Johann Lutjeharms | Academic Influence

Johann Lutjeharms's AcademicInfluence.com Rankings

Johann Lutjeharms

Biology

#7735

World Rank

#10700

Historical Rank

Marine Biology

#181

World Rank

#198

Historical Rank

biology Degrees

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Biology

Johann Lutjeharms's Degrees

Bachelors Marine Biology University of Cape Town
Masters Marine Science University of Cape Town
PhD Marine Ecology University of Cape Town

Why Is Johann Lutjeharms Influential?

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According to Wikipedia, Johann Reinder Erlers Lutjeharms , was a leading South African marine scientist and an authority in the oceanography of the Agulhas Current, who authored a definitive work on the subject, The Agulhas Current . His main field of investigation was the large-scale circulation patterns of the oceans adjacent to southern Africa and their influence on weather and climate, and he participated in 17 research cruises and was responsible for a further 48 projects undertaken on such cruises.

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Johann Lutjeharms's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Indian‐Atlantic interocean exchange: Dynamics, estimation and impact (1999) (353)
Increase in Agulhas leakage due to poleward shift of Southern Hemisphere westerlies (2009) (315)
Agulhas leakage dynamics affects decadal variability in Atlantic overturning circulation (2008) (270)
The Retroflection of the Agulhas Current (1988) (262)
Observations of the flow in the Mozambique Channel (2002) (254)
Southern ocean thermal fronts south of Africa (1984) (223)
Exploitation of mesoscale oceanographic features by grey-headed albatross Thalassarche chrysostoma in the southern Indian Ocean (2001) (210)
The extent and variability of South-East Atlantic upwelling (1987) (208)
The Cape Cauldron: A regime of turbulent inter-ocean exchange (2003) (206)
Stratification and circulation at the Agulhas Retroflection (1987) (206)
The flow field of the subtropical gyre of the South Indian Ocean (1997) (199)
Oceanic Frontal Systems and Biological Enhancement (1985) (183)
Eddies and dipoles around South Madagascar: formation, pathways and large-scale impact (2004) (179)
Translation, decay and splitting of Agulhas rings in the southeastern Atlantic Ocean (2000) (176)
The Natal pulse: An extreme transient on the Agulhas Current (1988) (174)
Agulhas Current (2019) (161)
Upwelling at the inshore edge of the Agulhas Current (2000) (161)
The source of Benguela Niños in the South Atlantic Ocean (2003) (160)
Kinematics of the upwelling front off southern Africa (1987) (157)
The Agulhas Return Current (2001) (156)
The Exchange of Water Between the South Indian and South Atlantic Oceans (1996) (148)
Eddy fluxes of heat and salt from the southwest Indian Ocean into the southeast Atlantic Ocean : a case study (1994) (134)
Location of frontal systems between Africa and Antarctica: some preliminary results (1985) (131)
Surface thermal characteristics of the Angola-Benguela front (1990) (130)
Evolution of Interannual Warm and Cold Events in the Southeast Atlantic Ocean. (2004) (123)
Path and variability of the Agulhas Return Current (2003) (120)
Shedding of an Agulhas ring observed at sea (1987) (114)
Influence of the Agulhas Current on Summer Rainfall along the Southeast Coast of South Africa (1993) (112)
Three decades of research on the greater Agulhas Current (2006) (111)
Generation of cyclonic eddies by the Agulhas Current in the Lee of the Agulhas Bank (2001) (109)
Natal pulses and the formation of Agulhas rings (2000) (106)
Characteristics of the currents east and south of Madagascar (1981) (103)
Madagascar: A pacemaker for the Agulhas Current system? (2006) (102)
Observations of Extreme Upwelling Filaments in the Southeast Atlantic Ocean (1991) (98)
Mesoscale perturbations control inter‐ocean exchange south of Africa (2008) (97)
An altimetry‐based gravest empirical mode south of Africa: 1. Development and validation (2010) (95)
Current transport of leatherback sea turtles (Dermochelys coriacea) in the ocean (2003) (94)
A regional hydrodynamic model of upwelling in the Southern Benguela (2001) (93)
Eddies and other boundary phenomena of the Agulhas Current (1989) (92)
A review of migratory behaviour of sea turtles off southeastern Africa (2006) (91)
Eddies at the Subtropical Convergence South of Africa (1988) (88)
Topographic control in the Agulhas Current system (1984) (87)
Modelling the shear edge eddies of the southern Agulhas Current (2003) (85)
THE COASTAL OCEANS OF SOUTH-EASTERN AFRICA (2006) (83)
The hydrography and water masses of the Natal Bight, South Africa (2000) (82)
Influence of ocean currents on long-distance movement of leatherback sea turtles in the Southwest Indian Ocean (2008) (80)
Structure and origin of the subtropical South Indian Ocean Countercurrent (2006) (79)
Ocean–Atmosphere Interaction in the Agulhas Current Region and a South African Extreme Weather Event (2002) (79)
Generation and Evolution of Natal Pulses: Solitary Meanders in the Agulhas Current (1999) (78)
The hydrography and dynamics of the Angola-Benguela Frontal Zone and environment in April 1999 : BENEFIT Marine Science (2001) (78)
A statistical analysis of the meso-scale dynamics of the Southern Ocean (1980) (73)
Interbasin leakage through Agulhas current filaments (1996) (72)
The disparate evolution of three Agulhas rings in the South Atlantic Ocean (1999) (72)
The nutrient characteristics of the Natal Bight, South Africa (2002) (71)
A major perturbation in the Agulhas retroflection area in 1986 (1990) (70)
Physical-biological coupling in the waters surrounding the Prince Edward Islands (Southern Ocean) (1999) (67)
Anomalous Upstream Retroflection in the Agulhas Current (1988) (64)
Transport and variability of the Antarctic Circumpolar Current south of Africa (2008) (64)
Underestimation of Latent and Sensible Heat Fluxes above the Agulhas Current in NCEP and ECMWF Analyses (2003) (63)
An upwelling cell inshore of the East Madagascar Current (2000) (63)
Sea-surface temperatures at the sub-Antarctic islands Marion and Gough during the past 50 years (2003) (63)
The Atmospheric Boundary Layer above the Agulhas Current during Alongcurrent Winds (2000) (62)
Why Are There Agulhas Rings (1999) (62)
Biological physical interactions and pelagic productivity at the Prince Edward Islands, Southern Ocean (2000) (62)
Observed characteristics of Mozambique Channel eddies (2010) (61)
The influence of the Agulhas Current on the adjacent coastal ocean: possible impacts of climate change (1996) (60)
Climate variability at Marion Island, Southern Ocean, since 1960 (2005) (60)
Direct observations of eddy turbulence at a ridge in the Southern Ocean (2005) (58)
Upper-layer circulation in the eastern Equatorial and South Atlantic Ocean in January-March 1995 (2003) (57)
Spatial scales and intensities of circulation in the ocean areas adjacent to South Africa (1981) (57)
Monitoring the oceanic flow between Africa and Antarctica: Report of the first GoodHope cruise (2005) (55)
Early evolution of an Agulhas Ring (2003) (53)
The oceans around southern Africa and regional effects of global change : START Regional Syntheses (2001) (52)
Observations of the southern East Madagascar Current and undercurrent and countercurrent system (2008) (52)
The Delagoa Bight eddy (1988) (52)
Remote sensing corroboration of retroflection of the East Madagascar Current (1988) (51)
Eddies originating at the South-West Indian Ridge (2003) (50)
Modes of the southern extension of the East Madagascar Current (2009) (50)
Surface drift in the South-East Atlantic Ocean (2000) (49)
Event‐scale blooms drive enhanced primary productivity at the Subtropical Convergence (2005) (47)
Variability and coherence of the Agulhas Undercurrent in a High-resolution Ocean General Circulation Model (2009) (46)
Introduction to the "Inter-ocean exchange around southern Africa" (2003) (46)
The importance of flow in the Mozambique Channel to seasonality in the Greater Agulhas Current System (1999) (45)
Role of bathymetry in Agulhas Current configuration and behaviour (2006) (45)
Atmospheric effects in the Angola‐Benguela frontal zone (1999) (44)
The water masses and volumetry of the southern Agulhas Current region (1993) (43)
Siphonophore assemblages along the east coast of South Africa; mesoscale distribution and temporal variations (2004) (42)
Mesoscale bio-physical interactions between the Agulhas Current and the Agulhas Bank, South Africa (2012) (42)
The hydrography and dynamics of the ocean environment of the Prince Edward Islands (Southern Ocean) (2002) (41)
Float experiment studies interocean exchanges at the tip of Africa (1998) (39)
Quantification of the interocean exchange of intermediate water masses around southern Africa (2003) (38)
Water types and volumetric considerations of the South-East Atlantic upwelling regime (1987) (37)
On the influence of submarine ridges on translation and stability of Agulhas rings (1999) (37)
Plankton community structure in the physical environment surrounding the Prince Edward Islands (Southern Ocean) (1999) (37)
The Agulhas Current System During the Northeast Monsoon Season (1976) (36)
Entrainment of Antarctic euphausiids across the Antarctic Polar Front by a cold eddy (2007) (36)
The ocean environment off southeastern Africa: a review (2006) (36)
First hydrographic evidence of the southeast Madagascar upwelling cell (2002) (36)
Evidence that the natal pulse involves the Agulhas Current to its full depth (2001) (35)
Meridional heat transport across the Sub-Tropical Convergence by a warm eddy (1988) (34)
Moisture uptake in the boundary layer above the Agulhas Current : A case study (1999) (33)
Temporal variability in the physico-biological environment of the Prince Edward Islands (Southern Ocean) (2000) (33)
Cross-front hydrography and fish larval distribution at the Angola–Benguela Frontal Zone (2001) (33)
The exchange of water between the South Indian and the South Atlantic (1996) (33)
A review of South African research in atmospheric science and physical oceanography during 2000-2005 (2006) (31)
The rock-lobster Jasus tristani on Vema Seamount: Drifting buoys suggest a possible recruiting mechanism (1981) (31)
Phytoplankton distribution in the Agulhas system from a coupled physical–biological model (2005) (30)
Inter-ocean fluxes south of Africa in an eddy-permitting model (2002) (30)
Oceanographic observations of eddies impacting the Prince Edward Islands, South Africa (2010) (30)
The nutrient characteristics of the Agulhas Bank (1996) (29)
Interbasin exchange and the Agulhas retroflection; the development of some oceanographic concepts (1992) (29)
A REGIONAL HYDRODYNAMIC MODEL OF THE SOUTHERN BENGUELA UPWELLING (2004) (28)
Intrathermocline eddies in the Southern Indian Ocean (2006) (27)
On the discontinuous nature of the Mozambique Current (2012) (27)
Modeling the Variability of the Greater Agulhas Current System (2007) (26)
Oceanographic setting of the Prince Edward Islands (2008) (25)
VARIABILITY OF THE SOUTH INDIAN OCEAN AND IMPLICATIONS FOR SOUTHERN AFRICAN RAINFALL (1998) (25)
Scientific productivity. (1981) (25)
MARE and ACSEX: new research programmes on the Agulhas Current System (2000) (24)
The importance of the greater Agulhas Current is increasingly being recognised (2010) (23)
Detailed characterization of a cold Antarctic eddy (2008) (22)
CUMULUS CLOUD FORMATION ABOVE THE AGULHAS CURRENT (1998) (22)
Estimation of sea-surface temperature around southern Africa from satellite-derived microwave observations (2003) (22)
A Quantitative Assessment of Year-to-Year Variability in Water Movement in the South-west Indian Ocean (1972) (22)
Observations of the inter-ocean exchange around South Africa (2006) (21)
Sensitivity of a tropical-temperate trough to sea-surface temperature anomalies in the Agulhas retroflection region (1998) (21)
Decay of eddies at the South-West Indian Ridge (2011) (21)
Observational evidence for a cross frontal heat pump in the Southern Ocean (2006) (20)
A research cruise to investigate the Mozambique Current : news & views (2001) (20)
Frontal zones, chlorophyll and primary production patterns in the surface waters of the Southern Ocean south of Cape Town (1986) (18)
The detailed thermal structure of the upper ocean layers between Cape Town and Antarctica during the period Jan.-Feb. 1978 (1983) (18)
The Role of Mesoscale Turbulence in the Agulhas Current System (1989) (18)
Cyclonic eddies identified in the Cape Basin of the South Atlantic Ocean (2011) (17)
Oceanographic and faunistic structures across an Angola Current intrusion into northern Namibian waters (2004) (17)
Space–time behaviour of the Angola–Benguela Frontal Zone during the Benguela Niño of April 1999 (2004) (17)
Influence of oceanic factors on long-distance movements of loggerhead sea turtles displaced in the southwest Indian Ocean (2010) (16)
Hydrographic and biological patterns across the Angola–Benguela Frontal Zone under undisturbed conditions (2008) (16)
Recruitment of rock lobster on Vema Seamount from the islands of Tristan da Cunha (1981) (15)
Establishing a basis for ecosystem management in the western Indian Ocean (2008) (14)
On the surface drift of the Southern Ocean (1988) (13)
Satellite Studies of the South Atlantic Upwelling System (1981) (12)
KAPEX RAFOS Float Data Report 1997-1999; Part A: The Agulhas- and South Atlantic Current Components, (2000) (12)
The Conrad Rise as an obstruction to the Antarctic Circumpolar Current (2008) (12)
Evidence for the Antarctic circumpolar wave in the sub‐Antarctic during the past 50 years (2005) (12)
The World Ocean Circulation Experiment (WOCE) (1987) (12)
Observations of an early Agulhas current retroflection event in 2001: A temporary cessation of inter-ocean exchange south of Africa? (2013) (11)
Physical and biological processes at the Subtropical Convergence in the South-west Indian Ocean (2007) (11)
Aspects of the upwelling regime between Cape Point and Cape Agulhas, South Africa (1991) (11)
Interaction of Agulhas filaments with mesoscale turbulence: a case study (2008) (10)
Baroclinic Volume Transport in the Southern Ocean (1982) (10)
Surface drift at the western edge of the Agulhas Bank (2007) (10)
Ocean circulation studies in the vicinity of Southern Africa: Preliminary results using FGGE drifters and remote sensing (1981) (10)
Carbon export associated with the Benguela upwelling system (1992) (9)
First oceanographic survey of the entire continental shelf adjacent to the northern Agulhas Current (2010) (9)
THE SOUTH ATLANTIC AND THE CLIMATE (1999) (9)
Physical and biological variability in the Antarctic Polar Frontal Zone: report on research cruise 103 of the MV SA Agulhas (2002) (9)
THE COASTAL CURRENT CIRCULATION DURING THE ORANGE RIVER FLOOD 1988 (1990) (9)
Why is the stability of the Agulhas Current geographically bi‐modal? (2009) (9)
Studying the impact of ocean eddies on the ecosystem of the Prince Edward Islands: DEIMEC ll : research in action (2003) (8)
Tidal Measurements Along the Antarctic Coastline (2013) (8)
A CENTURY OF PHYSICAL OCEANOGRAPHY IN SOUTH AFRICA; IN SEARCH OF THE LEGACY OF JOHN D. F. GILCHRIST (1997) (7)
An interdisciplinary cruise dedicated to understanding ocean eddies upstream of the Prince Edward Islands (2004) (7)
Large-scale modelling of the South-East Atlantic upwelling system (1995) (7)
A descriptive physical analysis of water movement in the South West African Indian Ocean during the Northeast monsoon season (1971) (7)
Eddies and dipoles around South Madagascar and their large-scale impact (2003) (6)
Intrusions of sub-Antarctic water across the Subtropical Convergence south of Africa : research letters (2003) (6)
The temporal displacement of ocean fronts south-east of Africa (2002) (6)
Atmospheric driving forces for the Agulhas Current in the subtropics (2007) (6)
The Agulhas System as a Key Region of the Global Oceanic Circulation (2008) (6)
Sea-level changes: Consequences for the Southern Hemisphere (1991) (6)
Mixing of Antarctic Intermediate Water from the Atlantic and Indian Ocean at the Agulhas Retroflection (2000) (6)
Investigating the Global Impacts of the Agulhas Current (2010) (5)
The first oceanographic survey of the Conrad Rise (2008) (5)
Ocean currents south of Africa from drifters (2008) (4)
Time variations in the spatial scales and intensities of ocean circulation in the vicinity of the Cape of Good Hope (1977) (4)
Antarctic intermediate water at the Agulhas Current retroflection region (2010) (4)
A history of recent South African marine research in the Southern Ocean (1991) (4)
On Some Similarities between the Oceanic Circulations off Southern Africa and off Taiwan (1994) (3)
The physical oceanology of the Southern Ocean south of Africa : a bibliography (1985) (2)
Oceanic thermal fronts in the Southern Ocean : a statistical analysis of historic date South of Africa (1983) (2)
Comment on “New Global Drifter Data Set available” (2004) (2)
Global rise in sea level: a South African perspective (1989) (1)
The historical development of physical research on the oceans bordering Southern Africa (1982) (1)
Physical oceanographic activities in South Africa: 1995-1998 (1999) (1)
Stable carbon and oxygen isotope ratios of foraminifera of sediment core MD96-2080 (2002) (1)
The determination of sea level in the Southern Ocean (1985) (1)
Air-sea interaction at the subtropical convergence south of Africa (1994) (1)
3 South Atlantic Inter-Ocean Exchanges (2007) (0)
New views of the Atlantic. A tribute to Gerold Siedler (1999) (0)
Quo vadis South African universities (2007) (0)
Planktic foraminifera counts (census) of sediment core MD96-2080 (2002) (0)
Intrusion of Angolan water into the Northern Benguela and Anomalous Cross-slope Distributions of Fish Larvae (2002) (0)
The Royal Society of South Africa (2000) (0)
Building the next generation of South African scientists : correspondence (2006) (0)
The Indian-Atlantic Interocean Secondary Leakage via the Agulhas Bank (2002) (0)
Direct observations of oceanic flow: A tribute to Walter Zenk. (2005) (0)
A decade of annual conferences of the South African Society for Atmospheric Sciences (1999) (0)
Sedimentology, foraminiferal assemblage, and isotope record of the Agulhas Bank region (2002) (0)
Agulhas Leakage: The Neglected Player in the Variability of the Atlantic Meridional Overturning Circulation (2009) (0)
Organic d15N, δ¹³C and calcium carbonate of sediment core MD96-2080 (2002) (0)
The Royal Society of South Africa (2000) (0)
First Float Trajectories from KAPEX (1999) (0)
New thought on the Agulhas Current (2002) (0)
Walter Zenk: a distinguished ocean observer (2005) (0)
The Importance of Small-scale Dynamics on the Agulhas Leakage (2008) (0)
Enhanced Primary Productivity at the Subtropical Convergence (2004) (0)
New research initiative on air sea interaction in South Africa (1994) (0)
The interaction between ocean and atmosphere: a review (1985) (0)
The poverty of a rootless science (1991) (0)
Note from the editor (2000) (0)

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What Schools Are Affiliated With Johann Lutjeharms?

Johann Lutjeharms is affiliated with the following schools:

University of Cape Town