%0 Journal Article %1 li2017interannual %A Li, Yuefeng %A Xiao, Ziniu %A Shi, Wenjing %A Zhong, Qi %A Wang, Qiguang %A Li, Huanlian %D 2017 %J Frontiers of Earth Science %K ENSO MyENSOspinWork lengthofday spin %N 4 %P 751--764 %R 10.1007/s11707-016-0602-3 %T Interannual variations in length of day and atmospheric angular momentum, and their seasonal associations with El Niño/Southern Oscillation-like sea surface temperature patterns %U https://doi.org/10.1007/s11707-016-0602-3 %V 11 %X This study examines the seasonal connections between the interannual variations in LOD (length of day)/AAMglobe (the relative atmospheric angular momentum for the whole globe) and the ENSO-like SST (El Niño/Southern Oscillation-like sea surface temperature) pattern and corresponding zonal and vertical circulations. Consistent with previous studies, the ENSO-like SST impact the following season LOD/AAMglobe, with the strongest correlations in DJF (December, January, and February), when it is likely to be the peak El Niño/La Niña period. Lag correlations between the interannual variations in LOD/AAMglobe and surface temperature, and the interannual variations in LOD and both zonal circulation and vertical airflow around the equator, consistently indicate that the LOD/AAMglobe reflect the potential impacts of variations in the Earth's rotation rate on the following season's sea surface temperatures (SST) over the tropical central and eastern Pacific (where the ENSO-like SST pattern is located). Moreover, the centers of strongest variation in the AAMcolumn (the relative atmospheric angular momentum for an air column and the unit mass over a square meter) are located over the mid-latitudinal North Pacific in DJF and MAM (March, April, and May), and over the mid-latitudinal South Pacific in JJA (June, July, and August) and SON (September, October, and November). This suggests that the AAMcolumn over the mid-latitudinal Pacific around 30°N (30°S) dominate the modulation of Earth's rotation rate, and then impact the variations in LOD during DJF and MAM (JJA and SON).

@article{li2017interannual, abstract = {This study examines the seasonal connections between the interannual variations in LOD (length of day)/AAMglobe (the relative atmospheric angular momentum for the whole globe) and the ENSO-like SST (El Ni{\~{n}}o/Southern Oscillation-like sea surface temperature) pattern and corresponding zonal and vertical circulations. Consistent with previous studies, the ENSO-like SST impact the following season LOD/AAMglobe, with the strongest correlations in DJF (December, January, and February), when it is likely to be the peak El Ni{\~{n}}o/La Ni{\~{n}}a period. Lag correlations between the interannual variations in LOD/AAMglobe and surface temperature, and the interannual variations in LOD and both zonal circulation and vertical airflow around the equator, consistently indicate that the LOD/AAMglobe reflect the potential impacts of variations in the Earth's rotation rate on the following season's sea surface temperatures (SST) over the tropical central and eastern Pacific (where the ENSO-like SST pattern is located). Moreover, the centers of strongest variation in the AAMcolumn (the relative atmospheric angular momentum for an air column and the unit mass over a square meter) are located over the mid-latitudinal North Pacific in DJF and MAM (March, April, and May), and over the mid-latitudinal South Pacific in JJA (June, July, and August) and SON (September, October, and November). This suggests that the AAMcolumn over the mid-latitudinal Pacific around 30{\textdegree}N (30{\textdegree}S) dominate the modulation of Earth's rotation rate, and then impact the variations in LOD during DJF and MAM (JJA and SON).}, added-at = {2018-09-17T15:09:53.000+0200}, author = {Li, Yuefeng and Xiao, Ziniu and Shi, Wenjing and Zhong, Qi and Wang, Qiguang and Li, Huanlian}, biburl = {https://www.bibsonomy.org/bibtex/2cc1852783dd33085438e5909545899bb/pbett}, day = 01, description = {Interannual variations in length of day and atmospheric angular momentum, and their seasonal associations with El Niño/Southern Oscillation-like sea surface temperature patterns | SpringerLink}, doi = {10.1007/s11707-016-0602-3}, interhash = {65a057c9800a72bb2e0b1b32d0d32974}, intrahash = {cc1852783dd33085438e5909545899bb}, issn = {2095-0209}, journal = {Frontiers of Earth Science}, keywords = {ENSO MyENSOspinWork lengthofday spin}, month = dec, number = 4, pages = {751--764}, timestamp = {2020-04-15T09:29:49.000+0200}, title = {Interannual variations in length of day and atmospheric angular momentum, and their seasonal associations with El Ni{\~{n}}o/Southern Oscillation-like sea surface temperature patterns}, url = {https://doi.org/10.1007/s11707-016-0602-3}, volume = 11, year = 2017 }