)

Birk, Manfred, Hausamann, Dieter, Schreier, Franz, Wagner, Georg

TeraHertz OH Measurement Atmospheric Sounder (THOMAS), Poster (2001)

Mair, Ulrich, Krocka, Michail, Engler, Ch., Birk, Manfred, Titz, R., Bochter, Kurt, ...

Advanced MIPAS Level 2 Data Processing (AMIL2DA) (2001)

Clarmann Von, Thomas, Hilgers, Siegfried, Schreier, Franz, Schwarz, Gottfried

First results of the AMIL2DA project show that various processors available for the retrieval of special constituents from MIPAS data deliver comparable results. Remaing differences are mainly due to...

Spectroscopic Measurements from Space with the FOCUS Sensor System to analyse Gas and Smoke Properties of high Temperature Events (2001)

Tank, Volker, Haschberger, Peter, Bochter, Kurt, Oertel, Dieter, Beier, Kurt, Schreier, Franz, ...

Operated on the International Space Station ISS the FOCUS sensor system will autonomously detect and analyse high temperature events like forest and bush fires, volcano eruptions or coal seam fires....

Simulation of Infrared Radiation from Biomass Fires and Retrieval of Smoke Particle Parameters (2001)

Beier, Kurt, Fuchs, Peter, Schimpf, Birger, Schreier, Franz

The intelligent infrared sensor system FOCUS to be flown on the International Space Station is a unique combination of imagers and a spectrometer dedicated to demonstrate the feasibility of...

FOCUS on ISS-Sensor and Data Fusion for Earth Observation from Space (2001)

Tank, Volker, Oertel, Dieter, Zhukov, Boris, Schreier, Franz, Beier, Kurt, Haschberger, Peter, ...

Earth observation systems from space platforms in general employ remote sensing instruments of a specific type (imaging, spectrometric, etc.) in a specific spectral band (visible, infrared,...

The 2.5 THz Heterodyne Spectrometer THOMAS: Measurement of OH in the Middle Atmosphere and Comparison with Photochemical Model Results (2000)

Englert, Christoph, Schimpf, Birger, Birk, Manfred, Schreier, Franz, Krocka, Michail, Titz, R., ...

Measurement of Middle Atmospheric OH with the Improved 2.5 THz Heterodyne Spectrometer THOMAS: Comparison with MAHRSI Observations and Photochemical Models (2000)

Englert, Christoph, Schimpf, Birger, Birk, Manfred, Schreier, Franz, Conway, R.R., Stevens, M.H., ...

A new spectroscopic database for the ozone fundamentals (2000)

Wagner, Georg, Birk, Manfred, Schreier, Franz, Flaud, Jean Marie

High resolution IR lab spectroscopy of atmospheric (2000)

Birk, Manfred, Hausamann, Dieter, Schreier, Franz, Wagner, Georg

High resolution spectroscopy utilising a Bruker IFS 120 HR spectrometer was established at DLR during the end of the 80s. Since then extensive infrastructure has been built up regarding laboratory...

Spectroscopy of high temperature events: FOCUS on ISS (2000)

Haschberger, Peter, Bochter, Kurt, Tank, Volker, Oertel, Dieter, Beier, Kurt, Schreier, Franz, ...

Two dedicated spaceborne Fire Missions (1999)

Oertel, Dieter, Haschberger, Peter, Tank, Volker, Schreier, Franz, Schimpf, Birger, Zhukov, Boris, ...

Measurement of Middle Atmospheric OH with the Improved 2.5 THz Heterodyne Spectrometer THOMAS: Comparison With Photochemical Models (1999)

Englert, C. R., Schimpf, Birger, Birk, Manfred, Schreier, Franz, Summers, M. E.

PIRAMHYD Retrieval Study: Profiling by Far-Infrared Limb Sounding. (1998)

Goede, A., Bouwman, W., Helmich, F., Chance, Kelly, Carli, B., Ciarpallini, P., ...

Robust and Efficient Inversion of Vertical Sounding Atmospheric High Resolution Spectra by Means of Regularization (1997)

Schimpf, Birger, Schreier, Franz

Analysis of Limb Spectra by Means of Phillips-Tikhonov regularization (1997)

Schimpf, Birger, Schreier, Franz

Feasibility Study of Far Infrared Heterodyne Remote Sensing of OH in Aircraft Exhaust Plumes (1995)

Beier, Kurt, Hausamann, Dieter, Schreier, Franz, Titz, R.

Stratospheric OH measurements with a 2.5 THz Heterodyne Spectrometer (1995)

Titz, R., Birk, Manfred, Nitsche, R., Schreier, Franz, Wagner, Georg

Modeling of Aircraft Exhaust Emissions and Infrared Spectra for Remote Measurements of Nitrogen Oxides - Erratum (1995)

Analyse-Verfahren von atmosphrischen IR-Fernmessungen (1995)

Observation of stratospheric OH at 2.5 THz with an airborne heterodyne system (1995)

Titz, R., Birk, Manfred, Hausamann, Dieter, Nitsche, R., Schreier, Franz, Urban, J., ...

Inversion of Vertical Sounding Far-Infrared High Resolution by Means of Regularization (1995)

Inversion of Vertical Sounding Far-Infrared High Resolution Spectra by Means of Regularization (1995)

Schimpf, Birger, Schreier, Franz

FITMAS-Least-squares fitting of molecular line parameters from high resolution Fourier transform spectra Description and User's Guide (1995)

Schreier, Franz, Schimpf, Birger

2.5 THz Airborne Heterodyne System for Measurement of Stratospheric OH (1995)

Titz, R., Birk, Manfred, Hausamann, Dieter, Nitsche, R., Schreier, Franz, Urban, J., ...

Modeling of aircraft exhaust emissions and infrared spectra for remote measurement of nitrogen oxides (1994)

Line-by-line modeling and analysis of high resolution IR spectra at DLR (1994)

FITMAS - Least-squares fitting of molecular line parameters to high resolution Fourier transform spectra (1994)

Modeling of Aircraft Infrared Spectra for Remote Measurement of Exhaust Emission of SO and HNO3 (1994)

Analysis of High-Resolution Fourier Transform Molecular Spectra (1994)

Johns, J.W.C., Schreier, Franz, Schimpf, Birger, Birk, Manfred

FITMAS - Least-squares fitting of molecular line parameters from high resolution Fourier transform spectra (1993)

Schreier, Franz, Schimpf, Birger, Birk, Manfred

FITMAS - Least-squares fitting of molecular line parameters from high resolution Fourier transform spectra (1993)

Schreier, Franz, Schimpf, Birger, Birk, Manfred

A Comparison of Computational Approaches for the Voigt Function. (1992)

The Voigt and Complex Error Function: A Comparison of Computational Methods. (1992)

Modeling of Aircraft Exhaust Emissions and Infrared-Spectra for Remote Measurement of NO and NO (1992)

Airborne Far-Infrared Heterodyne Remote Sensing of Stratospheric OH: A Feasibility Study (1992)

Miller, S., Birk, Manfred, Schreier, Franz, Hausamann, Dieter

Remote sensing of stratospheric OH from high altitude aircraft (1992)

Birk, Manfred, Schreier, Franz, Hausamann, Dieter, Miller, S.

Unexplored but Important for Remote Sensing: The Difference Band of Ozone Near 30 µm (1991)

Birk, Manfred, Fries, Jochen, Hausamann, Dieter, Schreier, Franz

Ozone is one of the most thoroughly investigated atmospheric molecules. Nevertheless, in the region between 100 and 400 1/cm only a small amount of spectral data has been obtained. The low frequency...

Spektrallinien-Parameter atmosphärischer Treibhausgase. Änderung der Strahlungsflußdichte aufgrund von Treibhausgasen (1990)

Birk, Manfred, Hausamann, Dieter, Meerkötter, R., Schreier, Franz, Schumann, Ulrich, Wendling, Peter

Atmosphaerische Absorption im Infraroten fuer typische Wetterlagen im Raum Frankfurt. (1990)

Dichte-Funktional-Theoretische Untersuchung des linearen und nichtlinearen Elektronenresponse an Jellium-Metalloberflächen / (1989)

Schreier, Franz.

Zugl.: München, Univ., Diss., 1988.

Die Frage nach der Tragung des Betriebsrisikos im alten und neuen Arbeitsrecht unter Berücks. d. Kündigungsschutzvorschriften d. Gesetzes zur Ordnung d. nationalen Arbeit. (1936)

Schreier, Franz.

Auch im Buchh.

A few critical remarks concerning Dr. Gottlieb's test of root-canal treatment (1929)