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  • BB

  • Development of Monsoonal Rainfall Intensity-Duration-Frequency (IDF) Relationship and Empirical Model for Data-Scarce SituationsThe Case of the Central-Western Hills (Panchase Region) of Nepal

    • Authors: Devkota S.;  Advisor: -;  Participants: Shakya N.M.; Sudmeier-Rieux K.; Jaboyedoff M.; Westen C.J.V; Mcadoo B.G.; Adhikari A. (2018.)

  • This study explored the rainfall variability and possibility to establish IDF relationships in data-scarce situations, such as in the Central-Western hills of Nepal, one of the highest rainfall zones of the country (~4500 mm annually), which was chosen for this study. Homogeneous daily rainfall series of 8 stations, available from the government’s meteorological department, were analyzed by grouping them into hydrological years. The monsoonal daily rainfall was disaggregated to hourly synthetic series in a stochastic environment. Utilizing the historical statistical characteristics of rainfall, a disaggregation model was parameterized and implemented in HyetosMinute, software that disaggregates daily rainfall to finer time resolution.
  • BB

  • Development and analysis of spring plant phenology products36 years of 1-km grids over the conterminous US

    • Authors: Izquierdo-Verdiguier E.;  Advisor: -;  Participants: Zurita-Milla R.; Ault T.R.; Schwartz M.D. (2018.)

  • The spatial analysis shows a significantly delayed spring onset in the northern US whereas in the western and the Great Lakes region, spring onset advances. The mean temporal variabilities of the indices were analyzed for the nine major climatic regions of the US and results showed a clear division into three main groups: early, average and late spring onset. Finally, the region belonging to each group was mapped. These examples show the potential of our four phenological products to improve understanding of the responses of ecosystems to a changing climate.
  • BB

  • Towards UAV-based Land Tenure Data Acquisition in RwandaNeeds Assessment and Technology Response

    • Authors: Stöcker C.;  Advisor: -;  Participants: Ho S.; Koeva M.; Nkerabigwi J.; Schmidt C.; Zevenbergen J.; Bennett R. (2018.)

  • This study sheds light on the needs assessment and design process of UAV-based data acquisition workflows and reveals results of data collection activities and initial UAV test flights in Rwanda. Insights into operational challenges and data quality measures are presented. The paper concludes that the tool of UAV-based data collection seems to offer an answer to the majority of the expressed needs which were assessed with the NGT method. However, the realization of the test flights also reveals three specific challenges that have to be addressed before UAVs can be used for large scale mapping in Rwanda.
  • BB

  • Feature Relevance Assessment Of Multispectral Airborne Lidar Data For Tree Species Classification

    • Authors: Amiri N.;  Advisor: -;  Participants: Heurich M.; Krzystek P.; Skidmore A.K. (2018.)

  • Our study is conducted using 586 ground measured single trees from 20 sample plots in the Bavarian Forest National Park, in Germany. Due to lack of reference data for some rare species, we focused on four classes of species. The results show an improvement between 4-10 pp for the tree species classification by using MLS data in comparison to a single wavelength based approach. A cross validated (15-fold) accuracy of 0.75 can be achieved when all feature sets from three different spectral channels are used. Our results cleary indicates that the use of MLS point clouds has great potential to improve detailed forest species mapping.
  • BB

  • The role of land records in support of post-conflict state buildingThe case of Rwanda

    • Authors: Todorovski D.;  Advisor: -;  Participants: Manirakiza J.G.; Zevenbergen J.; Boerboom L. (2018.)

  • Based on a case study conducted in Rwanda, firstly the type, the format and the status of land records are discovered, and then those are related with the process of post-conflict state building. This relation is explored in depth in order to determine and describe the role of land records in support of post-conflict state building. Here specific attention is paid to the role that land records have in land dispute resolution in such contexts. Findings from this paper shows that a strong relation exists and that land records play a positive role in support of the postconflict state building.
  • BB

  • Analysis of soil hydraulic and thermal properties for land surface modeling over the Tibetan Plateau

    • Authors: Zhao H.;  Advisor: -;  Participants: Zeng Y.; Lv S.; Su Z. (2018.)

  • Results show that porosity and SHP and STP differ across the climate zones and strongly depend on soil texture. In particular, it is proposed that gravel impact on porosity and SHP and STP are both considered in the arid zone and in deep layers of the semi-arid zone. Parameterization schemes for porosity, SHP and STP are investigated and compared with measurements taken. To determine the SHP, including soil water retention curves (SWRCs) and hydraulic conductivities, the pedotransfer functions (PTFs) developed by Cosby et al. (1984) (for the Clapp–Hornberger model) and the continuous PTFs given by Wösten et al. (1999) (for the Van Genuchten–Mualem model) are recommended.
  • BB

  • Mapping and gap analysis on antimicrobial resistance surveillance systems in Kenya, Tanzania, Uganda and Zambia

    • Authors: Matee, Mecky;  Advisor: -;  Participants: Mshana, Stephen E.; Mtebe, Majigo; Komba, Erick Vitus; Moremi, Nyambura; Lutamwa, Julius; Kapona, Otrida; Sekamatte, Musa; Mboera, Leonard E. G. (2023)

  • Antimicrobial resistance is a global problem and involve pathogens which have the potential to move between food producing animals and humans by direct exposure or through the food chain or the environment. The objective of this study was to determine the performance in addressing antimicrobial resistance in Kenya, Tanzania, Uganda and Zambia. Desk review and in-depth interviews were employed for data collection. Interviews were conducted with national antimicrobial resistance focal officials.
  • BB

  • Delirium detection in hospitalized adults: the performance of the 4 'A's Test and the modified Confusion Assessment Method for the Emergency Department. A comparison study

    • Authors: Muser, Olga;  Advisor: -;  Participants: Seiler, Kevin; Bachnick, Stefanie; Gehri, Beatrice; Zúñiga, Franziska; Hasemann, Wolfgang (2022)

  • During the study period, 211 patients were hospitalized on the six wards, of whom 116 were included in the study. A total of 95 patients were excluded due to, for instance, refusal to participate (n = 29), admission after assessment (n = 22) or absence of patients (n = 19) (Fig. 2).The median age of patients was 73.0 years (interquartile Q1 56.3, Q3 83.0) and 49 (42.2%) of the patients were women. Pre-existing dementia was present in 11 (9.5%) patients. A total of 8 out of 116 patients (6.9%) had delirium according to the gold standard, the mCAM-ED, and 16 (13.8%) had delirium according to the 4AT. Subgroup analysis of patients with delirium and patients without delirium showed no statistically significant difference in the development of delirium in respect to age (U = −1.799, p = ...