The Future of Atmospheric Boundary Layer Observing, Understanding, and Modeling Proceedings of a Workshop (2018) / Chapter Skim
Currently Skimming:
Science and Applications Drivers for Boundary Layer Observations
Science and Applications Drivers for Boundary Layer Observations
Pages 9-16
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 9... ...
Parameter adjustments within models can lead to improvements, but it can be challenging to know which parameters to adjust and to understand the implications beyond those specific parts of the model. To highlight this, Ruby Leung discussed examples of Earth system model biases related to surface and BL processes, including dry bias in the western tropical Pacific and Amazon regions and low bias in oceanic stratocumulus clouds.
|
From page 10... ...
Scientists currently often rely on mean temperature and precipitation information, but remote sensing products with high temporal resolution might provide data that lead to advances in understanding. Possibilities for research advances include better ability to capture temporal complexity in environmental variables and to quantify biodiversity and biodiversity variables using remotely sensed data.
|
From page 11... ...
Surface moisture and water status define a surface hydrospheric state that is key to linking terrestrial water and energy cycles, and is a principal determinant of the terrestrial carbon cycle. Current and planned Earth science remote sensing missions offer a developing array of datasets supporting mapping and monitoring of land surface state variables associated with BL characterization.
|
From page 12... ...
Progress has been made in the area of ground-based remote sensing, and Doppler wind lidars in particular provide useful data. Integrated approaches using observations and models, combining spatial and temporal information, are particularly important when dealing with complex terrain (see Figure 4)
|
From page 13... ...
Blue arrows represent nocturnal processes and red arrows represent daytime phenomena associated with convection. Meso to microscale phenomena are shown.
|
From page 14... ...
PANEL 1.5 -- BOUNDARY LAYER MODELING AND PARAMETERIZATION There is a need to go beyond traditional BL parameterization to properly model, for example, embedded organized structures due to roll vortices and the impacts of roll vortices on sea surface fluxes, surface driven organized structures due to ocean waves, and processes within flows driven by complex topography and stratification. In this panel, speakers noted that waves are critically important; they are the roughness elements that support momentum, heat, and mass exchange between the atmosphere and the ocean.
|
From page 15... ...
People live in the BL, and it is of particular importance for a variety of applications, including understanding evolution of hazardous pollutant concentrations and health impacts as well as air quality predictions. BL characteristics are critical for understanding, interpreting, and predicting chemical composition and pollutant emissions (for example, wildfires and dust)
|
From page 16... ...
16 The Future of Atmospheric Boundary Layer Observing, Understanding, and Modeling FIGURE 5. Column NO2 emissions from satellite data in 2005.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.