@misc{12859, abstract = {{One of the greatest challenges facing environmental science is to better understand the impacts of predicted future changes in the terrestrial hydrological cycle. It has been recognized that human activities play a key role and must therefore be considered in future climate simulations. The representation of anthropization in land surface schemes within global earth system models is at a relatively nascent stage and must be improved for more accurate future projections of water resources. The understanding of the impact of anthropogenic processes has been hampered by the lack of consistent and extensive observations. Here, we present the Land surface Interactions with the Atmosphere over the Iberian Semi-arid Environment (LIAISE) project field campaign which brought together ground-based (surface energy budget estimated at 7 sites, 269 radio soundings made at 2 sites and multiple remote sensing instruments for profiling the lower atmosphere), airborne measurements (3 airplanes and numerous drones measuring surface and atmospheric properties) and satellite data (to derive estimates of irrigation timing, soil moisture, evapotranspiration and surface temperature) to improve our understanding of key natural and anthropogenic land processes and boundary layer feedbacks. The study area is in the Ebro basin of northeastern Spain in a hot, dry Mediterranean climate, with a sharp demarcation between a vast intensively irrigated region and a much drier rainfed zone to the east. Analysis of the observations reveal strong surface heterogeneities of evapotranspiration within the irrigated zone (differences upwards of approximately 7 mm day-1 between fields), linked to the crop type, vegetation phenology and soil moisture, all of which were modulated by irrigation. The significant surface flux differences between the irrigated and rainfed zones were found to result in strongly contrasting atmospheric boundary layer properties (between 2 supersites​ separated by 14 km) extending upwards through the lowest several km of the atmosphere.}}, author = {{Boone, Aaron and Bellvert, Joaquim and Best, Martin and Brooke, Jennifer K. and Canut-Rocafort, Guylaine and Cuxart, Joan and Hartogensis, Oscar and Moigne, Patrick Le and Miró, Josep Ramon and Polcher, Jan and Price, Jeremy and Seguí, Pere Quintana and Bech, Joan and Bezombes, Yannick and Branch, Oliver and Cristóbal, Jordi and Dassas, Karin and Fanise, Pascal and Gibert, Fabien and Goulas, Yves and Groh, Jannis and Hanus, Jan and Hmimina, Gabriel and Jarlan, Lionel and Kim, Ed and Dantec, Valérie Le and Page, Michel Le and Lohou, Fabienne and Lothon, Marie and Mangan, Mary Rose and Martí, Belén and Martínez-Villagrasa, Daniel and McGregor, James and Kerr-Munslow, Amanda and Ouaadi, Nadia and Philibert, Alban and Quiros-Vargas, Juan and Rascher, Uwe and Siegmann, Bastian and Udina, Mireia and Vial, Antoine and Wrenger, Burkhard and Wulfmeyer, Volker and Zribi, Mehrez}}, booktitle = {{Journal of the European Meteorological Society}}, issn = {{2950-6301}}, keywords = {{Anthropization, Irrigation, Agriculture, Field campaign, Surface energy budget, Evapotranspiration, Land–atmosphere interactions, Ebro basin}}, number = {{Dez.}}, publisher = {{Elsevier BV}}, title = {{{The Land Surface Interactions with the Atmosphere over the Iberian Semi-Arid Environment (LIAISE) field campaign}}}, doi = {{10.1016/j.jemets.2025.100007}}, volume = {{2}}, year = {{2025}}, } @misc{12228, abstract = {{The Qinghai-Tibet Plateau possesses the largest alpine lake system, which plays a crucial role in the land-atmosphere interaction. We report first observations on the thermal and radiation regime under ice of the largest freshwater lake of the Plateau. The results reveal that freshwater lakes on the Tibetan Plateau fully mix under ice. Due to strong solar heating, water temperatures increase above the maximum density value 1–2 months before the ice break, forming stable thermal stratification with subsurface temperatures >6°C. The resulting heat flow from water to ice makes a crucial contribution to ice cover melt. After the ice breakup, the accumulated heat is released into the atmosphere during 1–2 days, increasing lake-atmosphere heat fluxes up to 500 W m−2. The direct biogeochemical consequences of the deep convective mixing are aeration of the deep lake waters and upward supply of nutrients to the upper photic layer.}}, author = {{Kirillin, Georgiy B and Shatwell, Tom and Wen, Lijuan}}, booktitle = {{Geophysical Research Letters}}, issn = {{1944-8007}}, keywords = {{alpine lakes, extreme environments, ake-atmosphere interaction, lake ice, radiatively driven convection, winter limnology}}, number = {{14}}, publisher = {{Wiley}}, title = {{{Ice‐Covered Lakes of Tibetan Plateau as Solar Heat Collectors}}}, doi = {{10.1029/2021gl093429}}, volume = {{48}}, year = {{2021}}, } @inbook{4829, abstract = {{In this paper, we address three major issues, look at their interaction and combination and present our results on how to arrive at solutions for these issues. The issues are: 1) supporting informal communication and atmosphere in organisations, 2) the role and potential of ambient displays in future work environments, and 3) the combination of mostly static artefacts that are integrated in the architectural environment with mobile devices carried by people. Our results can be considered as steps towards the design and realization of what we call “social architectural spaces” in the context of future work environments. These environments will be populated with a range of different smart artefacts that are designed to facilitate awareness and notification as well as informal communication. We address a range of spaces in office buildings including public spaces, e.g., in the hallway, the foyer, and the cafeteria that have not been the focus of research so far. In particular, we present two artefacts: the Hello.Wall, a wall-size large ambient display, and the ViewPort, a mobile handheld device. They are interacting with each other via wireless networks and different types of sensing technology. The artefacts and the software were developed in the EU-funded “Disappearing Computer”- project “Ambient Agoras: Dynamic Information Clouds in a Hybrid Worlds”.}}, author = {{Streitz, Norbert and Prante, Thorsten and Röcker, Carsten and van Alphen, Daniel and Magerkurth, Carsten and Stenzel, Richard and Plewe, D. A.}}, booktitle = {{Public and Situated Displays Social and Interactional Aspects of Shared Display Technologies}}, editor = {{O'Hara, K. and Perry, Mark and Churchill, E. and Russell, D.}}, isbn = {{978-90-481-6449-3 }}, keywords = {{ambient displays, mobile devices, informal communication, atmosphere, social architectural space, ubiquitous computing}}, pages = {{387 – 409}}, publisher = {{Springer }}, title = {{{Ambient Displays and Mobile Devices for the Creation of Social Architectural Spaces: Supporting Informal Communication and Social Awareness in Organizations}}}, doi = {{10.1007/978-94-017-2813-3_16}}, volume = {{2}}, year = {{2003}}, }