GEO Department News Latest news from the Department of Geodesy and Geoinformation en GEO Department News Latest news from the Department of Geodesy and Geoinformation TYPO3 - get.content.right Wed, 24 May 2017 17:31:00 +0200 DriDanube stakeholder meeting

The “Copernicus nutzbar machen” workshop (in German language) will be held on the 30 May 2017 at the Austrian Federal Ministry of Agriculture, Forestry, Environment and Water Management. At this event, the planned outcomes of the Interreg Danube Transnational Programme project “DriDanube – Drought Risk in the Danube Region” will be presented to and discussed with the Austrian stakeholders. For additional information please contact Mr. Simon Hochstöger (simon.hochstoeger (at)

Announcements Remote Sensing Wed, 24 May 2017 17:31:00 +0200
HG Retreat 2017

The research area Advanced Geodesy is holding a retreat every second year in spring. This time we spent two days at Hohe Wand where we informed each other about current research activities and discussed future co-operations and focus areas.

Most of the participants at the HG retreat 2017.

Advanced Geodesy Wed, 24 May 2017 11:51:00 +0200
Oberösterreichische Nachrichten berichten über die Arbeit von Stefan Schaufler

Die Oberösterreichischen Nachrichten berichteten über unseren innviertler Mitarbeiter Stefan Schaufler und seine Arbeit im Bereich der Bodenfeuchte-Fernerkundung.

Der Artikel kann hier nachgelesen werden.

Stefan Schaufler, Foto: © David Reifeltshammer

Remote Sensing Mon, 22 May 2017 14:48:00 +0200
Onsala Twin Telescopes Inaugurated

After participating in the Working Meeting of the European VLBI Group on Geodesy and Astrometry (EVGA) in Gothenburg, members of the research group Advanced Geodesy took part in the inauguration of the new twin telescopes in Onsala (OTT) on May 18, 2017. OTT will contribute to the determination of significantly improved reference frames.

Matthias Schartner, Jakob Gruber, Johannes Böhm, Anastasiia Girdiuk, David Mayer and Hana Krasna in front of one the new telescopes in Onsala, Sweden

Advanced Geodesy Fri, 19 May 2017 10:34:00 +0200
Researcher in novel approaches for ground validation of remotely sensed soil moisture (m/f)

The research group Climate and Environmental Remote Sensing of the Department of Geodesy and Geoinformation of TU Wien is currently looking to recruit a motivated

Researcher in novel approaches for ground validation of remotely sensed soil moisture (m/f)

You enjoy working in a scientific environment at the interface of remote sensing and climate re-search? You are looking forward to collaborating with colleagues across wide national and international networks? You want to work with researchers towards excellent solutions to the technical problems that scientific work poses? You don’t mind getting your hands dirty during a field campaign? If the answers to these questions are yes, then this job is made for you.

The new Climate and Environmental Remote Sensing group develops long-term remote sensing and in-situ datasets of soil moisture and vegetation and uses them to address urgent climate and environmental issues. We work closely together with the Microwave Remote Sensing group, one of the world leading groups in the retrieval of soil moisture and land surface characteristics from active microwave remote sensing. Together we employ about 40 staff members currently working on approximately 15 projects supported by various national, European and international programs, grants and funding sources.

To support the research work of our team, we are looking for a skilled M.Sc. or Ph.D. candidate in remote sensing and ground-based soil moisture monitoring with a background or interest in geospatial sciences. The selected candidate will support the work of the International Soil Moisture Network, the world’s largest databank of ground-based soil moisture data, and develop new methodologies to use low-cost sensors and citi-zen science approaches for satellite validation.

Skills and Requirements

  • Bachelor or Master degree in geodesy, geoinformation sciences, environmental sciences, physical geography, information sciences, or similar
  • Ambition to perform scientific research and pursue a PhD dissertation
  • Profound knowledge in programming (e.g. Python, Matlab, C++)
  • Experience in database design and programming (SQL)
  • Interest in sensor technology
  • Willingness to perform fieldwork (data collection of soil moisture, vegetation, etc.)
  • Good written and spoken communication skills in English

We offer

  • The opportunity to work in an innovative, motivated and successful team
  • Possibility to enroll in the PhD program of TU Wien
  • Flexible working hours
  • Workplace close to city center of Vienna, metro and main train station
  • A stimulating and friendly working environment at the department
  • The position is limited to 2 years with the option of extension and will be in an extent of ap-proximately 30 hours per week, depending on the candidate’s degree and ambition. Details will be defined before signature of the contract.
  • The salary for this position is based on the Austrian regulations for university staff. The monthly minimum gross salary is € 1956,00 (BSc level) or € 2.731,00 (MSc level) based on full-time employment and is paid 14 times per year.

If this job opportunity fits your ambition we are looking forward to receiving your application (cover letter, CV, relevant references and publications) in English and as one single PDF file via e-mail to rs-sek (at) Candidate selection will start on 29 May 2017 and will continue until a suitable candidate is found. TU Wien will not refund any cost occurring in the course of an application.

For further information, please contact Prof. Wouter Dorigo at wouter.dorigo (at) or Dipl. -Ing. Angelika Xaver at angelika.xaver (at)  

A PDF version of this job offer is linked below.

Remote Sensing CLIMERS Open Positions Wed, 17 May 2017 17:01:00 +0200
Workshop "Analysieren, verstehen und orientieren topographischer Punktwolken"

Workshop am 23. und 24.11.2017 an der TU Wien

Link zum Anmeldeformular

Neben der Klassifizierung mittels Machine-Learning und der Ableitung morphologischer Strukturen aus topographischen Punktwolken werden neue Möglichkeiten zur kombinierten Orientierung von simultan erfassten ALS-Streifen und Bildern präsentiert. Die vermittelten Inhalte werden anhand von praktischen Beispielen mit dem Software-Paket OPALS (Orientation and Processing of Airborne Laser Scanning data) vertieft. Das Programm setzt sich im selben Ausmaß aus Vorlesungen und praktischen Übungen zusammen.



  • Machine-Learning-Methoden zur Klassifizierung von Punktwolken
  • 3D-Strukturlinien: Extraktion, Modellierung und Integration in Endprodukte
  • Integrierte Orientierung von ALS-Streifen und Photographien
  • Praktische Übungen
  • Interne und externe Vortragende

Download des Programms als PDF
Link zum Anmeldeformular

Announcements Photogrammetry Wed, 17 May 2017 09:16:00 +0200
Benedikt Soja promovierte sub auspiciis

Am 16. Mai 2017 fanden an der TU Wien Promotionen unter den Auspizien des Bundespräsidenten statt. Wir freuen uns, dass auch einer unser ehemaligen Kollegen die Auszeichnung erringen konnte:

Dipl.-Ing. Benedikt Soja, BSc
Dissertationsthema: Application of Kalman Filtering in VLBI Data Analysis
Betreuer: Univ.Prof. Dipl.-Ing. Dr. Harald Schuh


Das Department gratuliert sehr herzlich!


Siehe dazu auch die Pressemeldung auf der TU-Website.

Dekan der Fakultät für Mathematik und Geoinformation Michael Drmota, Max Riegler, Michael Hofbauer, Martin Puhl, Rektorin Sabine Seidler, Staatssekretär Harald Mahrer in Vertretung von Bundespräsident Alexander Van der Bellen, Martina Lindorfer, Roland Bliem, Benedikt Soja (v.l.n.r.) © TU Wien | Thomas Blazina

Benedikt Soja © E. Gantz, GFZ Potsdam

Advanced Geodesy Tue, 16 May 2017 17:49:00 +0200
New research group Climate and Environmental Remote Sensing at TU Wien GEO

We are happy to announce that since May 1 2017 the GEO Department officially hosts the new research group Climate and Environmental Remote Sensing (CLIMERS). CLIMERS ( will focus on the production of long-term Earth observation and in-situ land surface products and their use in solving urgent research questions related to our climate and environment.

The CLIMERS group has its foundations in the Microwave Remote Sensing group led by Wolfgang Wagner and is initially co-funded by the TU Wien Science Award received by Wouter Dorigo in 2015.

We are looking forward to continuing working together with our colleagues from the other GEO research groups and initiating new cooperations with other TU Wien research groups and (inter)national research partners.

Alexander, Angelika, Christoph, Daniel, Elsa, Felix, Irene, Matthias, Romina, Wolfi, Wouter



CLIMERS Mon, 15 May 2017 10:20:00 +0200
Spiegel on-line article about potential US budget cuts in earth observation cites Wolfgang Wagner [in German]

At the General Assembly 2017 of the European Geosciences Union (EGU) Wolfgang Wagner participated as a representative of the Global Climate Observing System (GCOS) at a Townhall Meeting on the topic of "Global environmental observations under pressure – new responsibilities for Europe?". Spiegel online reported about this event in a recent article [in German] "Stopp von Forschungsprogrammen – Drei Strategien gegen Trump"

Remote Sensing Tue, 09 May 2017 10:06:00 +0200
Berufungsvortrag Ingenieurgeodäsie

Am Montag, dem 22.5.2017, 14:00-15:00, findet im Seminarraum 121 ein öffentlicher Berufungsvortrag mit anschließendem öffentlichem Hearing im Berufungsverfahren "Ingenieurgeodäsie" statt:

Univ.Prof. Dr.-Ing. Hans-Berndt Neuner
Methodische Beiträge zur raum- und zeitkontinuierlichen Modellierung in der Ingenieurgeodäsie
Inhalt dieses Vortrages sind methodische Entwicklungen von Messmodellen und Modellen der Geodäsie, die einen Einsatz raum- und zeitkontinuierlicher Messverfahren für Aufgaben der Ingenieurgeodäsie unterstützen. Messmodelle dienen der Korrektion, Reduktion oder Quantifizierung der Unsicherheit unmittelbarer Messergebnisse. Modelle der Geodäsie beziehen sich auf die integrierte Auswertung heterogener Beobachtungstypen, mit dem Ziel primäre Zielgrößen wie Positionen, Orientierungen oder geometrische Formen sowie zugehörige Unsicherheitsmaße zu schätzen. Stellvertretend für die Messmodelle wird ein entwickeltes Verfahren zur Quantifizierung des Einflusses der Geometrie und der Materialeigenschaften auf die reflektorlose Distanzmessung scannender Totalstationen präsentiert. Daraus abgeleitete Größen können die Grundlage für die Berücksichtigung dieses Einflusses in raumkontinuierlichen Modellen der Geodäsie darstellen. Repräsentativ für Letztere wird auf einen raum-zeitkontinuierlichen Kollokationsansatz eingegangen, bei dem der Trendanteil mit Hilfe von B-Splines beschrieben wird. Der Fokus liegt auf die Präsentation eines innovativen Verfahrens zur Lösung der Modellselektionsaufgabe, die in der Bestimmung der Anzahl der Kontrollpunkte dieser geometrischen Strukturen besteht. Zeitkontinuierliche Modelle sind im Kontext der Pose-Bestimmung kinematischer Multi-Sensor-Systeme behandelt. Methodische Grundlage bildet die Kalman-Filterung. Es werden Aspekte der Parametrisierung der Systemgleichung, des Schätzmodells sowie der Qualitätsanalyse und -verbesserung der Messgrößen am Beispiel eines fahrbaren Roboters und der Mobile-Indoor-Navigation behandelt. Ansätze zur zukünftigen Weiterentwicklung der vorgestellten Methoden runden den Vortrag ab.

Methodological Contributions to the Space- and Time-continuous Modelling in Engineering Geodesy
This talk deals with methodological developments of measurement models and models of geodesy that sustain the use of space- and time-continuous measurement methods for tasks of engineering geodesy. Measurement models are used to correct, reduce and assess the uncertainty of measurement results. Models of geodesy refer to the integrated processing of heterogeneous observables aiming the estimation of primary target measures like position, orientation or geometric form as well as of their corresponding uncertainty. A novel approach to quantify the joint influence of geometry and the object’s material properties on the reflectorless distance measurement results of scanning total stations is treated representatively for the measurement models. Obtained measures can be used to account for this influence in the models of geodesy. The latter are represented by a space- and time-continuous collocation model whose trend component is described by B-Splines. The focus is set on an innovative approach to solve the model selection task that consists in estimating the number of control points of the geometric structures. Time-continuous models are handled in the context of pose determination of cinematic multi-sensor-systems. The Kalman filter forms the methodological basis. Topics like the parameterisation of the system equation, the estimation model as well as the quality analysis and improvement of the measurements are discussed for a skid-steered robot and the mobile-indoor-navigation. Ideas for the future development of the introduced methods conclude this talk.

Hinweis: Formal muss dieser Termin noch durch die Berufungskommission offiziell bestätigt werden. Theoretisch ist somit noch eine kurzfristige Absage möglich.

Announcements Engineering Geodesy Thu, 04 May 2017 16:49:00 +0200
geo4women summer job in remote sensing

In order to increase the proportion of women in our remote sensing group, we are offering a geo4women summer job to a female student who is interested in remote sensing.

The student can work on a self-proposed project idea that should fit in one of our current research fields – please see our projects and our recent publications for reference.

We offer

  • a full-time summer job for one month (40 hours per week, salary dependent on qualification)
  • a work space in our department
  • access to our data and infrastructure
  • flexible working times, a stimulating and friendly working environment and a motivated team.


Please apply if you are

  • female and
  • a bachelor or master student in the fields of geodesy, geoinformation, geo sciences or similar disciplines


Send your application in English as one single PDF file to rs-sek (at) until 15 May 2017, including

  • a description of your proposed project work in a maximum of 2 to 3 pages
  • a motivation letter
  • your CV, including information on your remote sensing experience
  • the keyword geo4women in the subject of the email.

International applications are welcome. However, we are sorry to inform you that we can not offer any support in travel, accommodation and visa matters.

Remote Sensing Women4Geo Open Positions CLIMERS Mon, 24 Apr 2017 13:52:00 +0200
Summer jobs in remote sensing

The research groups Microwave Remote Sensing (MRS) and Climate and Environmental Remote Sensing (CLIMERS) of the research area Remote Sensing, Department of Geodesy and Geoinformation (GEO) are looking for one student each, to work full time (40 hr/w) for 4-8 weeks during the summer holidays (July – September).

The MRS group engages in basic remote sensing research and develops methods for processing remote sensing data in order to generate value-added products such as soil moisture, vegetation optical depth, wetland maps, drought-warning indicators, and others. Furthermore, the group develops novel applications by collaborating with scientists from many other fields such as hydrology, climate change, meteorology, or agronomy.

The CLIMERS group engages in basic research and applications around Climate and the Environment by means of remote sensing and geophysical modelling. Research topics include the investigation of relationships between global warming and water availability, the understanding of controls on vegetation productivity, the modelling of ecosystem dynamics, investigations of relationships between climate change and water-ecosystem interactions, and many others.

You will support one of the teams with various programming tasks in specific research projects dealing with the above described topics, which will be defined upon start of the contract based on your qualifications and interests.

Strong programming skills (preferably in Python) and the capability to work efficiently and independently are required. A good mathematical background and knowledge about Git is of advantage.

The salary for this position is based on the Austrian regulations for university staff. The monthly minimum salary will be € 1956.00 (based on full-time employment).

The application should include:

  • Curriculum Vitae
  • Availability (preferred duration of contract (4 – max. 8 weeks) in July, August, and/or September)
  • Preferred research group (MRS or CLIMERS)

If you are interested, please send your application to rs-sek (at) until May 15th, 2017.


A PDF version of this vacancy is linked below.

Remote Sensing Open Positions CLIMERS Mon, 24 Apr 2017 13:50:00 +0200
2 PhD positions in photogrammetry

The Photogrammetry research group of the Department of Geodesy and Geoinformation of TU Wien is currently looking to recruit two motivated Ph.D. candidates:

  • Ph.D. candidate in Point Cloud Classification (m/f)
  • Ph.D. candidate in Laserscanning and Vegetation (m/f)

Please find all details in the vacancy descriptions linked below!

Deadline: 8 May 2017.

Photogrammetry Open Positions Mon, 24 Apr 2017 13:21:00 +0200
CORP 2017 an der TU Wien Panta Rhei - the World in Constant Motion

Die Raumplanerkonferenz REAL CORP findet vom 12. bis 14. September 2017 zum 22. Mal statt, nach längerer Pause wieder an der TU Wien. Die Forschungsgruppe Geoinformation ist heuer der Gastgeber und hofft auf rege Teilnahme von ForscherInnen und StudentInnen der TU Wien.

Einreichung von begutachteten Konferenzbeiträgen ist noch bis 2. Mai möglich, Präsentationen zu Diplomarbeiten und Dissertationen können noch bis 30. Juni angemeldet werden.

Kontaktperson: Gerhard Navratil (


The spatial planner conference REAL CORP will take place between September 12 and 14 2017 for the 22nd time. After a long break, REAL CORP is back at TU Vienna. The research group geoinformation is host of this year's conference and hopes for active participation from researchers and students of TU Vienna.

Submission of contributions for review is still possible until May 2, application for presentations of master thesis and PhD thesis is possible until June 30.

Contact person: Gerhard Navratil (

Announcements Geoinformation Wed, 19 Apr 2017 15:48:00 +0200
Master defense Gallistl

Donnerstag, 04.05.2017, 15:15
EI 11 Geodäsie HS, Neues EI, Stiege 1, 3. Stock, Gußhausstraße 25‐29, 1040 Wien

Data‐error quantification in time‐domain induced polarization imaging based on the analysis of the decay curve

Announcements Geophysics Wed, 19 Apr 2017 13:21:00 +0200
Master defense Glaner, Achs & Pointner

Dienstag, 02.05.2017
Besprechungsraum CB0525, Neues EI, Stiege 1, 5. Stock, Gußhausstraße 25‐29, 1040 Wien

13:00 Uhr: Marcus GLANER
Eigenschaften und Einsatzmöglichkeiten von GPS und Galileo Signal‐Linearkombinationen

14:15 Uhr: Thomas ACHS
Untersuchung zur Genauigkeit des terrestrischen Laserscanners Superhaser 100HSX

15:30 Uhr: Georg POINTNER
Large‐scale Mapping of Ground‐fast Lake Ice in the Arctic using CBand Synthetic Aperture Radar Observations

Announcements Remote Sensing Photogrammetry Advanced Geodesy Wed, 19 Apr 2017 13:17:00 +0200
PhD defense Schlaffer

Freitag, 21. April 2017, 14:00 Uhr
EI11 Geodäsie Hörsaal, Gußhausstraße 27‐29, Stiege 1, 3. Stock, 1040 Wien

Stefan Schlaffer
Derivation of land‐surface backscatter signatures from SAR time series for flood and wetland delineation

Abstract der Kurz‐Präsentation siehe:

Announcements Remote Sensing Wed, 19 Apr 2017 11:05:00 +0200
GewinnerInnen des Studien-Folder-Wettbewerbs "Geodäsie und Geoinformation"

Im Rahmen der Departmentsveranstaltung zum Thema Studien-PR am 29.3.2017 fand die Preisverleihung zum Studien-Folder-Ideenwettbewerb statt, welcher vom Department Ende 2016 ausgerufen worden war. Ziel war es, ein ansprechendes Konzept für einen Studieninformationsfolder zu finden, um damit über das Studium "Geodäsie und Geoinformation" zu informieren.

Vielen Dank an alle EinreicherInnen für ihre kreativen Entwürfe. Die drei GewinnerInnen waren die Teams um Felix Zaussinger, Tobias Stachl, Manuela Schmidt und Andreas Bayr.

Mehr Infos zum neuen Folder folgen demnächst!

Remote Sensing Photogrammetry Advanced Geodesy Engineering Geodesy Geoinformation Cartography Geophysics Women4Geo Fri, 07 Apr 2017 16:52:00 +0200
Michael Wimmer represents the GEO department at "Masters in Research"

Michael Wimmer presented his master thesis

Comparison of active and passive optical methods for mapping river bathymetry

at the Masters in Research event organized by TU Wien. The event was part of TU's Vision 2025+ initiative and focused on TU's approach to research-oriented teaching.

Read more about the event [in German] at

Michael Wimmer, © TU Vision 2025+ / Thomas Kiefer

Kurt Matyas, Vice-Rector for Academic Affairs, © TU Vision 2025+ / Thomas Kiefer

Photogrammetry Thu, 06 Apr 2017 17:48:00 +0200
TOPC holds its 19th meeting at the GEO Department

The Terrestrial Observation Panel for Climate (TOPC) is holding its 19th meeting at TU Wien on 5–7 April 2017. The panel is chaired by Wolfgang Wagner, who will serve in this function for the period 2017–2019.

See news story at TU Wien home page [in German]: "Daten sammeln für das Klima – Prof. Wolfgang Wagner von der TU Wien wurde zum Vorsitzenden des Terrestrial Observation Panel for Climate (TOPC) gewählt."

Remote Sensing Thu, 06 Apr 2017 09:14:00 +0200
GEO Contribution to the African VLBI Network School

Matthias Schartner and David Mayer taught at the African VLBI Network (AVN) School in March 2017 in Hartebeesthoek, South Africa. They gave lectures about geodetic VLBI and presented practical exercises with the Vienna VLBI and Satellite Software (VieVS). About 20 students from Namibia, Zambia and Botswana took park in the AVN School.


Group photo with the teachers at the AVN School

David Mayer giving a lecture at the AVN School

Advanced Geodesy Fri, 31 Mar 2017 11:35:00 +0200
Artikel über die Grenzstein-Initiative Grenzen und Grenzsteine als UNESCO Weltgerbe

Am 21.3. hat Atlas Obscura einen Artikel über die Grenzstein-Initiative von Peter Waldhäusl gebracht. Beteiligt sind an dieser Arbeitsgruppe der OVG außerdem noch Gerhard Navratil von der TU Wien, Reinfried Mansberger von der Boku, Klaus Hanke von der Universität Innsbruck, Gerda Schennach vom BEV, Elisabeth Janeschitz von der Kärntner Landesregierung, sowie Günther Abart, Michael Hiermanseder, Heinz König und Christoph Twaroch.

Geoinformation Tue, 28 Mar 2017 08:03:00 +0200
Wiener Zeitung reports about Big Data Challenges @VSC and @EODC_GmbH

The Austrian newspaper Wiener Zeitung published an article in their Future Magazine on 25 March 2017 entitled

Big Data in der Wissenschaft: Eine Datenfülle, die zu schaffen macht

that covers the approaches of the Vienna Scientific Cluster, EODC and TU Wien to handling large amounts of satellite data. You can read the article [in German] as a PDF, linked below.

Remote Sensing Sat, 25 Mar 2017 15:11:00 +0100
Special issue of Remote Sensing: Retrieval, Validation and Application of Satellite Soil Moisture Data

Related to the 4th Satellite Soil Moisture Validation and Application Workshop which will be held at TU Wien in September 2017 we are happy to inform about a Special Issue of the MDPI Remote Sensing Journal on the Retrieval, Validation and Application of Satellite Soil Moisture Data.

Deadline for manuscript submissions: 20 November 2017

For more details please check

Announcements Remote Sensing CLIMERS Wed, 22 Mar 2017 13:05:00 +0100
4th Satellite Soil Moisture Validation and Application Workshop & CCI Soil Moisture User Workshop

We would like to announce the 4th Satellite Soil Moisture Validation and Application Workshop (19-20 September 2017) and the CCI Soil Moisture User Workshop (18 September 2017), to take place at the Vienna University of Technology (TU Wien), Austria. The abstract submission deadline is 15 May 2017 (extended).

For more information please see the conference website:

Announcements Remote Sensing CLIMERS Fri, 17 Mar 2017 15:25:00 +0100
The greening Earth – Matthias Forkel interviewed for „VDI Nachrichten”

VDI Nachrichten, a German weekly newspaper on engineering and technology, published an article about the effect of climate change on vegetation (“Die Erde wird grüner” by Susanne Donner, 2017/03/03). Matthias Forkel from TU Wien’s EOWAVE project was interviewed for this article.



Unfortunately, some citations are incorrectly reported.

Nadelwald ist intensiver grün als Laubwald und führt deshalb auch zu einem mehr an Grün”.

The “greenness” of vegetation can be measured from satellite observations. Therefore vegetation indices (e.g. NDVI) are calculated as metrics for vegetation greenness from the satellite measurements. Needle-leaved forests have usually lower NDVI values (i.e. less green) than broadleaved forests (i.e. more green). Satellite observations over the northern forests (i.e. boreal forests or Taiga) show that positive trends in vegetation greenness occur which is called “greening”. The greening in northern forests is largely caused by an increasing growth of broadleaved trees and shrubs.


Pflanzen und Bäume nehmen zwar CO2 aus der Luft auf – etwa ein Viertel dem Treibhausgases, das in die Atmosphäre gelangt. Aber durch den Blätterboom wird es kaum mehr. ‚Der Wert stieg gerade einmal von 25 % auf 26 %‘, stellt Forkel klar.“

The burning of fossil fuels, cement production, and land use change (e.g. deforestation) are causing emissions of CO2 to the atmosphere. These emissions are approximately 8.9 Pg (peta grams, 1 Pg = 1015 g) of CO2 per year in the period 2000-2009 [1]. The oceans take up 2.3 Pg per year (26 % of the emissions) and the land ecosystems take up 2.6 Pg (29 % of the emissions). The rest of the emissions (4 Pg = 45%) remains in the atmosphere and causes the increasing CO2 concentrations. Our own results show that the CO2 uptake by land ecosystems was increasing by around 6 % per year in the period 1980 to 2011 [2]. This increasing uptake of CO2 by land ecosystems is largely caused by an increasing photosynthesis of the vegetation. The increase in photosynthetic carbon uptake is caused by several effects: The increase of CO2 in the atmosphere allows the plants to take up more CO2. The warming climate allows longer and more productive growing seasons especially in northern ecosystems. The increase in vegetation greenness (i.e. an increase in leaf area, “Blätterboom”) allows the vegetation to absorb more solar radiation for photosynthesis. The importance of these processes for changes in photosynthesis however depends on regional climate conditions and ecosystem types.

Forkel stellt aber klar: ‘Der wichtigste Klimafaktor ist die Bodenfeuchte. Es sind vornehmlich bessere Bewässerungsmethoden und auch eine intensivere Düngung in den letzten Jahrzehnten, die in vielen Industrie- und Schwellenländern das Plus an Pflanzen erklären.‘“

Soil moisture is the most important factor for plant growth in regions that are limited by water (for examples Steppes, semi-deserts, the Mediterranean, Savannahs). The irrigation of agricultural areas in these regions contributes indeed to the observed increased plant growth. Fertilization of agricultural areas also contributes to the observed plant growth. However, temperature is a more important factor for plant growth than soil moisture in other regions such as in northern ecosystems (Taiga and Tundra) [3].


[1] Ciais, P., Sabine, C., Bala, G., Bopp, L., Brovkin, V., Canadell, J. G., Chhabra, A., DeFries, R. S., Galloway, J., Heimann, Martin, Jones, C., Le Quéré, C., Myneni, R., Piao, S. and Thornton, P. E.: Carbon and Other Biogeochemical Cycles, in Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, edited by T. F. Stocker, D. Qin, G.-K. Plattner, M. Tignor, S. K. Allen, J. Boschung, A. Nauels, J. Xia, Bex, V., and Midgley, P. M., pp. 465–570, Cambridge, United Kingdom and New York, USA. [online] Available from:, 2013. 

[2] Forkel, M., Carvalhais, N., Rödenbeck, C., Keeling, R., Heimann, M., Thonicke, K., Zaehle, S. and Reichstein, M.: Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems, Science, aac4971, doi:10.1126/science.aac4971, 2016. 

[3] Forkel, M., Migliavacca, M., Thonicke, K., Reichstein, M., Schaphoff, S., Weber, U. and Carvalhais, N.: Codominant water control on global interannual variability and trends in land surface phenology and greenness, Global Change Biolology, 21(9), 3414–3435, doi:10.1111/gcb.12950, 2015.

CLIMERS Fri, 17 Mar 2017 06:33:00 +0100
Master defense Heer & Cipa

Montag, 20.03.2017
EI 11 Geodäsie HS, Neues EI, Stiege 1, 3. Stock, Gußhausstraße 25‐29, 1040 Wien

15:00 Uhr: Elsa HEER
Evaluation and Enhancement of Automated Quality Control Procedures fort he International Soil Moisture Network

16:15 Uhr: Nilüfer CIPA
3D City Modeling: A Comparative Study of Three Approaches

Photogrammetry Remote Sensing Announcements Women4Geo Mon, 13 Mar 2017 18:11:00 +0100
Seminar der Geowissenschaften Sommersemester 2017 Vortragstermine

3.4.2017 (EI 11, 15.00 Uhr)

  • Heinrich, Manfred (Robert Weber) MGEX - Multi GNSS Experiment
  • Winiwarter, Lukas (Johannes Otepka) Automatische Ableitung von Strukturlinien aus 3D-Punktwolken

8.5.2017 (EI 11, 15.00 Uhr)

  • Crocetti, Laura (Janina Boisits / Johannes Böhm) E-GRASP/Erathostenes
  • Jungwirth, Stefan (Daniel Landskron / Johannes Böhm) GNSS Radio Occulation
  • Wundsam, David (Adrian Flores-Orozco) Geophysical delineation of water flow patterns in clay-rich landslides

15.5.2017 (EI 11, 15.00 Uhr)

  • Navacchi, Claudio (Alexander Gruber) Evaluation of Earth Observation Data based on Information Theory Concepts
  • Resch, Rudolf (Camillo Ressl) Vergleich zweier Verfahren zur Korrektur dert RPCs von Satelliten-Bildern
  • Schmitzer, Manuel (Gerhard Navratil / Nikola Jankovic) LandXML and CityGML

29.5.2017 (EI 11, 15.00 Uhr)

  • Geiger, Julia (Matthias Forkel) Remote Sensing to Improve Vegetation Dynamics in GLobal Climate Models
  • Ivanova, Anastasia (Paolo Fogliaroni) Applications of Geo/Spatial Linked Data
  • Stefanovic, Mladen (Wolfgang Wagner) Coupling SAR C-Band and Optical Data for Soil Moisture and Leaf Area Retrieval Over Irrigated Grassland

26.6.2017 (EI 11, 15.00 Uhr)

  • Funk, Barbara (Adrian Flores-Orozco) Hohlraumdetektion mit Hilfe geophysikalischer Methoden
  • Gutlederer, Klaus (Johannes Böhm) VLBI Observations of GNSS-Satellites
  • Ley, Sarah (Adrian Flores-Orozco) t.b.a.
  • Mayer, Johannes (Adrian Flores-Orozco) t.b.a.
  • Prochazka, Philip (Robert Weber) Aktuelle Genauigkeit der GNSS Einzelpunktbestimmung - Realität versus Systemspezifikation

Announcements Mon, 06 Mar 2017 16:12:00 +0100
CNN reports about SATIDA

CNN interviewed Markus Enenkel, the project leader of SATIDA for their coverage of The tech solutions to end global hunger.

Remote Sensing Mon, 27 Feb 2017 14:50:00 +0100
Heinrich-Wild-Preis 2016 für Tomas Thalmann

Vom 17. bis 26. Jänner fand auch heuer wieder die Leica & rmDATA Tour 2017 an 6 Standorten in Österreich statt. Im Zuge dieser Tour wurde von der Firma Leica Geosystems der „Heinrich-Wild-Preis“ für besondere Leistungen im Bereich der Ingenieurgeodäsie an Tomas Thalmann (von der Forschungsgruppe Ingenieurgeodäsie an der TU Wien) verliehen. Er stellte seine Arbeit in einem Vortrag unter dem Titel „Kalibrierung von fahrbaren Robotern als Multi-Sensor-Systeme“ vor insgesamt 400 Interessierten vor.

Raik Frankenberger (Leica Geosystems), Tomas Thalmann (TU Wien), Hans-Berndt Neuner (TU Wien), Georg Flechl (Leica Geosystems)

Engineering Geodesy Mon, 20 Feb 2017 17:26:00 +0100