Vreugdenhil, Mariette

Senior Scientist Dr.in techn. MSc

Research Division:
Remote Sensing
University Assistant
Research Area:
Remote sensing of soil moisture and vegetation dynamics

Develop high resolution vegetation datasets from Sentinel-1 and ASCAT backscatter observations

Wiedner Hauptstraße 8 / E120-01 (DC02P18)
Phone #:
+43 1 58801 12260


My interest in Earth Observation and the effect of climate change on Earth’s ecosystems developed during my B.Sc. and M.Sc. in Earth Sciences at the VU University Amsterdam, The Netherlands. This motivated me to pursue a PhD in remote sensing which I started in 2012 at the Department for Geodesy and Geoinformation, TU Wien with Prof. Wolfgang Wagner and as part of the Doctoral Programme on Water Resource Systems with Prof. Günter Blöschl. During my PhD I focused on assessing vegetation dynamics from spaceborne active microwave backscatter observations. Since obtaining my PhD in 2016 I have been working as a researcher at TU Wien in the field of microwave remote sensing.

My area of expertise is the development of retrieval algorithms for vegetation and soil moisture from active microwave observations, in particular from the Advanced SCATterometer on-board of EUMETSAT Metop satellites and from the Synthetic Aperture Radars on-board of the Copernicus Sentinel-1 satellites. In addition, I work on the validation of Earth Observation datasets with in situ data collected from networks and field campaigns.

Currently I work on applications of microwave-based soil moisture and vegetation data, particularly for drought monitoring and its impact on vegetation. This includes the use of Metop ASCAT and Sentinel-1 for carbon modelling (ESA Land Carbon Constellation), and to improve our understanding on the local impacts of water availability on vegetation (ESA Living Planet Fellowship). Furthermore, I work on several drought monitoring for early warning and early action in projects together with the World Bank, FFG and the Austrian Development Agency.
For more information on Metop ASCAT and Sentinel-1 for vegetation monitoring, please check: https://eo4society.esa.int/lpf/mariette-vreugdenhil/ https://eo4society.esa.int/projects/land-surface-carbon-constellation-study/


Vreugdenhil, M., Széles, B., Salinas, J.L., Strauß, P., Oismueller, M., Hogan, P., Wagner, W., Parajka, J., Blöschl, G., 2022. Non-linearity in event runoff generation in a small agricultural catchment. Hydrological Processes 36, e14667. https://doi.org/10.1002/hyp.14667

Vreugdenhil, M., Navacchi, C., Bauer-Marschallinger, B., Hahn, S., Steele-Dunne, S., Pfeil, I., Dorigo, W., Wagner, W., 2020. Sentinel-1 Cross Ratio and Vegetation Optical Depth: A Comparison over Europe. Remote Sensing 12, 3404. https://doi.org/10.3390/rs12203404

Vreugdenhil, M., Wagner, W., Bauer-Marschallinger, B., Pfeil, I., Teubner, I., Rüdiger, C., Strauss, P., 2018. Sensitivity of Sentinel-1 backscatter to vegetation dynamics: An Austrian case study. Remote Sensing 10. https://doi.org/10.3390/rs10091396

Vreugdenhil, M., Hahn, S., Melzer, T., Bauer-Marschallinger, B., Reimer, C., Dorigo, W.A., Wagner, W., 2017. Assessing Vegetation Dynamics Over Mainland Australia With Metop ASCAT. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 10, 2240–2248. https://doi.org/10.1109/JSTARS.2016.2618838

Vreugdenhil, M., Dorigo, W.A., Wagner, W., De Jeu, R.A.M., Hahn, S., Van Marle, M.J.E., 2016. Analyzing the Vegetation Parameterization in the TU-Wien ASCAT Soil Moisture Retrieval. IEEE Transactions on Geoscience and Remote Sensing 54, 3513–3531. https://doi.org/10.1109/TGRS.2016.2519842

Vreugdenhil, M., Dorigo, W., Broer, M., Haas, P., Eder, A., Hogan, P., Bloeschl, G., Wagner, W., 2013b. Towards a high-density soil moisture network for the validation of SMAP in Petzenkirchen, Austria. Presented at the International Geoscience and Remote Sensing Symposium (IGARSS), pp. 1865–1868. https://doi.org/10.1109/IGARSS.2013.6723166

Vreugdenhil, M., De Jeu, R.A.M., Walker, J.P., 2013a. Identification of clay pans from AMSR-E passive microwave observations. International Journal of Remote Sensing 34, 5201–5212. https://doi.org/10.1080/01431161.2013.788801

Petchiappan, A., Steele-Dunne, S.C., Vreugdenhil, M., Hahn, S., Wagner, W., Oliveira, R., 2022. The influence of vegetation water dynamics on the ASCAT backscatter–incidence angle relationship in the Amazon. Hydrology and Earth System Sciences 26, 2997–3019. https://doi.org/10.5194/hess-26-2997-2022

Khabbazan, S., Steele-Dunne, S.C., Vermunt, P., Judge, J., Vreugdenhil, M., Gao, G., 2022. The influence of surface canopy water on the relationship between L-band backscatter and biophysical variables in agricultural monitoring. Remote Sensing of Environment 268. https://doi.org/10.1016/j.rse.2021.112789

Colliander, A., Reichle, R.H., Crow, W.T., Cosh, M.H., Chen, F., Chan, S., Das, N.N., Bindlish, R., Chaubell, J., Kim, S., Liu, Q., O’Neill, P.E., Dunbar, R.S., Dang, L.B., Kimball, J.S., Jackson, T.J., Al-Jassar, H.K., Asanuma, J., Bhattacharya, B.K., Berg, A.A., Bosch, D.D., Bourgeau-Chavez, L., Caldwell, T., Calvet, J.-C., Collins, C.H., Jensen, K.H., Livingston, S., Lopez-Baeza, E., Martínez-Fernández, J., McNairn, H., Moghaddam, M., Montzka, C., Notarnicola, C., Pellarin, T., Greimeister-Pfeil, I., Pulliainen, J., Ramos Hernández, J.Gpe., Seyfried, M., Starks, P.J., Su, Z., van der Velde, R., Zeng, Y., Thibeault, M., Vreugdenhil, M., Walker, J.P., Zribi, M., Entekhabi, D., Yueh, S.H., 2022. Validation of Soil Moisture Data Products From the NASA SMAP Mission. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 15, 364–392. https://doi.org/10.1109/JSTARS.2021.3124743

Alfieri, L., Avanzi, F., Delogu, F., Gabellani, S., Bruno, G., Campo, L., Libertino, A., Massari, C., Tarpanelli, A., Rains, D., Miralles, D.G., Quast, R., Vreugdenhil, M., Wu, H., Brocca, L., 2022. High-resolution satellite products improve hydrological modeling in northern Italy. Hydrology and Earth System Sciences 26, 3921–3939. https://doi.org/10.5194/hess-26-3921-2022

Tong, R., Parajka, J., Salentinig, A., Pfeil, I., Komma, J., Széles, B., Kubáň, M., Valent, P., Vreugdenhil, M., Wagner, W., others, 2021. The value of ASCAT soil moisture and MODIS snow cover data for calibrating a conceptual hydrologic model. Hydrology and Earth System Sciences 25, 1389–1410.

Steele-Dunne, S.C., Hahn, S., Wagner, W., Vreugdenhil, M., 2021. Towards Including Dynamic Vegetation Parameters in the EUMETSAT H SAF ASCAT Soil Moisture Products. Remote Sensing 13, 1463.

Reuß, F., Greimeister-Pfeil, I., Vreugdenhil, M., Wagner, W., 2021. Comparison of Long Short-Term Memory Networks and Random Forest for Sentinel-1 Time Series Based Large Scale Crop Classification. Remote Sensing 13, 5000. https://doi.org/10.3390/rs13245000

Massari, C., Modanesi, S., Dari, J., Gruber, A., De Lannoy, G.J.M., Girotto, M., Quintana-Seguí, P., Le Page, M., Jarlan, L., Zribi, M., Ouaadi, N., Vreugdenhil, M., Zappa, L., Dorigo, W., Wagner, W., Brombacher, J., Pelgrum, H., Jaquot, P., Freeman, V., Volden, E., Fernandez Prieto, D., Tarpanelli, A., Barbetta, S., Brocca, L., 2021. A Review of Irrigation Information Retrievals from Space and Their Utility for Users. Remote Sensing 13, 4112. https://doi.org/10.3390/rs13204112

Pfeil, I., Wagner, W., Forkel, M., Dorigo, W., Vreugdenhil, M., 2020. Does ASCAT observe the spring reactivation in temperate deciduous broadleaf forests? Remote Sensing of Environment 250. https://doi.org/10.1016/j.rse.2020.112042

Xaver, A., Zappa, L., Rab, G., Pfeil, I., Vreugdenhil, M., Hemment, D., Arnoud Dorigo, W., 2020. Evaluating the suitability of the consumer low-cost Parrot Flower Power soil moisture sensor for scientific environmental applications. Geoscientific Instrumentation, Methods and Data Systems 9, 117–139. https://doi.org/10.5194/gi-9-117-2020

Hollaus, M., Vreugdenhil, M., 2019. Radar Satellite Imagery for Detecting Bark Beetle Outbreaks in Forests. Current Forestry Reports 5, 240–250. https://doi.org/10.1007/s40725-019-00098-z

Steele-Dunne, S.C., Hahn, S., Wagner, W., Vreugdenhil, M., 2019. Investigating vegetation water dynamics and drought using Metop ASCAT over the North American Grasslands. Remote Sensing of Environment 224, 219–235. https://doi.org/10.1016/j.rse.2019.01.004

Teubner, I.E., Forkel, M., Camps-Valls, G., Jung, M., Miralles, D.G., Tramontana, G., van der Schalie, R., Vreugdenhil, M., Mösinger, L., Dorigo, W.A., 2019. A carbon sink-driven approach to estimate gross primary production from microwave satellite observations. Remote Sensing of Environment 229, 100–113. https://doi.org/10.1016/j.rse.2019.04.022

Teubner, I.E., Forkel, M., Jung, M., Liu, Y.Y., Miralles, D.G., Parinussa, R., van der Schalie, R., Vreugdenhil, M., Schwalm, C.R., Tramontana, G., Camps-Valls, G., Dorigo, W.A., 2018. Assessing the relationship between microwave vegetation optical depth and gross primary production. International Journal of Applied Earth Observation and Geoinformation 65, 79–91. https://doi.org/10.1016/j.jag.2017.10.006

Pfeil, I., Vreugdenhil, M., Hahn, S., Wagner, W., Strauss, P., Blöschl, G., 2018. Improving the seasonal representation of ASCAT soil moisture and vegetation dynamics in a temperate climate. Remote Sensing 10. https://doi.org/10.3390/rs10111788

Greifeneder, F., Notarnicola, C., Hahn, S., Vreugdenhil, M., Reimer, C., Santi, E., Paloscia, S., Wagner, W., 2018. The Added Value of the VH/VV Polarization-Ratio for Global Soil Moisture Estimations from Scatterometer Data. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 11, 3668–3679. https://doi.org/10.1109/JSTARS.2018.2865185

Rüdiger, C., Monerris, A., McJannet, D., Renzullo, L., Vreugdenhil, M., Wagner, W., 2018. Comparison of different high-resolution soil moisture products across an agricultural landscape in south-eastern Australia. Presented at the International Geoscience and Remote Sensing Symposium (IGARSS), pp. 3727–3730. https://doi.org/10.1109/IGARSS.2018.8518208

Colliander, A., Jackson, T.J., Bindlish, R., Chan, S., Das, N., Kim, S.B., Cosh, M.H., Dunbar, R.S., Dang, L., Pashaian, L., Asanuma, J., Aida, K., Berg, A., Rowlandson, T., Bosch, D., Caldwell, T., Caylor, K., Goodrich, D., al Jassar, H., Lopez-Baeza, E., Martínez-Fernández, J., González-Zamora, A., Livingston, S., McNairn, H., Pacheco, A., Moghaddam, M., Montzka, C., Notarnicola, C., Niedrist, G., Pellarin, T., Prueger, J., Pulliainen, J., Rautiainen, K., Ramos, J., Seyfried, M., Starks, P., Su, Z., Zeng, Y., van der Velde, R., Thibeault, M., Dorigo, W., Vreugdenhil, M., Walker, J.P., Wu, X., Monerris, A., O’Neill, P.E., Entekhabi, D., Njoku, E.G., Yueh, S., 2017. Validation of SMAP surface soil moisture products with core validation sites. Remote Sensing of Environment 191, 215–231. https://doi.org/10.1016/j.rse.2017.01.021

Hahn, S., Reimer, C., Vreugdenhil, M., Melzer, T., Wagner, W., 2017. Dynamic Characterization of the Incidence Angle Dependence of Backscatter Using Metop ASCAT. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 10, 2348–2359. https://doi.org/10.1109/JSTARS.2016.2628523

Kasse, C., Van Balen, R.T., Bohncke, S.J.P., Wallinga, J., Vreugdenhil, M., 2017. Climate and base-level controlled fluvial system change and incision during the last glacial-interglacial transition, Roer river, the Netherlands - Western Germany. Geologie en Mijnbouw/Netherlands Journal of Geosciences 96, 71–92. https://doi.org/10.1017/njg.2016.50

Blöschl, G., Blaschke, A.P., Broer, M., Bucher, C., Carr, G., Chen, X., Eder, A., Exner-Kittridge, M., Farnleitner, A., Flores-Orozco, A., Haas, P., Hogan, P., Kazemi Amiri, A., Oismüller, M., Parajka, J., Silasari, R., Stadler, P., Strauss, P., Vreugdenhil, M., Wagner, W., Zessner, M., 2016. The Hydrological Open Air Laboratory (HOAL) in Petzenkirchen: A hypothesis-driven observatory. Hydrology and Earth System Sciences 20, 227–255. https://doi.org/10.5194/hess-20-227-2016

Franz, T.E., Wahbi, A., Vreugdenhil, M., Weltin, G., Heng, L., Oismueller, M., Strauss, P., Dercon, G., Desilets, D., 2016. Using cosmic-ray neutron probes to monitor landscape scale soil water content in mixed land use agricultural systems. Applied and Environmental Soil Science 2016. https://doi.org/10.1155/2016/4323742

Santi, E., Paloscia, S., Pettinato, S., Notarnicola, C., Greifeneder, F., Hahn, S., Wagner, W., Vreugdenhil, M., Reimer, C., 2015. Developing an operational algorithm based on ANN for the retrieval of SMC from the incoming metop SCA mission. Presented at the International Geoscience and Remote Sensing Symposium (IGARSS), pp. 2024–2027. https://doi.org/10.1109/IGARSS.2015.7326196

Dorigo, W.A., Xaver, A., Vreugdenhil, M., Gruber, A., Hegyiová, A., Sanchis-Dufau, A.D., Zamojski, D., Cordes, C., Wagner, W., Drusch, M., 2013. Global automated quality control of in situ soil moisture data from the International Soil Moisture Network. Vadose Zone Journal 12. https://doi.org/10.2136/vzj2012.0097


Type Title Semester Hours
VO Microwave Remote Sensing 2021W 2.0
VO Introduction to Earth Observation 2021W 1.0
PR Interdisciplinary Project in Data Science 2021W 4.0
PR Bachelor Thesis for Environmental Engineering 2021W 10.0
SE Seminar of Geosciences (Photogrammetry and Remote Sensing) 2021W 2.0