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124 results for “Mekong River”
RAPID Model Input Files for Mekong-Indus-Ganges-Brahmaputra-Megna (MIGBM) River Basins
<p>This database contains Inputs and intermediate files of the RAPID model pre-processor (RRR), and also outputs from the RRR (<em>i.e.</em>, Inputs for RAPID); which were used by <em>Sikder et al.</em> [2019] to assess the performance of available global LSM runoffs in South and Southeast Asian river basins. If you use this RAPID Model Input Files for Mekong-Indus-Ganges-Brahmaputra-Megna (MIGBM) River Basins in your work, please cite: <em>Sikder et al.</em>, [2019], Evaluation of Available Global Runoff Datasets Through a River Model in Support of Transboundary Water Management in South and Southeast Asia, Front. Environ. Sci., 7:171, <a href="https://doi.org/10.3389/fenvs.2019.00171">https://doi.org/10.3389/fenvs.2019.00171</a>.</p> <p>The database contains;</p> <ul> <li>Global River basin and Network Shapefiles: HydroSHEDS.tar.gz</li> <li>Extracted Basin Shapefile: MIGBM_basin.tar.gz</li> <li>Extracted River Network Shapefiles: MIGBM_<strong><em>res</em></strong>_ntwk.tar.gz (Note: <strong><em>res</em></strong> = fine or coarse)</li> <li>Catchment Files: rapid_catchment_as_<strong><em>riv</em></strong>_res.csv (Note: <strong><em>res</em></strong> = fine or coarse)</li> <li>Connectivity Files: rapid_connect_<strong><em>res</em></strong>_MIGBM.csv (Note: <strong><em>res</em></strong> = fine or coarse)</li> <li>Coordinate Files: coords_<strong><em>res</em></strong>_MIGBM.csv (Note: <strong><em>res</em></strong> = fine or coarse)</li> <li>Base Parameter Files: <strong><em>p</em></strong>fac_<strong><em>res</em></strong>_MIGBM_1km_hour.csv (Note: <strong><em>p</em></strong> = k or x; <strong><em>res</em></strong> = fine or coarse)</li> <li>Sort Files: sort_<strong><em>res</em></strong>_MIGBM_topo.csv (Note: <strong><em>res</em></strong> = fine or coarse)</li> <li>Sorted Basin Files: riv_bas_id_<strong><em>res</em></strong>_MIGBM_topo.csv (Note: <strong><em>res</em></strong> = fine or coarse)</li> <li>Coupling Files: rapid_coupling.tar.gz</li> <li>Parameter Files: rapid_param.tar.gz</li> <li>Volume Files: m3_riv_<strong><em>res</em></strong>_MIGBM_20000101_20091231_<strong><em>prj</em></strong>_<strong><em>LSMsr</em></strong>_<strong><em>tr</em></strong>_utc.nc (Note: <strong><em>res</em></strong> = fine or coarse; <strong><em>prj</em></strong> = GLDAS or GLDAS.2.0 or GLDAS.2.1 or ECMWF; <strong><em>LSM</em></strong> = CLM, MOS, NOAH, VIC, ERAint; <strong><em>sr</em></strong> = 10 or 025; <strong><em>tr</em></strong> = 3H or D)</li> </ul> <p> </p> <p>Other necessary links associated with this database:</p> <p>RAPID model: <a href="https://github.com/c-h-david/rapid">https://github.com/c-h-david/rapid</a></p> <p>RAPID model pre-processor (rrr): <a href="https://github.com/c-h-david/rrr">https://github.com/c-h-david/rrr</a></p> <p>GLDAS outputs: <a href="https://disc.gsfc.nasa.gov/datasets?keywords=GLDAS">https://disc.gsfc.nasa.gov/datasets?keywords=GLDAS</a></p> <p>ECMWF outputs: <a href="https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era-interim-land">https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era-interim-land</a></p> <p> </p> <p>References:</p> <p>Balsamo, G., Albergel, C., Beljaars, A., Boussetta, S., Brun, E., Cloke, H., et al. [2015], ERA-Interim/Land: a global land surface reanalysis data set, Hydrol. Earth Syst. Sci., 19, 389–407, <a href="https://doi.org/10.5194/hess-19-389-2015">https://doi.org/10.5194/hess-19-389-2015</a></p> <p>David, C. H., D. R. Maidment, G. Y. Niu, Z. L. Yang, F. Habets, and V. Eijkhout [2011], River network routing on the NHDPlus dataset, J. Hydrometeorol., 12, 913–934, <a href="https://doi.org/10.1175/2011JHM1345.1">https://doi.org/10.1175/2011JHM1345.1</a></p> <p>Rodell, M., P. R. Houser, U. Jambor, J. Gottschalck, K. Mitchell, C.-J. Meng, et al. [2004], The global land data assimilation system, Bull. Am. Meteorol. Soc. 85, 381–394, <a href="https://doi.org/10.1175/BAMS-85-3-381">https://doi.org/10.1175/BAMS-85-3-381</a></p> <p>Sikder, M. S., C. H. David, G. H. Allen, X. Qiao, E. J. Nelson, and M. A. Matin [2019], Evaluation of Available Global Runoff Datasets Through a River Model in Support of Transboundary Water Management in South and Southeast Asia, Front. Environ. Sci., 7:171, <a href="https://doi.org/10.3389/fenvs.2019.00171">https://doi.org/10.3389/fenvs.2019.00171</a></p>
Climatic and Anthropogenic Controls on Groundwater Dynamics in the Mekong River Basin
<p>Datasets for the paper (Climatic and Anthropogenic Controls on Groundwater Dynamics in the Mekong River Basin)-</p> <ul> <li>Observed streamflow data from Mekong River Commission (MRC)</li> <li>Groundwater observations from Tiwari et al., (2023; Sci. Data)</li> <li>Groundwater simulation outputs from CLM5 for Mekong River Basin.</li> </ul>
Stochastic modeling of sediment connectivity for reconstructing sand fluxes and origins in the unmonitored Se Kong, Se San, and Sre Pok tributaries of the Mekong River
<p>Sediment supply to rivers, subsequent fluvial transport, and the resulting connectivity on network-scales are often sparsely monitored or subject to major uncertainty. Hence, we propose to adopt stochastic modeling approaches for studying network sediment connectivity. We demonstrate such a stochastic approach for modeling sand connectivity in the major, poorly monitored Se Kong, Se San, and Sre Pok (3S) tributaries of the Mekong River. Specifically, we run many random initializations of the CASCADE modeling framework for sediment connectivity in a Monte Carlo approach in order to quantify how unknown properties of sediment sources translate into uncertainty regarding network sediment connectivity. We identify a reduced ensemble of model realizations that reproduces downstream observations of sediment transport. This ensemble presents an inverse stochastic approximation of the spatial distribution, magnitude, and variability of transport capacity, sediment flux, and bed material grain size in the entire network (i.e., upscaling point observations to the entire network). The approximated magnitude of sediment flux in each tributary is controlled by reaches of low transport capacity (“bottlenecks”). These “bottlenecks” limit the ability of the inverse stochastic approximation to predict sediment transport in the upper parts of the catchment but they allow a clear partitioning of sand deliveries from the 3S to the Mekong, with the Se Kong delivering less (1.9 Mt/yr) and coarser (median grain size: 0.4 mm) sand than the Se San (5.3 Mt/yr, 0.22 mm) and Sre Pok (11 Mt/yr, 0.19 mm).</p>
Fig. 3 in Mongolodiaptomus mekongensis, a new species of copepod (Copepoda, Calanoida, Diaptomidae) from temporary waters in the floodplain of the lower Mekong River Basin
Fig. 3. Mongolodiaptomus mekongensis, new species, female. A, antenna; B, mandible; C, maxillule; D, maxilla; E, maxilliped. Scale bar = 100 µm.
Fig. 7 in Mongolodiaptomus mekongensis, a new species of copepod (Copepoda, Calanoida, Diaptomidae) from temporary waters in the floodplain of the lower Mekong River Basin
Fig. 7. Mongolodiaptomus mekongensis, new species, male. A, P5 in posterior view; B, P5 in anterior view. Scale bar = 100 μm.
Fig. 2 in Mongolodiaptomus mekongensis, a new species of copepod (Copepoda, Calanoida, Diaptomidae) from temporary waters in the floodplain of the lower Mekong River Basin
Fig. 2. Mongolodiaptomus mekongensis, new species, SEM photographs of female (A–I). A, habitus, dorsal view; B, rostrum, frontal view; C, pediger 5 and urosome, dorsal view (white arrow pointed to spines); D, caudal rami, ventral view; E, P5 in anterior view; F, P5 in posterior view; G, P5 Exp-2–3 in anterior view; H, P5 Exp-2–3 in posterior view; I, Enp-1–2 in anterior view, white arrow indicates the segmented Enp.
Fig. 8 in Mongolodiaptomus mekongensis, a new species of copepod (Copepoda, Calanoida, Diaptomidae) from temporary waters in the floodplain of the lower Mekong River Basin
Fig. 8. Distribution map of Mongolodiaptomus mekongensis, new species, in the lower Mekong River Basin. A, species distribution in southeast Asia indicates with different coloured circles (Thailand: violet = Ubon Ratchathani Province; Laos: blue = Champasak Province; Cambodia: green = Steung Treng Province, yellow = Kratié Province, red = Kampong Thom Province, white = Siem Reap Province, black = Battambang Province; Vietnam: grey = Binh Phuoc Province); B, species distribution in Ubon Ratchathani Province from Thailand (an area of Ubon Ratchathani indicated with shaded black in A), 1–31 = sampling site.
Fig. 1 in Mongolodiaptomus mekongensis, a new species of copepod (Copepoda, Calanoida, Diaptomidae) from temporary waters in the floodplain of the lower Mekong River Basin
Fig. 1. Mongolodiaptomus mekongensis, new species, female. A, habitus, dorsal view; B, rostrum anterior view; C, pediger 5 and urosome, dorsal view; D, urosome, ventral view (without caudal rami); E, pediger 5 and urosome, right lateral view (without caudal rami); F, pediger 5 and urosome, left lateral view (without caudal rami); G, antennule. Scale bar = 200 µm.
Fig. 5 in Mongolodiaptomus mekongensis, a new species of copepod (Copepoda, Calanoida, Diaptomidae) from temporary waters in the floodplain of the lower Mekong River Basin
Fig. 5. Mongolodiaptomus mekongensis, new species, SEM photographs, male (A–M). A, habitus, dorsal view; B, lateral wings, genital somite, and urosomites 2–3, dorsolateral view (white arrow pointed to spines and black one pointed to seta); C, pediger 5, genital somite, and urosomites 2–3, dorsal view; D, right caudal ramus, ventral view (white arrow pointed spiniform process); E, P5 in posterior view; F, the right coxal spine, and basis of P5 in posterior view (white arrow pointed to spiniform process on posterior lobe); G, intercoxal plate, and basis of P5 in posterior view (white arrow pointed to hyaline membranes); H, the right P5 Exp-1–2 and Enp in posterior view; I, the right P5 Exp-1–2 in anterior view (white arrow pointed to spiniform processes); J, the left P5 basis, Exp and Enp in posterior view (white arrow pointed to longitudinal chitinous ridge); K, the left P5 Exp-1–3 and Enp in posterior view; L, P5 in anterior view; M, the left P5 Exp and Enp in anterior view.
Fig. 6 in Mongolodiaptomus mekongensis, a new species of copepod (Copepoda, Calanoida, Diaptomidae) from temporary waters in the floodplain of the lower Mekong River Basin
Fig. 6. Mongolodiaptomus mekongensis, new species, male. A, habitus, dorsal view; B, urosome, right lateral view; C, urosome, ventral view (black arrows indicate chitinous spines and ridge on right caudal ramus); D, the right antennule: D1, segment 1–12; D2, segment 13–22. Scale bar = 100 µm.
Fig. 6 in A new species of copepod (Copepoda: Calanoida) from the floodplain of the lower Mekong River Basin in Thailand and Cambodia, with an amended diagnosis of the genus Dentodiaptomus Shen & Tai, 1964
Fig. 6. Dentodiaptomus orientalis, new species, female: A, habitus, dorsal view; B, pediger 4–5 and urosome, dorsal view; C, P5, posterior view; D, left P5 Exp-2–3, posterior view; E, P5, frontal view.
Fig. 3 in A new species of copepod (Copepoda: Calanoida) from the floodplain of the lower Mekong River Basin in Thailand and Cambodia, with an amended diagnosis of the genus Dentodiaptomus Shen & Tai, 1964
Fig. 3. Dentodiaptomus orientalis, new species, male: A, habitus, dorsal view; B, urosome, dorsal view; C, urosome, ventral view; D, right antennule (segments I–XXII).
Fig. 8 in A new species of copepod (Copepoda: Calanoida) from the floodplain of the lower Mekong River Basin in Thailand and Cambodia, with an amended diagnosis of the genus Dentodiaptomus Shen & Tai, 1964
Fig. 8. Dentodiaptomus javanus (A–F) and Phyllodiaptomus (Ctenodiaptomus) praedictus (G–H), male: A, habitus, dorsal view; B, C, G, P5, posterior view; D, right P5 basis and Exp-1, posterior view; E, right P5 Exp-2, posterior view; F, left P5 basis, Exp (white arrow points to a denticle on the inner margin of the Exp-2), and Enp, frontal view; H, intercoxal sclerite and left P5, posterior view.
Fig. 4 in A new species of copepod (Copepoda: Calanoida) from the floodplain of the lower Mekong River Basin in Thailand and Cambodia, with an amended diagnosis of the genus Dentodiaptomus Shen & Tai, 1964
Fig. 4. Dentodiaptomus orientalis, new species, male: A, left antennule; B, antenna; C, mandible; D, maxillule; E, maxilla; F, maxilliped.
Fig. 1. A in A new species of copepod (Copepoda: Calanoida) from the floodplain of the lower Mekong River Basin in Thailand and Cambodia, with an amended diagnosis of the genus Dentodiaptomus Shen & Tai, 1964
Fig. 1. A map showing the distribution of Dentodiaptomus orientalis, new species, from Thailand and Cambodia. Legend: black triangle = sampling location, black circle = city name.
Fig. 2 in A new species of copepod (Copepoda: Calanoida) from the floodplain of the lower Mekong River Basin in Thailand and Cambodia, with an amended diagnosis of the genus Dentodiaptomus Shen & Tai, 1964
Fig. 2. Dentodiaptomus orientalis, new species, male: A, habitus, dorsal view; B, P5, posterior view; C, P5, frontal view; D, left P5 Enp and Exp, posterior view.
Fig. 7 in A new species of copepod (Copepoda: Calanoida) from the floodplain of the lower Mekong River Basin in Thailand and Cambodia, with an amended diagnosis of the genus Dentodiaptomus Shen & Tai, 1964
Fig. 7. Dentodiaptomus orientalis, new species, female: A, pediger 5 and genital double-somite, dorsal view; B, P5, posterior view; C, P5, frontal view.
Рис. 4. Фотографии Daptonema lissum sp. nov., гоΛотип самца (b, c, d, h, i) и паратип самки (a, e, f, g): a — общий виΑ; b — переΑний конец теΛа; c, d, e — гоΛова; f — теΛо в обΛасти вуΛьвы; g — заΑний конец теΛа; h, i — терминус хвоста Fig. 4. Light micrograph of Daptonema lissum sp. nov., male holotype (b, c, d, h, i) and female paratype (a, e, f, g): a — general view; b — anterior body end; c, d, e — head; f — vulva region; g — posterior body end; h, i — tail terminus in Two new species of free-living nematodes (Nematoda, Monhysterida) from Mekong River mouth, Vietnam
Рис. 4. Фотографии Daptonema lissum sp. nov., гоΛотип самца (b, c, d, h, i) и паратип самки (a, e, f, g): a — общий виΑ; b — переΑний конец теΛа; c, d, e — гоΛова; f — теΛо в обΛасти вуΛьвы; g — заΑний конец теΛа; h, i — терминус хвоста Fig. 4. Light micrograph of Daptonema lissum sp. nov., male holotype (b, c, d, h, i) and female paratype (a, e, f, g): a — general view; b — anterior body end; c, d, e — head; f — vulva region; g — posterior body end; h, i — tail terminus
Рис. 1. Sphaerotheristus rivalis sp. nov., гоΛотип самца (a, c, d) и паратип самки (b, e): a — гоΛова; b — обΛасть вуΛьвы; c, e — заΑний конец теΛа; d — спикуΛа Fig. 1. Sphaerotheristus rivalis sp. nov., male holotype (a, c, d) and female paratype (b, e): a — head; b — vulva region; c, e — posterior body end; d — spicule in Two new species of free-living nematodes (Nematoda, Monhysterida) from Mekong River mouth, Vietnam
Рис. 1. Sphaerotheristus rivalis sp. nov., гоΛотип самца (a, c, d) и паратип самки (b, e): a — гоΛова; b — обΛасть вуΛьвы; c, e — заΑний конец теΛа; d — спикуΛа Fig. 1. Sphaerotheristus rivalis sp. nov., male holotype (a, c, d) and female paratype (b, e): a — head; b — vulva region; c, e — posterior body end; d — spicule
Рис. 2. Фотографии Sphaerotheristus rivalis sp. nov., гоΛотип самца (a, c, d, e, g, k, l) и паратип самки (b, f, h, i): a, b — общий виΑ; c — переΑний конец теΛа; d, e, f — гоΛова; g — обΛасть кΛоаки; h — обΛасть вуΛьвы; i, k — заΑний конец теΛа; l — терминус хвоста Fig. 2. Light micrograph of Sphaerotheristus rivalis sp. nov., male holotype (a, c, d, e, g, k, l) and female paratype (b, f, h, i): a, b — general view; c — anterior body end; d, e, f — head; g — cloaca region; h — vulva region; i, k — posterior body end; l — tail terminus in Two new species of free-living nematodes (Nematoda, Monhysterida) from Mekong River mouth, Vietnam
Рис. 2. Фотографии Sphaerotheristus rivalis sp. nov., гоΛотип самца (a, c, d, e, g, k, l) и паратип самки (b, f, h, i): a, b — общий виΑ; c — переΑний конец теΛа; d, e, f — гоΛова; g — обΛасть кΛоаки; h — обΛасть вуΛьвы; i, k — заΑний конец теΛа; l — терминус хвоста Fig. 2. Light micrograph of Sphaerotheristus rivalis sp. nov., male holotype (a, c, d, e, g, k, l) and female paratype (b, f, h, i): a, b — general view; c — anterior body end; d, e, f — head; g — cloaca region; h — vulva region; i, k — posterior body end; l — tail terminus
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