Forest Ecosystem Monitoring Cooperative(802) 656-0683femc@uvm.eduwww.uvm.edu/femc705 Spear StreetSouth BurlingtonVermont05403United States of AmericaImpacts of Cold-Air Pooling on Northeastern Temperate Forest Structure and FunctionCold-air pooling, the accumulation of cold dense air in low-lying areas, is not well understood, but may have large impacts on forests, especially as the climate warms. Cold-air pooling occurs when radiative surface cooling forms dense, cold air that drains downslope and pools in low-lying areas, creating temperature inversions with the lowest temperatures at valley bottoms, where it would typically be warmer. These inversions likely regulate other key environmental conditions, such as soil temperature, soil moisture, humidity, frost frequency, and winter dynamics. Because local climate patterns in areas prone to cold-air pooling are decoupled from regional climates, they may be buffered from macroscale climate change and therefore serve as microrefugia for species and ecosystem functions. To characterize cold-air pooling across northeastern temperate forests and link cold-air pooling to forest structure and function, we established a unique, cross-scale sensor network in 2021-22 (6 sites, 3 elevational transects per site, 100 plots).Impacts of Cold-Air Pooling on Northeastern Temperate Forest Structure and FunctionD'AmatoAnthonyFosterJaneLandsman-GerjoiMaxwellAdairCarolPastoreMelissaEnglishMarieClassenAiméeCold-air pooling characterization and forest composition, NE, USA2021-06-01This dataset corresponds to a project investigating whether cold-air pooling influences forest composition and function. The data include hourly sub-canopy air temperatures (measured continuously via ibuttons) and forest forest composition data for 48 plots along 9 transects in 3 sites across New England, USA. The temperature data also include surface lapse rates and temperature gradients across transects, as well as a designation indicating the presence or absence of a temperature inversion. We found that sites with the most frequent temperature inversions also displayed vegetation inversions across slopes, with more cold-adapted species at low instead of high elevations.VMC.1812.4017mySQLPastore, Melissa A.; Classen, Aimée T.; D'Amato, Anthony W.; English, Marie E.; Rand, Karin; Foster, Jane R.; Adair, E. Carol. 2024. Frequent and strong cold‐air pooling drives temperate forest composition. Ecology and Evolution. 14(4): e11126. 14 p. https://doi.org/10.1002/ece3.11126./femc/data/archive/project/cold-air-pooling/dataset/deep-valley-hourly-edi-1