Hydrologic parameters and tensors in the river dynamics: study in colombian caribbean basin

2014 ◽  
Vol 32 (2) ◽  
pp. 218-241
Author(s):  
Álvaro A. López Ramos ◽  
Luisa E. Martínez Acosta ◽  
Jhon J. Feria Díaz
Keyword(s):  
Caribbean Basin ◽  
River Dynamics

POTENSI EROSI DAN SEDIMENTASI HULU DANAU LIMBOTO

2020 ◽  
Vol 11 (2) ◽  
pp. 67-82
Author(s):  
Ardian Alfianto ◽  
Shandy Cecilia
Keyword(s):  
Secondary Data ◽  
Plan Implementation ◽  
River Dynamics

Since 1932, Limboto Lake has been experiencing siltation, in 2006 it was measured that about 4.000 hectare of lake was covered. It was predicted by many that in 2031 Lake Limboto would disappear. The ‘Lake Limboto Revitalization’ has been conducted since 2017 by conducting many activities, including sabo plan implementation (also known as sabo technology). This study was originally conducted to review sabo plan in Limboto Lake, however this particular report was conducted to measure potential of erosion and sedimentation using WaTEM/SEDEM Model. Among 12 upstream rivers/Sub-DAS flowing into Limboto Lake, here were rivers with most potential to bring erosion and sedimentation into the lake to the least: Batulayar 193.662 m3, Biyonga Boluta 123.095 m3, Alo1 120.273m3, Alo 115.204 m3, Molamahu 73.058 m3, Marisa 57.075 m3, Pulubala 53.445 m3, Pone 40.254 m3, Molamahu1 39.585 m3, Pilolalenga 32.306 m3, Talumelito 32.247 m3, Pulubala2 31.267 m3, Tuladengi 28.908 m3, Pone1 27.306 m3, Payunga 26.746 m3, Biyonga Boluta1 25.895 m3, Pilolalenga1 21.841 m3, Tabongo 20.151 m3, Pulubala1 17.741 m3, and Tabongo1 11.031 m3. Considering the river dynamics as well as absence of secondary data about rivers, it was crucial to review sabo plan and to measure sedimentation potential per year.

The Caribbean Basin: A Climatological Study

1989 ◽  
Author(s):  
Kenneth R. Walters ◽  
Andrew G. Korik ◽  
Michael J. Vojtesak
Keyword(s):  
Caribbean Basin ◽  
The Caribbean

scholarly journals Medicinal plant knowledge in Caribbean Basin: a comparative study of Afrocaribbean, Amerindian and Mestizo communities

2015 ◽  
Vol 11 (1) ◽  
pp. 18 ◽  
Author(s):  
Wendy Torres-Avilez ◽  
Martha Méndez-González ◽  
Rafael Durán-García ◽  
Isabelle Boulogne ◽  
Lionel Germosén-Robineau
Keyword(s):  
Medicinal Plant ◽  
Comparative Study ◽  
Caribbean Basin ◽  
Plant Knowledge ◽  
Medicinal Plant Knowledge

Cryptotermes camelus (Isoptera: Kalotermitidae), a new drywood termite species from the Bolivian Chaco

Zootaxa ◽  
2021 ◽  
Vol 4938 (1) ◽  
pp. 145-147
Author(s):  
RUDOLF H. SCHEFFRAHN
Keyword(s):  
Exotic Species ◽  
New World ◽  
Caribbean Basin ◽  
Termite Species ◽  
The Third ◽  
Number Of Species ◽  
Asian Species ◽  
The Caribbean

Cryptotermes Banks, 1906 is the third most diverse kalotermitid genus worldwide after Glyptotermes Froggatt, 1897 and Neotermes Holmgren, 1911, with its greatest diversity found in the Neotropics (Krishna et al. 2013a). Furthermore, the greatest number of species of Cryptotermes are known from the Caribbean Basin (Scheffrahn & Křeček 1999, Casala et al. 2016, Scheffrahn 2019). Although Araujo (1977) and Bacchus (1987) list Cryptotermes domesticus (Haviland, 1898) from Trinidad (treated as mainland) and Panama, respectively, Scheffrahn & Křeček (1999) and Scheffrahn et al. (2009) doubt the existence of this Asian species in the New World. Without C. domesticus, the total extant Neotropical diversity of Cryptotermes is 29 endemic and three exotic species (Constantino 2020). 

scholarly journals Observation and modeling of a historic African dust intrusion into the Caribbean Basin and the southern U.S. in June 2020

2021 ◽  
Author(s):  
Hongbin Yu ◽  
Qian Tan ◽  
Lillian Zhou ◽  
Yaping Zhou ◽  
Huisheng Bian ◽  
...  
Keyword(s):  
Air Quality ◽  
West Africa ◽  
Transport Model ◽  
Satellite Observations ◽  
Moist Convection ◽  
Caribbean Basin ◽  
Dust Emissions ◽  
African Dust ◽  
The Caribbean ◽  
The U.S

Abstract. This study characterizes a massive African dust intrusion into the Caribbean Basin and southern U.S. in June 2020, which is nicknamed the Godzilla dust plume, using a comprehensive set of satellite and ground-based observations (including MODIS, CALIOP, SEVIRI, AERONET, and EPA Air Quality network) and the NASA GEOS global aerosol transport model. The MODIS data record registered this massive dust intrusion event as the most intense episode over the past two decades. During this event, the aerosol optical depth observed by AERONET and MODIS peaked at 3.5 off the coast of West Africa and 1.8 in the Caribbean Basin. CALIOP observations show that the top of dust plume reached altitudes of 6–8 km in West Africa and descended to about 4 km altitude over the Caribbean Basin and 2 km over the U.S. Gulf coast. The dust plume degraded the air quality in Puerto Rico to the hazardous level, with maximum daily PM10 concentration of 453 μg m−3 recorded on June 23. The dust intrusion into the U.S. raised the PM2.5 concentration on June 27 to a level exceeding the EPA air quality standard in about 40 % of the stations in the southern U.S. Satellite observations reveal that dust emissions from convection-generated haboobs and other sources in West Africa were large albeit not extreme on a daily basis. However, the anomalous strength and northern shift of the North Atlantic Subtropical High (NASH) together with the Azores low formed a closed circulation pattern that allowed for accumulation of the dust near the African coast for about four days. When the NASH was weakened and wandered back to south, the dust outflow region was dominated by a strong African Easterly Jet that rapidly transported the accumulated dust from the coastal region toward the Caribbean Basin, resulting in the record-breaking African dust intrusion. In comparison to satellite observations, the GEOS model well reproduced the MODIS observed tracks of the meandering dust plume as it was carried by the wind systems. However, the model substantially underestimated dust emissions from haboobs and did not lift up enough dust to the middle troposphere for ensuing long-range transport. Consequently, the model largely missed the satellite-observed elevated dust plume along the cross-ocean track and underestimated the dust intrusion into the Caribbean Basin by a factor of more than 4. Modeling improvements need to focus on developing more realistic representations of moist convection, haboobs, and the vertical transport of dust.

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