Quantitative analysis of soil chemical properties with diffuse reflectance spectrometry and partial least-square regression: A feasibility study

T Udelhoven, C Emmerling, T Jarmer - Plant and soil, 2003 - Springer
Soil chemical properties from different locations in the Trier region, Rhineland-Palatinate,
SW Germany were evaluated using VIS/NIR reflectance spectrometry (ASD FieldSpec-II …

Linking spatial patterns of soil organic carbon to topography—A case study from south-eastern Spain

W Schwanghart, T Jarmer - Geomorphology, 2011 - Elsevier
A key uncertainty in our understanding of the global carbon cycle is the lateral movement of
carbon through the terrestrial system. Soils are the major storage of carbon in the terrestrial …

[HTML][HTML] High-resolution UAV-based hyperspectral imagery for LAI and chlorophyll estimations from wheat for yield prediction

M Kanning, I Kühling, D Trautz, T Jarmer - Remote Sensing, 2018 - mdpi.com
The efficient use of nitrogen fertilizer is a crucial problem in modern agriculture. Fertilization
has to be minimized to reduce environmental impacts but done so optimally without …

Comparison of different regression models and validation techniques for the assessment of wheat leaf area index from hyperspectral data

B Siegmann, T Jarmer - International journal of remote sensing, 2015 - Taylor & Francis
Leaf area index (LAI) is one of the most important plant parameters when observing agricultural
crops and a decisive factor for yield estimates. Remote-sensing data provide spectral …

Comparative classification analysis of post-harvest growth detection from terrestrial LiDAR point clouds in precision agriculture

K Koenig, B Höfle, M Hämmerle, T Jarmer… - ISPRS journal of …, 2015 - Elsevier
In precision agriculture, detailed geoinformation on plant and soil properties plays an
important role, eg, in crop protection or the application of fertilizers. This paper presents a …

[HTML][HTML] UAV-Based RGB Imagery for Hokkaido Pumpkin (Cucurbita max.) Detection and Yield Estimation

…, I Kühling, D Trautz, M Kohlbrecher, T Jarmer - Sensors, 2020 - mdpi.com
Pumpkins are economically and nutritionally valuable vegetables with increasing popularity
and acreage across Europe. Successful commercialization, however, require detailed pre-…

[PDF][PDF] Retrieval of wheat bio-physical attributes from hyperspectral data and SAILH+ PROSPECT radiative transfer model

C Atzberger, T Jarmer, M Schlerf, B Kötz… - Proceedings of the 3rd …, 2003 - Citeseer
A simple soil reflectance parameterization was empirically calibrated and integrated into the
SAILH+ PROSPECT canopy reflectance model to assess simultaneously LAI and canopy …

[HTML][HTML] Systematic approach for remote sensing of historical conflict landscapes with UAV-based laserscanning

M Storch, T Jarmer, M Adam, N de Lange - Sensors, 2021 - mdpi.com
In order to locate historical traces, drone-based Laserscanning has become increasingly
popular in archaeological prospection and historical conflict landscapes research. The low …

[HTML][HTML] Convolutional Neural Network Maps Plant Communities in Semi-Natural Grasslands Using Multispectral Unmanned Aerial Vehicle Imagery

M Pöttker, K Kiehl, T Jarmer, D Trautz - Remote Sensing, 2023 - mdpi.com
Semi-natural grasslands (SNGs) are an essential part of European cultural landscapes. They
are an important habitat for many animal and plant species and offer a variety of ecological …

Estimating LAI from winter wheat using UAV data and CNNs

L Wittstruck, T Jarmer, D Trautz… - IEEE Geoscience and …, 2022 - ieeexplore.ieee.org
With the advent of high-resolution unmanned aerial vehicle (UAV) data and advancing
methods of deep learning, new opportunities have emerged in remote sensing to assess …