Research Article
Climate Change Impacts on Maritime Resources in Lebanon Using Satellites Imagery, Chekka Case Study
Sirine Saad El-Dine Ghiye*
Issue:
Volume 13, Issue 3, June 2024
Pages:
63-72
Received:
16 March 2024
Accepted:
14 May 2024
Published:
27 June 2024
Abstract: This paper aims to explore the impact of climate change on underwater and coastal sites over the past few decades, with a specific focus on the Chekka area in North Lebanon. Given its rich maritime archaeology potential, this region has become a focal point, especially with the ongoing developments posing a threat to cultural resources. Detecting climate changes necessitates extensive measurements from various sources globally, including land stations, ships, and satellite imagery. In this study, we concentrate on changes in sea surface temperature (SST) over the last 20 to 40 years. The analysis heavily relies on satellite imagery, with a primary focus on Landsat 8, equipped with two bands of the thermal infrared sensor (TIRS), and Landsat 7, which carries the Enhanced Thematic Mapper Plus (ETM+) sensor, and also Landsat 5 TM. Utilizing QGIS for the calculation of SST, our findings reveal a noteworthy increase of 1° in sea surface temperature over the past two decades. This observation underscores the significance of ongoing climate change and its potential repercussions for the underwater and coastal cultural heritage in the Chekka area and its suburbs.
Abstract: This paper aims to explore the impact of climate change on underwater and coastal sites over the past few decades, with a specific focus on the Chekka area in North Lebanon. Given its rich maritime archaeology potential, this region has become a focal point, especially with the ongoing developments posing a threat to cultural resources. Detecting c...
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Research Article
Determination of Water Requirements and Irrigation Scheduling for Major Cereal Crops Grown in Welmera District, Central Highland of Ethiopia
Nigusie Abebe*,
Mohammed Temam
Issue:
Volume 13, Issue 3, June 2024
Pages:
73-83
Received:
12 July 2024
Accepted:
6 August 2024
Published:
20 August 2024
Abstract: Determination of crop water requirements and appropriate irrigation scheduling is important to prevent over or under-irrigation. The study was conducted to determine the crop water requirement and irrigation scheduling of the selected cereal crops grown under irrigated conditions at Holeta, Central Highland of Ethiopia. The crops include wheat, maize, and barley. By using the 30-years climatic data, the crop evapotranspiration (ETc), reference crop evapotranspiration (ETo), and irrigation water requirement for each crop were determined by using the CROPWAT model which is based on FAO-Penman Monteith equation. The results indicated that, the CWR for the early January sown wheat, maize, and barley was 380.2mm, 433.2mm, and 399.2mm respectively. The seasonal gross irrigation requirement was estimated to be 633.67 mm, 722 mm, and 665.33 mm for wheat, maize, and barley respectively. for 1st January sown wheat, maize, and barley, irrigation should be given nine times for wheat (1-Jan, 10-Jan, 21-Jan,5-Feb, 16-Feb, 26-Feb, 11-Mar, 25-Mar, and last irrigation on 10-Apr), with GIR application of 50.3mm, 28.1mm, 34.6mm, 48.2mm,56.6mm,67.2mm,69.5mm, 66.2mm, and 72.3mm depth respectively. Seven times for maize (1-Jan, 19-Jan, 5-Feb, 19-Feb, 6-Mar, 21-Mar, and last irrigation on 10-Apr) with GIR of 54.1mm, 51.2mm, 73mm, 89.8mm,96.9mm, 97.7mm, and 100.8mm depth respectively and eight times for barley (1-Jan, 11-Jan, 25-Jan, 6-Feb, 16-Feb, 1-Mar, 15-Mar and last irrigation on 30-Mar) with GIR amount of 42.5mm, 29mm, 39.6mm, 54.1mm, 60mm, 61.6mm, 63.1mm, and 64.1mm depth at each irrigation date respectively. This study might be useful in preventing over or under-irrigation and planning water management strategies in the district for the selected crops.
Abstract: Determination of crop water requirements and appropriate irrigation scheduling is important to prevent over or under-irrigation. The study was conducted to determine the crop water requirement and irrigation scheduling of the selected cereal crops grown under irrigated conditions at Holeta, Central Highland of Ethiopia. The crops include wheat, mai...
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Research Article
Maritime Pollution in Pakistan and Its Impact on Marine Life: Challenges and Way Forward
Hamna Ghias Sheikh*,
Gul Hameed
Issue:
Volume 13, Issue 3, June 2024
Pages:
84-93
Received:
7 July 2024
Accepted:
31 July 2024
Published:
20 August 2024
Abstract: Marine pollution is a major threat to marine biodiversity, ecosystems and socio-economic conditions of coastal communities in Pakistan. Driven by industrial, agricultural and plastic pollution, mounting levels of marine pollution are largely resulting in habitat destruction, biodiversity loss and difficulties in conduct of subsistence activities. Lack of waste management system and public awareness further compound the problem. The present study gives a comprehensive analysis of marine pollution, its sources, types and mechanism as well as the damage is does to marine environment. The study also examines existing domestic and international legislation on marine pollution eradication and puts forth recommendations in the form of both short and long terms measures for pollution mitigation in Pakistan. The study also emphasizes the need to sensitize public attention on this pressing issue and advocates awareness campaigns regarding oil spill response preparedness, investment in resilient infrastructure and plastic pollution eradication initiatives. Long term measures stem from analysis of several case studies of island countries. These measures include protection of critical infrastructure, ecosystem conservation as well as increased research and development. Effective implementation of these measures can help Pakistan transition into a sustainable and secure future.
Abstract: Marine pollution is a major threat to marine biodiversity, ecosystems and socio-economic conditions of coastal communities in Pakistan. Driven by industrial, agricultural and plastic pollution, mounting levels of marine pollution are largely resulting in habitat destruction, biodiversity loss and difficulties in conduct of subsistence activities. L...
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