Now showing items 1-20 of 2022

    • The annual cycle of air-sea fluxes in the northwest tropical Atlantic 

      Bigorre, Sebastien P.; Plueddemann, Albert J. (Frontiers Media, 2021-01-15)
      In this article we analyze 11 years of near-surface meteorology using observations from an open-ocean surface mooring located in the Northwestern Tropical Atlantic (51°W, 15°N). Air-sea fluxes of heat, freshwater, and ...
    • The influence of an eddy in the success rates and distributions of passively advected or actively swimming biological organisms crossing the continental slope 

      Rypina, Irina I.; Pratt, Lawrence J.; Entner, Samuel; Anderson, Amanda; Cherian, Deepak A. (American Meteorological Society, 2020-06-29)
      The Lagrangian characteristics of the surface flow field arising when an idealized, anticyclonic, mesoscale, isolated deep-ocean eddy collides with continental slope and shelf topography are explored. In addition to fluid ...
    • Near-surface salinity reveals the oceanic sources of moisture for Australian precipitation through atmospheric moisture transport 

      Rathore, Saurabh; Bindoff, Nathaniel L.; Ummenhofer, Caroline C.; Phillips, Helen E.; Feng, Ming (American Meteorological Society, 2020-07-01)
      The long-term trend of sea surface salinity (SSS) reveals an intensification of the global hydrological cycle due to human-induced climate change. This study demonstrates that SSS variability can also be used as a measure ...
    • The evolution of a buoyant river plume in response to a pulse of high discharge from a small midlatitude river 

      Lemagie, Emily; Lerczak, James A. (American Meteorological Society, 2020-07-01)
      A unique feature of small mountainous rivers is that discharge can be elevated by an order of magnitude during a large rain event. The impact of time-varying discharge on freshwater transport pathways and alongshore ...
    • Cancelation of deglacial thermosteric sea level rise by a barosteric effect 

      Gebbie, Geoffrey A. (American Meteorological Society, 2020-12-01)
      Sea level rise over the last deglaciation is dominated by the mass of freshwater added to the oceans by the melting of the great ice sheets. While the steric effect of changing seawater density is secondary over the last ...
    • The Western Alboran Gyre: an analysis of its properties and its exchange with surrounding water 

      Brett, Genevieve; Pratt, Lawrence J.; Rypina, Irina I.; Sánchez-Garrido, José C. (American Meteorological Society, 2020-11-18)
      One of the largest and most persistent features in the Alboran Sea is the Western Alboran Gyre (WAG), an anticyclonic recirculation bounded by the Atlantic Jet (AJ) to the north and the Moroccan coast to the south. Eulerian ...
    • A survival analysis of the gulf stream warm core rings 

      Silva, E. Nishchitha S.; Gangopadhyay, Avijit; Fay, Gavin; Welandawe, Manushi K. V.; Gawarkiewicz, Glen G.; Silver, Adrienne M.; Monim, Mahmud-Ul-Hasan; Clark, Jenifer (American Geophysical Union, 2020-10-14)
      Survival of Gulf Stream (GS) warm core rings (WCRs) was investigated using a census consisting of a total of 961 rings formed during the period 1980–2017. Kaplan‐Meier survival probability and Cox hazard proportional models ...
    • Interannual and seasonal asymmetries in gulf stream ring formations from 1980 to 2019 

      Silver, Adrienne M.; Gangopadhyay, Avijit; Gawarkiewicz, Glen G.; Silva, E. Nishchitha S.; Clark, Jenifer (Nature Research, 2021-01-26)
      As the Gulf Stream separates from the coast, it sheds both Warm and Cold Core Rings between 75∘ and 55∘W. We present evidence that this ring formation behavior has been asymmetric over both interannual and seasonal ...
    • Hydraulics and mixing of the deep overflow in the Lifamatola Passage of the Indonesian Seas 

      Tan, Shuwen; Pratt, Lawrence J.; Yuan, Dongliang; Li, Xiang; Wang, Zheng; Li, Yao; Corvianawatie, Corry; Surinati, Dewi; Budiman, Asep S.; Bayhaqi, Ahmad (American Meteorological Society, 2020-09-01)
      Hydrographic measurements recently acquired along the thalweg of the Lifamatola Passage combined with historical moored velocity measurements immediately downstream of the sill are used to study the hydraulics, transport, ...
    • Quasi-biweekly mode of the Asian summer monsoon revealed in Bay of Bengal surface observations 

      Lekha, J. Sree; Lucas, Andrew J.; Sukhatme, Jai; Joseph, Jossia K.; Ravichandran, M.; Kumar, N. Suresh; Farrar, J. Thomas; Sengupta, Debasis (American Geophysical Union, 2020-11-16)
      Asian summer monsoon has a planetary‐scale, westward propagating “quasi‐biweekly” mode of variability with a 10–25 day period. Six years of moored observations at 18°N, 89.5°E in the north Bay of Bengal (BoB) reveal distinct ...
    • Sea surface salinity seasonal variability in the tropics from satellites, gridded in situ products and mooring observations 

      Bingham, Frederick; Brodnitz, Susannah; Yu, Lisan (MDPI, 2020-12-31)
      Satellite observations of sea surface salinity (SSS) have been validated in a number of instances using different forms of in situ data, including Argo floats, moorings and gridded in situ products. Since one of the most ...
    • Use of observing system simulation experiments in the United States 

      Zeng, Xubin; Atlas, Robert; Birk, Ronald J.; Carr, Frederick H.; Carrier, Matthew J.; Cucurull, Lidia; Hooke, William H.; Kalnay, Eugenia; Murtugudde, Raghu; Posselt, Derek J.; Russell, Joellen; Tyndall, Daniel P.; Weller, Robert A.; Zhang, Fuqing (American Meteorological Society, 2020-08-01)
      The NOAA Science Advisory Board appointed a task force to prepare a white paper on the use of observing system simulation experiments (OSSEs). Considering the importance and timeliness of this topic and based on this white ...
    • Coherent pathways for vertical transport from the Surface Ocean to Interior 

      Mahadevan, Amala; Pascual, Ananda; Rudnick, Daniel L.; Ruiz, Simon; Tintoré, Joaquín; D'Asaro, Eric A. (American Meteorological Society, 2020-11-01)
      A long-standing challenge in oceanography is the observing, modeling, and prediction of vertical transport, which links the sunlit and atmospherically mediated surface boundary layer with the deeper ocean. Vertical motions ...
    • Tracking air-sea exchange and upper-ocean variability in the Indonesian-Australian basin during the onset of the 2018/19 Australian summer monsoon 

      Feng, Ming; Duan, Yongliang; Wijffels, Susan E.; Hsu, Je-Yuan; Li, Chao; Wang, Huiwu; Yang, Yang; Shen, Hong; Liu, Jianjun; Ning, Chunlin; Yu, Weidong (American Meteorological Society, 2020-08-01)
      Sea surface temperatures (SSTs) north of Australia in the Indonesian–Australian Basin are significantly influenced by Madden–Julian oscillation (MJO), an eastward-moving atmospheric disturbance that traverses the globe in ...
    • Pseudo-nitzschia in the Gulf of Maine: investigating bloom dynamics, species introduction, and climate change implications with observations and models 

      Clark, Suzanna (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2021-01)
      The apparent global increase in harmful algal blooms (HABs) includes Pseudo-nitzschia blooms in the Gulf of Maine, where shellfishery closures can cost millions of dollars. Temperatures in the gulf are warming, which can ...
    • A road map to IndOOS-2 better observations of the rapidly warming Indian Ocean 

      Beal, Lisa M.; Vialard, Jérôme; Roxy, Mathew Koll; Li, Jing; Andres, Magdalena; Annamalai, Hariharasubramanian; Feng, Ming; Han, Weiqing; Hood, Raleigh R.; Lee, Tong; Lengaigne, Matthieu; Lumpkin, Rick; Masumoto, Yukio; McPhaden, Michael J.; Ravichandran, M.; Shinoda, Toshiaki; Sloyan, Bernadette M.; Strutton, Peter G.; Subramanian, Aneesh C.; Tozuka, Tomoki; Ummenhofer, Caroline C.; Unnikrishnan, Shankaran Alakkat; Wiggert, Jerry D.; Yu, Lisan; Cheng, Lijing; Desbruyères, Damien G.; Parvathi, V. (American Meteorological Society, 2020-11-01)
      The Indian Ocean Observing System (IndOOS), established in 2006, is a multinational network of sustained oceanic measurements that underpin understanding and forecasting of weather and climate for the Indian Ocean region ...
    • Mean conditions and seasonality of the West Greenland boundary current system near Cape Farewell 

      Pacini, Astrid; Pickart, Robert S.; Bahr, Frank B.; Torres, Daniel J.; Ramsey, Andree L.; Holte, James W.; Karstensen, Johannes; Oltmanns, Marilena; Straneo, Fiamma; Le Bras, Isabela Astiz; Moore, G. W. K.; de Jong, M. Femke (American Meteorological Society, 2020-09-18)
      The structure, transport, and seasonal variability of the West Greenland boundary current system near Cape Farewell are investigated using a high-resolution mooring array deployed from 2014 to 2018. The boundary current ...
    • Crystal aggregates record the pre-eruptive flow field in the volcanic conduit at Kilauea, Hawaii 

      DiBenedetto, Michelle H.; Qin, Zhipeng; Suckale, Jenny (American Association for the Advancement of Science, 2020-12-04)
      Developing reliable, quantitative conduit models that capture the physical processes governing eruptions is hindered by our inability to observe conduit flow directly. The closest we get to direct evidence is testimony ...
    • Observed eddy-internal wave interactions in the Southern Ocean 

      Cusack, Jesse M.; Brearley, J. Alexander; Naveira Garabato, Alberto C.; Smeed, David A.; Polzin, Kurt L.; Velzeboer, Nick; Shakespeare, Callum J. (American Meteorological Society, 2020-10-01)
      The physical mechanisms that remove energy from the Southern Ocean’s vigorous mesoscale eddy field are not well understood. One proposed mechanism is direct energy transfer to the internal wave field in the ocean interior, ...
    • On the vertical velocity and nutrient delivery in warm core rings 

      Chen, Ke; Gaube, Peter; Pallás-Sanz, Enric (American Meteorological Society, 2020-05-12)
      We examine various contributions to the vertical velocity field within large mesoscale eddies by analyzing multiple solutions to an idealized numerical model of a representative anticyclonic warm core Gulf Stream ring. ...