Dr Alejandra Sanchez-Franks

Biography

Research Interests
  • Atlantic meridional overturning circulation (AMOC)
  • impacts of climate change on the global oceans
  • sustained ocean monitoring
  • monsoon processes in the tropical Indian Ocean 
PhD students:
  • Anneke Sperling (2023-present; supervisor): Do ocean currents stick together? AMOC proxies and processes
  • Harry Ashton-Key (2023-present; co-supervisor): AMOC and tipping points
  • Jack Giddings (2017-2020; co-supervisor): ocean processes triggering monsoon rainfall
Recent fieldwork:
Education:
  • PhD, Marine and Atmospheric Science (2015), Stony Brook University
  • B. Math, Honours Applied Mathematics (2010), University of Waterloo
Links:

Committee Memberships

Member of the IAPSO executive committee (2019-present), http://iapso.iugg.org 

Chair and founder of the IAPSO Early Career Scientists working group (2018-present), https://www.iapsoecs.org 

Member of the Challenger Society council (2017-2020), https://www.challenger-society.org.uk 

Projects

AtlantiS (co-lead on WP1 - ocean observations; 2024-2029) - Atlantic Climate and Environment Strategic Science
SORTED (PI; 2025-2028) - Subpolar Gyre Observations, models and AI to Resolve Tipping points and provide Early warning Detection
MEZCAL (PI; 2023-2026) - Methods for Extending the horiZontal Coverage of the Amoc Latitudinally and retrospectively
ALPACA (co-I; 2023-2026) - Advancing the Long-range Prediction, Attribution, and forecast Calibration of Amoc and its climate impacts
LEGACY (co-I; 2022-2023) - Labrador Current Governs North Atlantic Climate System?
NEW NORMAL (PI; 2021-2023) - NEar surface Warming in the INdian Ocean and Rainfall Monsoon Anomaly Links
SNAPDRAGON - investigating the dynamics of the Atlantic meridional overturning circulation in the subpolar N. Atlantic
RAPID - programme monitoring the Atlantic meridional overturning circulation from a mooring array at 26N
BoBBLE - the role of Bay of Bengal in South Asian monsoon variability
Profile photo

Publications

Publication year

2025

Publication type

Article

Authors

Joseph, Ligin ORCID: https://orcid.org/0000-0001-6637-0475; Dey, Dipanjan; Skliris, Nikolaos; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Marsh, Robert; Hirschi, Joel ORCID: https://orcid.org/0000-0003-1481-3697; Golla, Sreevathsa ORCID: https://orcid.org/0000-0003-4084-9677. 2025 Warming trend in the western Indian Ocean driven by oceanic transport. Journal of Geophysical Research: Oceans, 131 (1). 10.1029/2025JC022762

Publication year

2025

Publication type

Article

Authors

Sanchez-Franks, A. ORCID: https://orcid.org/0000-0002-4831-5461; Holliday, N. P. ORCID: https://orcid.org/0000-0002-9733-8002; Evans, D. G. ORCID: https://orcid.org/0000-0002-6328-4093; Fried, N.; Tooth, O.; Chafik, L.; Fu, Y.; Li, F.; de Jong, M. F.; Johnson, H. L.. 2024 The Irminger Gyre as a key driver of the subpolar North Atlantic overturning. Geophysical Research Letters, 51 (8). 10.1029/2024GL108457

Publication year

2024

Publication type

Article

Authors

Li, Feili ORCID: https://orcid.org/0000-0002-3073-9813; Fu, Yao; Lozier, M. Susan; Le Bras, Isabela A.; de Jong, M. Femke; Wang, Yuan; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461. 2024 Deep circulation variability through the eastern subpolar North Atlantic. Journal of Climate, 37 (23). 6221-6234. 10.1175/JCLI-D-23-0487.1

Publication year

2024

Publication type

Article

Authors

Asbjørnsen, Helene; Eldevik, Tor; Skrefsrud, Johanne; Johnson, Helen L.; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461. 2024 Observed change and the extent of coherence in the Gulf Stream system. Ocean Science, 20 (3). 799-816. 10.5194/os-20-799-2024

Publication year

2024

Publication type

Article

Authors

Sheehan, Peter M. F.; Matthews, Adrian J.; Webber, Benjamin G. M.; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Klingaman, Nicholas P.; Vinayachandran, P. N.. 2023 On the influence of the Bay of Bengal’s sea surface temperature gradients on rainfall of the South Asian monsoon. Journal of Climate, 36 (18). 6499-6513. 10.1175/JCLI-D-22-0288.1

Publication year

2023

Publication type

Article

Authors

Fox, Alan D.; Handmann, Patricia; Schmidt, Christina; Fraser, Neil; Rühs, Siren; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Martin, Torge; Oltmanns, Marilena ORCID: https://orcid.org/0000-0002-8959-4938; Johnson, Clare; Rath, Willi; Holliday, N. Penny ORCID: https://orcid.org/0000-0002-9733-8002; Biastoch, Arne; Cunningham, Stuart A.; Yashayaev, Igor. 2022 Exceptional freshening and cooling in the eastern subpolar North Atlantic caused by reduced Labrador Sea surface heat loss. Ocean Science, 18 (5). 1507-1533. 10.5194/os-18-1507-2022

Publication year

2022

Publication type

Article

Authors

Phillips, Helen E.; Tandon, Amit; Furue, Ryo; Hood, Raleigh; Ummenhofer, Caroline; Benthuysen, Jessica; Menezes, Viviane; Hu, Shijian; Webber, Ben; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Cherian, Deepak; Shroyer, Emily; Feng, Ming; Wijeskera, Hemantha; Chatterjee, Abhishek; Yu, Lisan; Hermes, Juliet; Murtugudde, Raghu; Tozuka, Tomoki; Su, Danielle; Singh, Arvind; Centurioni, Luca; Prakash, Satya; Wiggert, Jerry. 2021 Progress in understanding of Indian Ocean circulation, variability, air-sea exchange and impacts on biogeochemistry. Ocean Science. 10.5194/os-17-1677-2021

Publication year

2021

Publication type

Article

Authors

Johnson, Gregory C.; Lumpkin, Rick; Alin, Simone R.; Amaya, Dillon J.; Baringer, Molly O.; Boyer, Tim; Brandt, Peter; Carter, Brendan R.; Cetinić, Ivona; Chambers, Don P.; Cheng, Lijing; Collins, Andrew U.; Cosca, Cathy; Domingues, Ricardo; Dong, Shenfu; Feely, Richard A.; Frajka-Williams, Eleanor ORCID: https://orcid.org/0000-0001-8773-7838; Franz, Bryan A.; Gilson, John; Goni, Gustavo; Hamlington, Benjamin D.; Herrford, Josefine; Hu, Zeng-Zhen; Huang, Boyin; Ishii, Masayoshi; Jevrejeva, Svetlana ORCID: https://orcid.org/0000-0001-9490-4665; Kennedy, John J.; Kersalé, Marion; Killick, Rachel E.; Landschützer, Peter; Lankhorst, Matthias; Leuliette, Eric; Locarnini, Ricardo; Lyman, John M.; Marra, John J.; Meinen, Christopher S.; Merrifield, Mark A.; Mitchum, Gary T.; Moat, Ben I. ORCID: https://orcid.org/0000-0001-8676-7779; Nerem, R. Steven; Perez, Renellys C.; Purkey, Sarah G.; Reagan, James; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Scannell, Hillary A.; Schmid, Claudia; Scott, Joel P.; Siegel, David A.; Smeed, David A. ORCID: https://orcid.org/0000-0003-1740-1778; Stackhouse, Paul W.; Sweet, William; Thompson, Philip R.; Triñanes, Joaquin A.; Volkov, Denis L.; Wanninkhof, Rik; Weller, Robert A.; Wen, Caihong; Westberry, Toby K.; Widlansky, Matthew J.; Wilber, Anne C.; Yu, Lisan; Zhang, Huai-Min. 2021 State of the climate in 2020, Global Oceans. In: State of the Climate in 2020, Global Oceans. American Meteorological Society, S143-S198.

Publication year

2021

Publication type

Book section

Authors

Silver, Adrienne; Gangopadhyay, Avijit; Gawarkiewicz, Glen; Taylor, Arnold; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461. 2021 Forecasting the Gulf Stream Path using buoyancy and wind forcing over the North Atlantic. Journal of Geophysical Research: Oceans, 126 (8). 10.1029/2021JC017614

Publication year

2021

Publication type

Article

Publication year

2021

Publication type

Article

Authors

Giddings, Jack; Heywood, Karen J.; Matthews, Adrian J.; Joshi, Manoj M.; Webber, Benjamin G. M.; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; King, Brian A. ORCID: https://orcid.org/0000-0003-1338-3234; Vinayachandran, Puthenveettil N.. 2021 Spatial and temporal variability of solar penetration depths in the Bay of Bengal and its impact on SST during the summer monsoon. Ocean Science. 10.5194/os-17-871-2021

Publication year

2021

Publication type

Article

Authors

New, Adrian ORCID: https://orcid.org/0000-0002-3159-8872; Smeed, David ORCID: https://orcid.org/0000-0003-1740-1778; Czaja, Arnaud; Blaker, Adam ORCID: https://orcid.org/0000-0001-5454-0131; Mecking, Jennifer; Mathews, Jamie; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461. 2021 Labrador slope water connects the subarctic with the Gulf Stream. In: EGU General Assembly 2021, Online, 19-30 April 2021.

Publication year

2021

Publication type

Conference item

Authors

Lumpkin, Rick; Baringer, Molly; Bif, Mariana B.; Boyer, Tim; Bushinsky, Seth M.; Carter, Brendan R.; Cetinić, Ivona; Chambers, Don P.; Cheng, Lijing; Chiba, Sanai; Dai, Minhan; Domingues, Catia M. ORCID: https://orcid.org/0000-0001-5100-4595; Dong, Shenfu; Fassbender, Andrea J.; Feely, Richard A.; Frajka-Williams, Eleanor ORCID: https://orcid.org/0000-0001-8773-7838; Franz, Bryan A.; Gilson, John; Goni, Gustavo; Hamlington, Benjamin D.; Hu, Zeng-Zhen; Huang, Boyin; Ishii, Masayoshi; Jevrejeva, Svetlana ORCID: https://orcid.org/0000-0001-9490-4665; Johns, William E.; Johnson, Gregory C.; Johnson, Kenneth S.; Kennedy, John; Kersalé, Marion; Killick, Rachel E.; Landschützer, Peter; Lankhorst, Matthias; Lee, Tong; Leuliette, Eric; Li, Feili; Lindstrom, Eric; Locarnini, Ricardo; Lozier, Susan; Lyman, John M.; Marra, John J.; Meinen, Christopher S.; Merrifield, Mark A.; Mitchum, Gary T.; Moat, Ben ORCID: https://orcid.org/0000-0001-8676-7779; Monselesan, Didier; Nerem, R. Steven; Perez, Renellys C.; Purkey, Sarah G.; Rayner, Darren ORCID: https://orcid.org/0000-0002-2283-4140; Reagan, James; Rome, Nicholas; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Schmid, Claudia; Scott, Joel P.; Send, Uwe; Siegel, David A.; Smeed, David A. ORCID: https://orcid.org/0000-0003-1740-1778; Speich, Sabrina; Stackhouse, Paul W.; Sweet, William; Takeshita, Yuichiro; Thompson, Philip R.; Triñanes, Joaquin A.; Visbeck, Martin; Volkov, Denis L.; Wanninkhof, Rik; Weller, Robert A.; Westberry, Toby K.; Widlansky, Matthew J.; Wijffels, Susan E.; Wilber, Anne C.; Yu, Lisan; Yu, Weidong; Zhang, Huai-Min. 2020 Global Oceans. In: Lumpkin, Rick, (ed.) State of the Climate in 2019. American Meteorological Society, S129-S184.

Publication year

2020

Publication type

Book section

Authors

Volkov, D. L.; Meinen, C. S.; Schmid, C.; Moat, Ben ORCID: https://orcid.org/0000-0001-8676-7779; Lankhorst, M.; Dong, S.; Li, F.; Johns, W.; Lozier, S.; Perez, R.; Goni, G.; Kersalé, M.; Frajka-Williams, E. ORCID: https://orcid.org/0000-0001-8773-7838; Baringer, M.; Smeed, D. ORCID: https://orcid.org/0000-0003-1740-1778; Rayner, D. ORCID: https://orcid.org/0000-0002-2283-4140; Sanchez-Franks, A. ORCID: https://orcid.org/0000-0002-4831-5461; Send, U.. 2020 Atlantic meridional overturning circulation and associated heat transport. In: Blunden, J.; Arndt, D. S., (eds.) State of the climate in 2019. American Meteorological Society, 159-163. (Bulletin of the American Meteorological Society, 101 (8)).

Publication year

2020

Publication type

Book section

Authors

Sheehan, Peter M. F.; Webber, Benjamin G. M.; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Matthews, Adrian J.; Heywood, Karen J.; Vinayachandran, P. N.. 2020 Injection of oxygenated Persian Gulf Water into the southern Bay of Bengal. Geophysical Research Letters, 47 (14), e2020GL087773. 10.1029/2020GL087773

Publication year

2020

Publication type

Article

Authors

Moat, Ben I. ORCID: https://orcid.org/0000-0001-8676-7779; Smeed, David A. ORCID: https://orcid.org/0000-0003-1740-1778; Frajka-Williams, Eleanor ORCID: https://orcid.org/0000-0001-8773-7838; Desbruyères, Damien G.; Beaulieu, Claudie; Johns, William E.; Rayner, Darren ORCID: https://orcid.org/0000-0002-2283-4140; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Baringer, Molly O.; Volkov, Denis; Jackson, Laura C.; Bryden, Harry L.. 2020 Pending recovery in the strength of the meridional overturning circulation at 26° N. Ocean Science, 16 (4). 863-874. 10.5194/os-16-863-2020

Publication year

2020

Publication type

Article

Authors

Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; et al, .. 2020 RRS James Cook Cruise JC191 19 January - 1 March 2020 Hydrographic sections from the Florida Straits to the Canaries Current across 24ºN in the Atlantic Ocean. Southampton, National Oceanography Centre, 262pp. (National Oceanography Centre Cruise Report, 70)

Publication year

2020

Publication type

Monograph

Authors

Hendry, Katharine R.; Annett, Amber; Bhatia, Rehemat; Damerell, Gillian M.; Fielding, Sophie ORCID: https://orcid.org/0000-0002-3152-4742; Firing, Yvonne ORCID: https://orcid.org/0000-0002-3640-3974; Frajka-Williams, Eleanor ORCID: https://orcid.org/0000-0001-8773-7838; Hartman, Sue ORCID: https://orcid.org/0000-0002-6363-1331; Henley, Sian; Heywood, Karen J.; Holliday, Penny ORCID: https://orcid.org/0000-0002-9733-8002; Huvenne, Veerle ORCID: https://orcid.org/0000-0001-7135-6360; Mils, Rachel A.; Rabe, Berit; Robinson, Carol; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Smythe-Wright, Denise; Taylor, Michelle L; Yelland, Margaret ORCID: https://orcid.org/0000-0002-0936-4957. 2020 Equity at sea: Gender and inclusivity in UK sea-going science. Ocean Challenge, 24 (2). 19-30.

Publication year

2020

Publication type

Article

Authors

Moat, Ben ORCID: https://orcid.org/0000-0001-8676-7779; Herbaut, Christophe; Larsen, Karin Margretha; Hansen, Bogi; Sinha, Bablu; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Houpert, Loic ORCID: https://orcid.org/0000-0001-8750-5631; Yang, Liu; Hazeleger, Wilco; Attema, Jisk; Yeager, Stephen; Small, Justin; Valdimarsson, Hedinn; Berx, Barbara; Cunningham, Stuart; Hallam, Samantha; Woodgate, Rebecca; Lee, Craig; Kwon, Young Oh; Flemming, Laura; Mercier, Herle; Jochumsen, Kerstin; Mecking, Jennifer; Josey, Simon ORCID: https://orcid.org/0000-0002-1683-8831; Holliday, N. Penny ORCID: https://orcid.org/0000-0002-9733-8002. 2020 Model-observation and reanalyses comparison at key locations for heat transport to the Arctic: Assessment of key lower latitude influences on the Arctic and their simulation. Zenodo, 49pp.

Publication year

2020

Publication type

Monograph

Publication year

2019

Publication type

Monograph

Authors

Sanchez-Franks, A. ORCID: https://orcid.org/0000-0002-4831-5461; Webber, B.G.M.; King, B.A. ORCID: https://orcid.org/0000-0003-1338-3234; Vinayachandran, P.N.; Matthews, A.J.; Sheehan, P.M.F.; Behara, A.; Neema, C.P.. 2019 The railroad switch effect of seasonally reversing currents on the Bay of Bengal high salinity core. Geophysical Research Letters, 46 (11). 6005-6014. 10.1029/2019GL082208

Publication year

2019

Publication type

Article

Authors

Vinayachandran, P. N.; Matthews, Adrian J.; Vijay Kumar, K.; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Thushara, V.; George, Jenson; Vijith, V.; Webber, Benjamin G. M.; Queste, Bastien Y.; Roy, Rajdeep; Sarkar, Amit; Baranowski, Dariusz B.; Bhat, G. S.; Klingaman, Nicholas P.; Peatman, Simon C.; Parida, C.; Heywood, Karen J.; Hall, Robert; King, Brian ORCID: https://orcid.org/0000-0003-1338-3234; Kent, Elizabeth C. ORCID: https://orcid.org/0000-0002-6209-4247; Nayak, Anoop A.; Neema, C. P.; Amol, P.; Lotliker, A.; Kankonkar, A.; Gracias, D. G.; Vernekar, S.; D.Souza, A. C.; Valluvan, G.; Pargaonkar, Shrikant M.; Dinesh, K.; Giddings, Jack; Joshi, Manoj. 2018 BoBBLE (Bay of Bengal Boundary Layer Experiment): Ocean–atmosphere interaction and its impact on the South Asian monsoon. Bulletin of the American Meteorological Society, 99 (8). 1569-1587. 10.1175/BAMS-D-16-0230.1

Publication year

2018

Publication type

Article

Authors

Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Kent, Elizabeth ORCID: https://orcid.org/0000-0002-6209-4247; Matthews, Adrian J.; Webber, Benjamin G. M.; Peatman, Simon C.; Vinayachandran, P. N.. 2018 Intraseasonal variability of air-sea fluxes over the Bay of Bengal during the Southwest Monsoon. Journal of Climate, 31 (17). 7087-7109. 10.1175/JCLI-D-17-0652.1

Publication year

2018

Publication type

Article

Authors

Webber, Benjamin G. M.; Matthews, Adrian J.; Vinayachandran, P. N.; Neema, C. P.; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Vijith, V.; Amol, P.; Baranowski, Dariusz B.. 2018 The dynamics of the Southwest Monsoon current in 2016 from high-resolution in situ observations and models. Journal of Physical Oceanography, 48 (10). 2259-2282. 10.1175/JPO-D-17-0215.1

Publication year

2018

Publication type

Article

Authors

Tang, Wenqing; Fore, Alexander; Yueh, Simon; Lee, Tong; Hayashi, Akiko; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Martinez, Justino; King, Brian ORCID: https://orcid.org/0000-0003-1338-3234; Baranowski, Dariusz. 2017 Validating SMAP SSS with in situ measurements. Remote Sensing of Environment, 200. 326-340. 10.1016/j.rse.2017.08.021

Publication year

2017

Publication type

Article

Authors

Bisagni, James J.; Gangopadhyay, Avijit; Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461. 2017 Secular change and inter-annual variability of the Gulf Stream position, 1993–2013, 70°−55°W. Deep Sea Research Part I: Oceanographic Research Papers, 125. 1-10. 10.1016/j.dsr.2017.04.001

Publication year

2017

Publication type

Article

Authors

Sanchez-Franks, Alejandra ORCID: https://orcid.org/0000-0002-4831-5461; Hameed, Sultan; Wilson, Robert E.. 2016 The Icelandic Low as a predictor of the Gulf Stream north wall position. Journal of Physical Oceanography, 46 (3). 817-826. 10.1175/JPO-D-14-0244.1

Publication year

2016

Publication type

Article

Authors

Rossby, T.; Flagg, C. N.; Donohue, K.; Sanchez-Franks, A. ORCID: https://orcid.org/0000-0002-4831-5461; Lillibridge, J.. 2014 On the long-term stability of Gulf Stream transport based on 20 years of direct measurements. Geophysical Research Letters, 41 (1). 114-120. 10.1002/2013GL058636

Publication year

2014

Publication type

Article

Publication year

2014

Publication type

Article