Intraseasonal and Synoptic Climate Variability of Surface Solar Radiation over South‐West Indian Ocean: Regional Climate Modeling

2021 ◽  
Author(s):  
Peng Li ◽  
Qi Li
Keyword(s):  
Indian Ocean ◽  
Solar Radiation ◽  
Climate Variability ◽  
Climate Modeling ◽  
Regional Climate ◽  
Regional Climate Modeling ◽  
Surface Solar Radiation ◽  
South West Indian Ocean ◽  
South West ◽  
West Indian Ocean

scholarly journals ReNovRisk: a multidisciplinary programme to study the cyclonic risks in the South-West Indian Ocean

2021 ◽  
Author(s):  
Pierre Tulet ◽  
Bertrand Aunay ◽  
Guilhem Barruol ◽  
Christelle Barthe ◽  
Remi Belon ◽  
...  
Keyword(s):  
Indian Ocean ◽  
West Indian ◽  
Ocean Basin ◽  
Transport Processes ◽  
The South ◽  
South West Indian Ocean ◽  
South West ◽  
The Face ◽  
West Indian Ocean ◽  
Solid Transport

AbstractToday, resilience in the face of cyclone risks has become a crucial issue for our societies. With climate change, the risk of strong cyclones occurring is expected to intensify significantly and to impact the way of life in many countries. To meet some of the associated challenges, the interdisciplinary ReNovRisk programme aims to study tropical cyclones and their impacts on the South-West Indian Ocean basin. This article is a presentation of the ReNovRisk programme, which is divided into four areas: study of cyclonic hazards, study of erosion and solid transport processes, study of water transfer and swell impacts on the coast, and studies of socio-economic impacts. The first transdisciplinary results of the programme are presented together with the database, which will be open access from mid-2021.

scholarly journals Diversity and Geographical Structure of Xanthomonas citri pv. citri on Citrus in the South West Indian Ocean Region

2021 ◽  
Vol 9 (5) ◽  
pp. 945
Author(s):  
Olivier Pruvost ◽  
Damien Richard ◽  
Karine Boyer ◽  
Stéphanie Javegny ◽  
Claudine Boyer ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Host Range ◽  
Disease Surveillance ◽  
West Indian ◽  
Copper Resistance ◽  
The South ◽  
South West Indian Ocean ◽  
South West ◽  
Strain Collection ◽  
West Indian Ocean

A thorough knowledge of genotypic and phenotypic variations (e.g., virulence, resistance to antimicrobial compounds) in bacteria causing plant disease outbreaks is key for optimizing disease surveillance and management. Using a comprehensive strain collection, tandem repeat-based genotyping techniques and pathogenicity assays, we characterized the diversity of X. citri pv. citri from the South West Indian Ocean (SWIO) region. Most strains belonged to the prevalent lineage 1 pathotype A that has a wide host range among rutaceous species. We report the first occurrence of genetically unrelated, nonepidemic lineage 4 pathotype A* (strains with a host range restricted to Mexican lime and related species) in Mauritius, Moheli and Réunion. Microsatellite data revealed that strains from the Seychelles were diverse, grouped in three different clusters not detected in the Comoros and the Mascarenes. Pathogenicity data suggested a higher aggressiveness of strains of one of these clusters on citron (Citrus medica). With the noticeable exception of the Comoros, there was no sign of recent interisland movement of the pathogen. Consistent with this finding, the copL gene, a marker for the plasmid-borne copLAB copper resistance that was recently identified in Réunion, was not detected in 568 strains from any islands in the SWIO region apart from Réunion.

The South-West Indian Ocean: Discussion

1910 ◽  
Vol 36 (3) ◽  
pp. 268 ◽  
Author(s):  
Stanley Gardiner ◽  
J. C. F. Fryer
Keyword(s):  
Indian Ocean ◽  
West Indian ◽  
The South ◽  
South West Indian Ocean ◽  
South West ◽  
West Indian Ocean

scholarly journals Deep-Sea Benthic Foraminiferal Distribution in South West Indian Ocean: Implications to Paleoecology

2010 ◽  
Vol 01 (02) ◽  
pp. 79-86 ◽  
Author(s):  
Nadimikeri Jayaraju ◽  
Balam Chinnapolla Sundara Raja Reddy ◽  
Kambham Reddeppa Reddy ◽  
Addula Nallappa Reddy
Keyword(s):  
Indian Ocean ◽  
Deep Sea ◽  
West Indian ◽  
South West Indian Ocean ◽  
South West ◽  
West Indian Ocean ◽  
Foraminiferal Distribution

scholarly journals Latitudinal and seasonal variability of gravity-wave energy in the South-West Indian Ocean

2007 ◽  
Vol 25 (12) ◽  
pp. 2479-2485 ◽  
Author(s):  
F. Chane-Ming ◽  
D. Faduilhe ◽  
J. Leveau
Keyword(s):  
Energy Density ◽  
Indian Ocean ◽  
Total Energy ◽  
Seasonal Variability ◽  
La Réunion ◽  
Raman Lidar ◽  
Total Energy Density ◽  
South West Indian Ocean ◽  
South West ◽  
West Indian Ocean

Abstract. Vertical temperature profiles obtained by radiosonde and Raman lidar measurements are used to investigate a climatology of total energy density of gravity waves (GW) in the Upper Troposphere (UT) and the Lower Stratosphere (LS) from 1992 to 2004 above Mahé (4° S, 55° E), Tromelin (15° S, 54° E) and La Réunion (21° S, 55° E) located in the tropical South-West Indian Ocean. The commonly used spectral index value (p≈5/3) of the intrinsic frequency spectrum is used for calculating estimated total energy density in the UT and LS. Estimated total energy density provides good estimation of total energy density in the LS but underestimates total energy density by one half in the UT above Mahé and Tromelin probably due to the activity of near-inertial frequency waves. Estimated total energy density reveals a strong seasonal variability as a function of latitude and convection as an evident active source of GW activity in the LS in austral summer. Above La Réunion, a semi-annual GW activity is observed in the LS with the signature of the subtropical barrier in the UT. Moreover, radiosondes and Raman lidar provide consistent GW surveys in the UT/LS at heights<23 km above La Réunion.

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