Publications

Joint Environmental Monitoring Programme at Two Mekong Mainstream Dams: The Don Sahong and Xayaburi Hydropower Projects

The report provides an overview of activities conducted and resulting recommendations from monitoring two mainstream dams: Don Sahong and Xayaburi hydropower projects. It summarizes the pilot monitoring results from the first pilot site report for each hydropower project and the Combined Annual Report in a way that illustrates how findings in hydrology, sediment, water quality, aquatic ecology, and fisheries can be interpreted together. Based on the findings, it provides some initial suggestions for mitigation and adaptive management of construction and operation of hydropower projects. It also concludes with recommendations for revisions to the guidelines and monitoring protocols that can then be incorporated into the JEM Programme document.

Download | DOI: 10.52107/mrc.aqrs7o | Published on: 19 Aug 2022 | Language: English

Mekong Low Flow and Drought Conditions in 2019–2021
Conditions in 2019–2021: Hydrological Conditions in the Lower Mekong River Basin (Technical Report)

This technical report unravels the underlying drivers of the extremely low flows and drought based on an analysis of the available data the MRC has collected. Based on the findings, it suggests potential measures to address and mitigate the impacts of the hydrological droughts and storage on the Basin’s people.

Download | DOI: 10.52107/mrc.qx5yo7 | Published on: 13 Jan 2022 | Language: English

Annual Mekong Hydrology, Flood and Drought Report 2019: Drought in the Lower Mekong Basin

This paper reports on the condition of the Basin in 2019, including its hydrology/water flow, flood and drought. The year saw recorded unprecedented flow conditions in the Mekong mainstream and from tributaries. Erratic climatic fluctuations were also found, ranging from extreme dry to extreme wet within short periods of time. The report ends with key recommendations, looking forward.

Download | DOI: 10.52107/mrc.ajutoy | Published on: 27 Dec 2021 | Language: English

Situation Report on Dry Season Hydrological Conditions in the Lower Mekong River Basin: November 2020–May 2021

This Situation Report presents a preliminary analysis of the Lower Mekong River Basin hydro-meteorological conditions over the 2020–2021 dry season. It shows fluctuations in water levels in the upper reaches of the Mekong mainstream in Lao PDR and Thailand, as well as low water volume stored in the Tonle Sap Lake. Rainfall in April–May was the highest on record for these months for the last 18 years in places. Overall, flows in the Mekong in the first five months of 2021 were also higher than the long-term average, except for December 2020 where flows in the Mekong mainstream were closer to normal. But river flows did not increase significantly.

Download | DOI: 10.52107/mrc.qx5yo1 | Published on: 30 Jun 2021 | Language: English

Technical Guidelines on the Implementation of the Procedures for Water Quality

The Technical Guidelines facilitates the implementation of the Procedures for Water Quality (PWQ) – one of the five Mekong Agreement’s Procedural Rules. The objective of the PWQ is to “establish a cooperative framework for the maintenance of acceptable/good water quality to promote the sustainable development of the Mekong River Basin.”

Download | Published on: 16 Jun 2021 | Language: English

Situation Report on Hydrological Conditions in the Lower Mekong River Basin in July–December 2020

The report presents a preliminary analysis of the hydro-meteorological conditions in the Lower Mekong River Basin (LMB) in July–December 2020. The report suggests that the LMB experience a second year of low flows at the beginning and a delayed onset of the wet season in 2020, with some parts experiencing low flows and appearing to be worse than that in 2019.

Download | DOI: 10.52107/mrc.qx5yo2 | Published on: 21 May 2021 | Language: English

Situation Report On Hydrological Conditions In the Lower Mekong River Basin in January-July 2020

The report presents a preliminary analysis of the hydro-meteorological conditions in the Lower Mekong River Basin (LMB) in January-July 2020 and identifies multiple possible causes of the low flows and drought in 2020.

Download | DOI: 10.52107/mrc.ajg3u0 | Published on: 07 Aug 2020 | Language: English

Annual Mekong Hydrology, Flood and Drought Report 2018

The report will replaces the Annual Mekong Flood Report to provide an annual summary on different hydrological subjects, ranging from flood, hydrology, and drought recognition to monitoring and early warning, remote sensing, modelling, and water management.

Download | DOI: 10.52107/mrc.ajg3u4 | Published on: 09 Jul 2020 | Language: English

2019 Lower Mekong Water Quality Monitoring Report

This report contains the assessment of the status and trends of water quality at 30 stations across the Lower Mekong Basin (LMB). In addition to the assessment of water quality at all 17 mainstream and 5 Bassac stations, this report also includes the results of water quality analyses at 8 selected tributary stations covering 7 tributaries of the Mekong River, namely the Mae Kok River, Nam Ou River, Houay Mak Hiao, Nam Mun River, Se San River, Sre Pok River, and Tonle Sap River.

Download | Published on: 01 Jun 2020 | Language: English

Provision of Flood Forecasting, Flash Flood Guidance, Dry Season Monitoring and Dissemination of Information and Warning and Alert Services
Audited Statements and Independent Auditors' Report, 1 January 2015 to 31 December 2019

Download | DOI: 10.52107/mrc.ajg4si | Published on: 05 May 2020 | Language: English

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