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Vorhaben: Reprozessierung von CHAMP und GRACE-Beobachtungen zur Berechnung von verbesserten statischen und zeitvariablen Gravitationsfeldmodellen mit regionaler Verfeinerung - Sonderprogramm GEOTECHNOLOGIEN^LOTSE-CHAMP/GRACE - Lange Zeitreihen konsistent reprozessierter hochgenauer CHAMP/GRACE Produkte^Vorhaben: Wavelet-Korrelation Analyse von CHAMP Magnetfeld Modellen - Sonderprogramm GEOTECHNOLOGIEN (WACO-CHAMP)^Vorhaben: Verbesserte Modellierung der Akzelerometer und alternative Level 1 Prozessierung (IMPALA) - Sonderprogramm GEOTECHNOLOGIEN, Leitantrag; Vorhaben: Baseline-konsistente CHAMP- und GRACE-Schwerefelder, Analyse atmosphärischer CHAMP/GRACE-Daten und klimat. Untersuchungen, CHAMP-Magnetfeldmodellierung - GEOTECHNOLOGIEN

Das Verbundprojekt LOTSE-CHAMP/GRACE hat das Hauptziel, alle Schwerefeld-, Magnetfeld und Radiookkultationsdaten der gesamten CHAMP- und GRACE-Missionen neu zu prozessieren, um lange, konsistente und hochqualitative Zeitreihen von statischen und zeitvariablen Schwerefeldmodellen zu erhalten, die die Massenverteilung und Massenvariation im System Erde sowie atmosphärische Zustandsparameter (z. B. mittlere globale Temperatur, Feuchtigkeit) und den Zustand und die Änderungen des äußeren Erdkerns und des lithosphärischen Magnetfeldes noch genauer beschreiben als es derzeitig der Fall ist.

Vorhaben: Wavelet-Korrelation Analyse von CHAMP Magnetfeld Modellen - Sonderprogramm GEOTECHNOLOGIEN (WACO-CHAMP)^LOTSE-CHAMP/GRACE - Lange Zeitreihen konsistent reprozessierter hochgenauer CHAMP/GRACE Produkte^Vorhaben: Verbesserte Modellierung der Akzelerometer und alternative Level 1 Prozessierung (IMPALA) - Sonderprogramm GEOTECHNOLOGIEN, Vorhaben: Reprozessierung von CHAMP und GRACE-Beobachtungen zur Berechnung von verbesserten statischen und zeitvariablen Gravitationsfeldmodellen mit regionaler Verfeinerung - Sonderprogramm GEOTECHNOLOGIEN

Das Verbundprojekt LOTSE-CHAMP/GRACE hat das Hauptziel, alle Schwerefeld-, Magnetfeld und Radiookkultationsdaten der gesamten CHAMP- und GRACE-Missionen neu zu prozessieren, um lange, konsistente und hochqualitative Zeitreihen von statischen und zeitvariablen Schwerefeldmodellen zu erhalten, die die Massenverteilung und Massenvariation im System Erde sowie atmosphärische Zustandsparameter (z. B. mittlere globale Temperatur, Feuchtigkeit) und den Zustand und die Änderungen des äußeren Erdkerns und des lithosphärischen Magnetfeldes noch genauer beschreiben als es derzeitig der Fall ist.

LOTSE-CHAMP/GRACE - Lange Zeitreihen konsistent reprozessierter hochgenauer CHAMP/GRACE Produkte, Vorhaben: Wavelet-Korrelation Analyse von CHAMP Magnetfeld Modellen - Sonderprogramm GEOTECHNOLOGIEN (WACO-CHAMP)

Das Verbundprojekt LOTSE-CHAMP/GRACE hat das Hauptziel, alle Schwerefeld-, Magnetfeld und Radiookkultationsdaten der gesamten CHAMP- und GRACE-Missionen neu zu prozessieren, um lange, konsistente und hochqualitative Zeitreihen von statischen und zeitvariablen Schwerefeldmodellen zu erhalten, die die Massenverteilung und Massenvariation im System Erde sowie atmosphärische Zustandsparameter (z. B. mittlere globale Temperatur, Feuchtigkeit) und den Zustand und die Änderungen des äußeren Erdkerns und des lithosphärischen Magnetfeldes noch genauer beschreiben als es derzeitig der Fall ist.

CHAMP ME Orbit Counter

This dataset is an add-on to the CHAMP Level 3 Magnetic/Electric Field (ME) data files of the `LEO' satellite 'CHAMP'. It contains the date, time and location of the CHAMP satellite when crossing the equator in ascending direction. The data has been derived from high precision GPS position measurements (RSO and PDO). Small gaps have been interpolated, larger gaps have been filled using orbit prediction from NASA Space Physics Data Facility (SPDF). The file format is CDF (NASA CDF) and contains all meta data for description, the content is an extended version of the SW_OPER_AUXAORBCNT product from Swarm satellite mission. Magnetic local time (MLT) at the equator crossing has been calculated using Emmert et. al (2010).

CH-ME-2-PLPT - CHAMP Electron Density and Temperature Time Series in Low Time Resolution (Level 2)

Electron density and electron temperature time series from 'LEO' satellite 'CHAMP' for the CHAMP mission period at satellite position in low time resolution of 15 second and given in daily files. This are processed readings from the Planar Langmuir probe, which, in normal flight mode, was exposed in flight direction at the front of the `CHAMP' satellite body. The files are formatted as simple 'ASCII'-listings with white-space delimited columns. The full product and format descriptions are provided in the associated Scientific Technical Report - Data (GFZ Section 2.3, 2019. http://doi.org/10.2312/GFZ.b103-19104). ---------- 13 March 2025: addition of Jan Rauberg as co-author

CH-ME-3-ASC-BOOM - CHAMP 1 Hz Satellite Attitude Time Series in Quaternion Format (Level 3)

Time series of processed, cleaned attitude readings in quaternion format of the two boom-mounted 'ASC' star sensors of the 'LEO' satellite 'CHAMP', describing the satellite system attitude in respect to the celestial background. The nominal time resolution of the time series in the 'ASCII'-file listing is 1 Hz. The full product and format descriptions are provided in the associated Scientific Technical Report - Data 19/10 (GFZ Section 2.3, 2019. https://doi.org/10.2312/GFZ.b103-19104).

CH-ME-3-MAG - CHAMP 1 Hz Combined Magnetic Field Time Series (Level 3)

This is a Level 3 data daily file product from various scientific and utility sensors on board of the `LEO' satellite 'CHAMP' with magnetic field data given by a time resolution of 1 Hz. Thise Level 3 data type is build to hold and merge finally corrected data, focusing on mature data calibration and corrections -- as well as internal consistency. This Level 3 data product is intended to supersede the various Level 2 versions with calibrated magnetic field readings from the CHAMP mission distributed hitherto and should be fitted for scientific use, assembling time series of scalar magnetic field values (but not directly readings from the scalar Overhauser sensor), vector magnetic field data from the boom-mounted Fluxgate 'FGM' sensors and attitude data from the ('ASC') boom-mounted Star Cameras. The vector data are given both in the satellite-bound sensor ('FGM') system and the Earth Centered Earth Fixed local 'NEC' (North-East-Center) system. The attitude time series, processed and cleaned, are represented by quaternions describing the satellite attitude related to the celestial system. The readings of the scalar OVM (Overhauser) absolute magnetometer at the top of the boom are not supplied directly, but were used during calibration of the vector magnetometer readings. The files with daily time coverage are in the (binary and self-describing) 'CDF' file format and accompanied, beside the generic 'CDF'-format timestamp, by the satellite's geocentric positions and utility information like quality flags. The full product and format descriptions are provided in the associated Scientific Technical Report - Data (GFZ Section 2.3, 2019. https://doi.org/10.2312/GFZ.b103-19104). ---------- 13 March 2025: addition of Jan Rauberg as co-author

GFZ CHAMP Rapid Science Orbits (version 1)

This dataset provides Rapid Science Orbits (RSO) from the Low Earth Orbiter (LEO) satellite CHAMP. It is part of the compilation of GFZ RSO products for various LEO missions and the appropriate GNSS constellation in sp3 format. The individual solutions for each satellite mission are published with individual DOI as part of the compilation (Schreiner et al., 2022). • The CHAMP RSO cover the period from 2000 202 to 2010 247 The LEO RSOs in version 1 are generated based on the 24-hour GPS RSOs in two pieces for the actual day with arc lengths of 14 hours and overlaps of 2 hours. One starting at 22:00 and ending at 12:00, one starting at 10:00 and ending at 24:00. For day overlapping arcs two 24h GNSS constellations are concatenated. The accuracy of the LEO RSOs is at the level of 1-2 cm in terms of SLR validation. Each solution in version 1 is given in the Conventional Terrestrial Reference System (CTS) based on the IERS 2003 conventions and related to the ITRF-2008 reference frame. The exact time covered by an arc is defined in the header of the files and indicated as well as in the filename.

CH-ME-2-FGM-SCI - CHAMP 50 Hz Magnetic Field Vector Time Series in Sensor- and ECEF-(NEC)-System (Level 2)

Earth's magnetic field vector time series from `LEO' satellite 'CHAMP' for the 'CHAMP' mission period in high, unaveraged 50 Hz time resolution, using measurements from the FGM vector magnetometers and `ASC' Star Sensors on the mid-boom optical bench. The vector data are corrected and calibrated (by using the Overhauser scalar magnetometer as reference). The magnetic field vector data are given both in the satellite-bound sensor (`FGM') system and in the Earth Centered Earth Fixed local `NEC' (North-East-Center) system. For the latter the attitude time series (`ASC'), processed and cleaned, represented by quaternions describing the satellite attitude related to the celestial system, were used for the transformation. The files with daily time coverage are in the (binary and self-describing) `CDF' file format and accompanied, beside the `CDF'-format generic timestamp, by the satellite's geocentric positions and utility information like quality flags.The full product and format descriptions are provided in the associated Scientific Technical Report - Data (GFZ Section 2.3, 2019. http://doi.org/10.2312/GFZ.b103-19104).

Einfluss elektromagnetischer Felder auf Flechten-Transplantate

In einem Bestrahlungsversuch am WSL/Birmensdorf werden Flechten der Art Hypogymnia physodes verschieden starken elektromagnetischen Feldern ausgesetzt (0.1-30mW/cm2). Das Projekt hat zum Ziel, abzuklaeren, ob elektromagnetische Felder, wie sie im Feldversuch am WSL verwendet werden, Flechten sichtbar schaedigen (Ja/Nein-Entscheid). Das Projekt bietet die Moeglichkeit, auf der Basis der festgestellten Flechtenreaktion das Experiment zu erweitern und spezifische Fragestellungen naeher zu bearbeiten. Entsprechend dieser Zielsetzung wurde eine einfache Versuchsanlage gewaehlt und die Auswertung auf sichtbare Bonitierung (Schaedigung und Wachstum) beschraenkt.

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