/* DATA DESCRIPTION: Citation: Hasberg, Ascelina; Bijaksana, Satria; Held, Peter; Just, Janna; Melles, Martin; Morlock, Marina A; Opitz, Stephan; Russell, James M; Vogel, Hendrik; Wennrich, Volker (2020): Non-destructive particle analyses from different surface sediment samples of Lake Towuti, Indonesia [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.914843 Abstract: At the University of Cologne, Germany, a subsample was taken from one aliquot and used to produce smear slides for identification of sedimentary components using transmitted light microscopy. On selected samples, sponge spicules and diatom frustules were additionally investigated using a Zeiss Gemini Sigma 300VP scanning electron microscope (SEM; Carl Zeiss AG, Oberkochen, Germany). Furthermore, some magnetic mineral grains were identified with energy dispersive X-ray spectroscopy (EDX) of the Sigma SEM system. Based on smear slide analyses, a set of 40 samples that contain sponge spicules, diatoms and/or tephra particles were selected for automated, non-destructive particle image analyses using a dynamic imaging system (Benchtop B3 Series VS FlowCAM®; Fluid Imaging Technologies, Inc., Scarborough, ME, USA) to quantify the abundance of these particles. Aliquots of wet bulk samples were treated with hydrogen peroxide (H2O2; 30%) for seven days at room temperature to remove organic matter (OM) and disaggregate the siliceous biogenic particles, and were subsequently sieved with 25 and 80 µm meshes. The pre-treated sample fractions were diluted with deionized water (samples <25 µm) or polyvinyl pyrrolidone (PVP, 2 %; samples 25 to 80 µm and >80 µm). Particle recording in the <25 µm and 25 to 80 µm fractions was carried out using a 100 µm flowcell, a 10x objective lens with a collimator, and a 1 ml syringe-pump (flow rate 0.3 ml/min), whereas the >80 µm fraction was recorded using a 300 µm flowcell, a 4x objective lens without collimator, and a 5 ml syringe-pump (flow rate 0.6 ml/min). Data were acquired using the software VisualSpreadsheet (Fluid Imaging Technologies, Inc., Scarborough, ME, USA) until 10.000 images were recorded or 30 ml of the sample was investigated. An automated catalogue based on training sets developed for sponge spicules, diatoms and tephra particles was compiled to differentiate and group components with comparable characteristics in the measured sample fractions. Keyword(s): Indo-Pacific Warm Pool (IPWP); Lake Towuti; modern sedimentation; provenance analysis; Redox conditions; tropical lake Related to: Hasberg, Ascelina; Bijaksana, Satria; Held, Peter; Just, Janna; Melles, Martin; Morlock, Marina A; Opitz, Stephan; Russell, James M; Vogel, Hendrik; Wennrich, Volker (2019): Modern sedimentation processes in Lake Towuti, Indonesia, revealed by the composition of surface sediments. Sedimentology, 66(2), 675-698, https://doi.org/10.1111/sed.12503 Coverage: MEDIAN LATITUDE: -2.759479 * MEDIAN LONGITUDE: 121.512143 * SOUTH-BOUND LATITUDE: -2.932300 * WEST-BOUND LONGITUDE: 120.951200 * NORTH-BOUND LATITUDE: -2.652500 * EAST-BOUND LONGITUDE: 121.664700 MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m Event(s): Lake_Towuti-01 * LATITUDE: -2.668200 * LONGITUDE: 121.420600 * LAKE WATER DEPTH: 6.3 m Lake_Towuti-02 * LATITUDE: -2.652500 * LONGITUDE: 121.441000 * LAKE WATER DEPTH: 5.4 m Lake_Towuti-03 * LATITUDE: -2.669200 * LONGITUDE: 121.454800 * LAKE WATER DEPTH: 48.4 m Lake_Towuti-04 * LATITUDE: -2.687500 * LONGITUDE: 121.452600 * LAKE WATER DEPTH: 97.5 m Lake_Towuti-05 * LATITUDE: -2.654700 * LONGITUDE: 121.477500 * LAKE WATER DEPTH: 47.1 m Lake_Towuti-06 * LATITUDE: -2.673100 * LONGITUDE: 121.482400 * LAKE WATER DEPTH: 7.5 m Lake_Towuti-07 * LATITUDE: -2.671200 * LONGITUDE: 121.454800 * LAKE WATER DEPTH: 62.4 m Lake_Towuti-08 * LATITUDE: -2.667900 * LONGITUDE: 121.521800 * LAKE WATER DEPTH: 49 m Lake_Towuti-09 * LATITUDE: -2.678800 * LONGITUDE: 121.526600 * LAKE WATER DEPTH: 96.4 m Lake_Towuti-10 * LATITUDE: -2.669300 * LONGITUDE: 121.517800 * LAKE WATER DEPTH: 72.6 m Lake_Towuti-11 * LATITUDE: -2.682800 * LONGITUDE: 121.512800 * LAKE WATER DEPTH: 83.4 m Lake_Towuti-12 * LATITUDE: -2.694300 * LONGITUDE: 121.521000 * LAKE WATER DEPTH: 124.7 m Lake_Towuti-13 * LATITUDE: -2.683600 * LONGITUDE: 121.545200 * LAKE WATER DEPTH: 140 m Lake_Towuti-14 * LATITUDE: -2.688300 * LONGITUDE: 121.533500 * LAKE WATER DEPTH: 125.4 m Lake_Towuti-15 * LATITUDE: -2.674300 * LONGITUDE: 121.556900 * LAKE WATER DEPTH: 171.2 m Lake_Towuti-16 * LATITUDE: -2.685300 * LONGITUDE: 121.563500 * LAKE WATER DEPTH: 174.9 m Lake_Towuti-17 * LATITUDE: -2.695700 * LONGITUDE: 121.585100 * LAKE WATER DEPTH: 195.5 m Lake_Towuti-18 * LATITUDE: -2.665500 * LONGITUDE: 121.528100 * LAKE WATER DEPTH: 3.5 m Lake_Towuti-19 * LATITUDE: -2.693500 * LONGITUDE: 121.486800 * LAKE WATER DEPTH: 123.7 m Lake_Towuti-20 * LATITUDE: -2.701500 * LONGITUDE: 121.443900 * LAKE WATER DEPTH: 75.6 m Lake_Towuti-21 * LATITUDE: -2.704800 * LONGITUDE: 121.481600 * LAKE WATER DEPTH: 144.7 m Lake_Towuti-22 * LATITUDE: -2.701900 * LONGITUDE: 121.559200 * LAKE WATER DEPTH: 171.4 m Lake_Towuti-23 * LATITUDE: -2.677800 * LONGITUDE: 121.586900 * LAKE WATER DEPTH: 177.9 m Lake_Towuti-24 * LATITUDE: -2.675300 * LONGITUDE: 121.638400 * LAKE WATER DEPTH: 133.3 m Lake_Towuti-25 * LATITUDE: -2.697600 * LONGITUDE: 121.659900 * LAKE WATER DEPTH: 129.2 m Lake_Towuti-26 * LATITUDE: -2.716800 * LONGITUDE: 121.627200 * LAKE WATER DEPTH: 137.7 m Lake_Towuti-27 * LATITUDE: -2.727400 * LONGITUDE: 121.656900 * LAKE WATER DEPTH: 59.3 m Lake_Towuti-28 * LATITUDE: -2.711400 * LONGITUDE: 121.607300 * LAKE WATER DEPTH: 194.5 m Lake_Towuti-29 * LATITUDE: -2.714600 * LONGITUDE: 121.581700 * LAKE WATER DEPTH: 172.1 m Lake_Towuti-30 * LATITUDE: -2.707900 * LONGITUDE: 121.540300 * LAKE WATER DEPTH: 147.6 m Lake_Towuti-31 * LATITUDE: -2.711300 * LONGITUDE: 121.518000 * LAKE WATER DEPTH: 147.4 m Lake_Towuti-32 * LATITUDE: -2.716500 * LONGITUDE: 121.494900 * LAKE WATER DEPTH: 153.7 m Lake_Towuti-33 * LATITUDE: -2.717300 * LONGITUDE: 121.466600 * LAKE WATER DEPTH: 100.4 m Lake_Towuti-34 * LATITUDE: -2.718200 * LONGITUDE: 121.559300 * LAKE WATER DEPTH: 141.1 m Lake_Towuti-35 * LATITUDE: -2.724600 * LONGITUDE: 121.535800 * LAKE WATER DEPTH: 154 m Lake_Towuti-36 * LATITUDE: -2.726500 * LONGITUDE: 121.508900 * LAKE WATER DEPTH: 157.7 m Lake_Towuti-37 * LATITUDE: -2.731500 * LONGITUDE: 121.481000 * LAKE WATER DEPTH: 146.5 m Lake_Towuti-38 * LATITUDE: -2.737600 * LONGITUDE: 121.456100 * LAKE WATER DEPTH: 78.5 m Lake_Towuti-39 * LATITUDE: -2.663600 * LONGITUDE: 121.664700 * LAKE WATER DEPTH: 101.1 m Lake_Towuti-40 * LATITUDE: -2.752500 * LONGITUDE: 121.464200 * LAKE WATER DEPTH: 101.2 m Lake_Towuti-41 * LATITUDE: -2.742800 * LONGITUDE: 121.497100 * LAKE WATER DEPTH: 130.1 m Lake_Towuti-42 * LATITUDE: -2.739700 * LONGITUDE: 121.524500 * LAKE WATER DEPTH: 161.8 m Lake_Towuti-43 * LATITUDE: -2.733800 * LONGITUDE: 121.555100 * LAKE WATER DEPTH: 141.6 m Lake_Towuti-44 * LATITUDE: -2.731600 * LONGITUDE: 121.579900 * LAKE WATER DEPTH: 126.8 m Lake_Towuti-45 * LATITUDE: -2.730700 * LONGITUDE: 121.607900 * LAKE WATER DEPTH: 81.8 m Lake_Towuti-46 * LATITUDE: -2.744700 * LONGITUDE: 121.615000 * LAKE WATER DEPTH: 53.8 m Lake_Towuti-47 * LATITUDE: -2.745700 * LONGITUDE: 121.596000 * LAKE WATER DEPTH: 73.9 m Lake_Towuti-48 * LATITUDE: -2.758300 * LONGITUDE: 121.601700 * LAKE WATER DEPTH: 92.2 m Lake_Towuti-49 * LATITUDE: -2.758300 * LONGITUDE: 121.593500 * LAKE WATER DEPTH: 25.6 m Lake_Towuti-50 * LATITUDE: -2.784700 * LONGITUDE: 121.592000 * LAKE WATER DEPTH: 4.5 m Lake_Towuti-51 * LATITUDE: -2.795300 * LONGITUDE: 121.573600 * LAKE WATER DEPTH: 4.4 m Lake_Towuti-52 * LATITUDE: -2.777100 * LONGITUDE: 121.573900 * LAKE WATER DEPTH: 32.9 m Lake_Towuti-53 * LATITUDE: -2.756800 * LONGITUDE: 121.571700 * LAKE WATER DEPTH: 73.2 m Lake_Towuti-54 * LATITUDE: -2.743800 * LONGITUDE: 121.563300 * LAKE WATER DEPTH: 129.6 m Lake_Towuti-55 * LATITUDE: -2.755500 * LONGITUDE: 121.540500 * LAKE WATER DEPTH: 96 m Lake_Towuti-56 * LATITUDE: -2.750500 * LONGITUDE: 121.512300 * LAKE WATER DEPTH: 134.9 m Lake_Towuti-57 * LATITUDE: -2.777100 * LONGITUDE: 121.586100 * LAKE WATER DEPTH: 58.9 m Lake_Towuti-58 * LATITUDE: -2.763400 * LONGITUDE: 121.481800 * LAKE WATER DEPTH: 127.6 m Lake_Towuti-59 * LATITUDE: -2.786200 * LONGITUDE: 121.478100 * LAKE WATER DEPTH: 112 m Lake_Towuti-60 * LATITUDE: -2.815500 * LONGITUDE: 121.467000 * LAKE WATER DEPTH: 134.3 m Lake_Towuti-61 * LATITUDE: -2.826200 * LONGITUDE: 121.437300 * LAKE WATER DEPTH: 117.6 m Lake_Towuti-62 * LATITUDE: -2.856100 * LONGITUDE: 121.444400 * LAKE WATER DEPTH: 117.5 m Lake_Towuti-63 * LATITUDE: -2.874000 * LONGITUDE: 121.422000 * LAKE WATER DEPTH: 119.6 m Lake_Towuti-64 * LATITUDE: -2.891400 * LONGITUDE: 121.404500 * LAKE WATER DEPTH: 77.5 m Lake_Towuti-65 * LATITUDE: -2.932000 * LONGITUDE: 121.390400 * LAKE WATER DEPTH: 19.1 m Lake_Towuti-66 * LATITUDE: -2.921600 * LONGITUDE: 121.409500 * LAKE WATER DEPTH: 40.7 m Lake_Towuti-67 * LATITUDE: -2.905200 * LONGITUDE: 121.431300 * LAKE WATER DEPTH: 120.8 m Lake_Towuti-68 * LATITUDE: -2.884500 * LONGITUDE: 121.448100 * LAKE WATER DEPTH: 168.8 m Lake_Towuti-69 * LATITUDE: -2.862500 * LONGITUDE: 121.479800 * LAKE WATER DEPTH: 177 m Lake_Towuti-70 * LATITUDE: -2.836600 * LONGITUDE: 121.483700 * LAKE WATER DEPTH: 252 m Lake_Towuti-71 * LATITUDE: -2.807400 * LONGITUDE: 121.499000 * LAKE WATER DEPTH: 132 m Lake_Towuti-72 * LATITUDE: -2.780600 * LONGITUDE: 121.513000 * LAKE WATER DEPTH: 71.6 m Lake_Towuti-73 * LATITUDE: -2.914500 * LONGITUDE: 121.456200 * LAKE WATER DEPTH: 87.1 m Lake_Towuti-74 * LATITUDE: -2.898100 * LONGITUDE: 121.478600 * LAKE WATER DEPTH: 93.3 m Lake_Towuti-75 * LATITUDE: -2.883300 * LONGITUDE: 121.503900 * LAKE WATER DEPTH: 50.6 m Lake_Towuti-76 * LATITUDE: -2.857400 * LONGITUDE: 121.498600 * LAKE WATER DEPTH: 160 m Lake_Towuti-77 * LATITUDE: -2.848800 * LONGITUDE: 121.534400 * LAKE WATER DEPTH: 53.4 m Lake_Towuti-78 * LATITUDE: -2.832200 * LONGITUDE: 121.514500 * LAKE WATER DEPTH: 119 m Lake_Towuti-79 * LATITUDE: -2.825700 * LONGITUDE: 121.554900 * LAKE WATER DEPTH: 46.8 m Lake_Towuti-80 * LATITUDE: -2.810300 * LONGITUDE: 121.532800 * LAKE WATER DEPTH: 99.8 m Lake_Towuti-81 * LATITUDE: -2.837200 * LONGITUDE: 121.460000 * LAKE WATER DEPTH: 168.5 m Lake_Towuti-82 * LATITUDE: -2.927400 * LONGITUDE: 120.951200 * LAKE WATER DEPTH: 36.1 m Lake_Towuti-83 * LATITUDE: -2.932300 * LONGITUDE: 121.404700 * LAKE WATER DEPTH: 2.8 m Lake_Towuti-84 * LATITUDE: -2.867100 * LONGITUDE: 121.540600 * LAKE WATER DEPTH: 9.6 m Parameter(s): Event label (Event) * PI: Hasberg, Ascelina (hasberg.ascelina@gmail.com) Latitude of event (Latitude) * PI: Hasberg, Ascelina (hasberg.ascelina@gmail.com) Longitude of event (Longitude) * PI: Hasberg, Ascelina (hasberg.ascelina@gmail.com) Depth, bathymetric [m] (Bathy depth) * PI: Hasberg, Ascelina (hasberg.ascelina@gmail.com) * COMMENT: Lake water depth Station label (Station) * PI: Hasberg, Ascelina (hasberg.ascelina@gmail.com) * COMMENT: Sediment surface sample number DEPTH, sediment/rock [m] (Depth sed) * GEOCODE * PI: Hasberg, Ascelina (hasberg.ascelina@gmail.com) Particles [#] (Particles) * PI: Hasberg, Ascelina (hasberg.ascelina@gmail.com) * METHOD/DEVICE: Benchtop B3 Series VS FlowCAM * COMMENT: Tephra particle per 1000 particle Particles [#] (Particles) * PI: Hasberg, Ascelina (hasberg.ascelina@gmail.com) * METHOD/DEVICE: Benchtop B3 Series VS FlowCAM * COMMENT: Diatom particle per 1000 particle Particles [#] (Particles) * PI: Hasberg, Ascelina (hasberg.ascelina@gmail.com) * METHOD/DEVICE: Benchtop B3 Series VS FlowCAM * COMMENT: Spicule particle per 1000 particle License: Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/) Size: 288 data points */ Event Latitude Longitude Bathy depth [m] (Lake water depth) Station (Sediment surface sample number) Depth sed [m] Particles [#] (Tephra particle per 1000 part...) Particles [#] (Diatom particle per 1000 part...) Particles [#] (Spicule particle per 1000 par...) Lake_Towuti-01 -2.6682 121.4206 6.3 1 0 2.442815901 0.962321415 2.590865349 Lake_Towuti-02 -2.6525 121.4410 5.4 2 0 0.594029999 1.485074996 4.801742488 Lake_Towuti-03 -2.6692 121.4548 48.4 3 0 0.649125844 0.259650338 3.505279557 Lake_Towuti-04 -2.6875 121.4526 97.5 4 0 0.570572712 0.000000000 0.499251123 Lake_Towuti-05 -2.6547 121.4775 47.1 5 0 1.190779961 0.255167134 23.135153530 Lake_Towuti-06 -2.6731 121.4824 7.5 6 0 Lake_Towuti-07 -2.6712 121.4548 62.4 7 0 0.804474410 0.076616610 8.619368679 Lake_Towuti-08 -2.6679 121.5218 49.0 8 0 1.530011769 0.078462142 4.119262456 Lake_Towuti-09 -2.6788 121.5266 96.4 9 0 Lake_Towuti-10 -2.6693 121.5178 72.6 10 0 Lake_Towuti-11 -2.6828 121.5128 83.4 11 0 Lake_Towuti-12 -2.6943 121.5210 124.7 12 0 Lake_Towuti-13 -2.6836 121.5452 140.0 13 0 Lake_Towuti-14 -2.6883 121.5335 125.4 14 0 0.945371058 0.000000000 0.371395773 Lake_Towuti-15 -2.6743 121.5569 171.2 15 0 Lake_Towuti-16 -2.6853 121.5635 174.9 16 0 2.226599298 0.042819217 0.899203563 Lake_Towuti-17 -2.6957 121.5851 195.5 17 0 0.345582306 0.076796068 1.151941021 Lake_Towuti-18 -2.6655 121.5281 3.5 18 0 Lake_Towuti-19 -2.6935 121.4868 123.7 19 0 0.435596986 0.000000000 1.001873067 Lake_Towuti-20 -2.7015 121.4439 75.6 20 0 0.533333333 0.033333333 7.966666667 Lake_Towuti-21 -2.7048 121.4816 144.7 21 0 0.478087649 0.039840637 0.677290837 Lake_Towuti-22 -2.7019 121.5592 171.4 22 0 2.621231979 0.000000000 1.048492792 Lake_Towuti-23 -2.6778 121.5869 177.9 23 0 0.925739585 0.040249547 1.046488227 Lake_Towuti-24 -2.6753 121.6384 133.3 24 0 Lake_Towuti-25 -2.6976 121.6599 129.2 25 0 Lake_Towuti-26 -2.7168 121.6272 137.7 26 0 Lake_Towuti-27 -2.7274 121.6569 59.3 27 0 0.542842826 0.083514281 18.832470350 Lake_Towuti-28 -2.7114 121.6073 194.5 28 0 0.519137288 0.047194299 2.926046534 Lake_Towuti-29 -2.7146 121.5817 172.1 29 0 0.377042313 0.000000000 2.304147465 Lake_Towuti-30 -2.7079 121.5403 147.6 30 0 Lake_Towuti-31 -2.7113 121.5180 147.4 31 0 Lake_Towuti-32 -2.7165 121.4949 153.7 32 0 0.954263513 0.000000000 0.511212596 Lake_Towuti-33 -2.7173 121.4666 100.4 33 0 Lake_Towuti-34 -2.7182 121.5593 141.1 34 0 Lake_Towuti-35 -2.7246 121.5358 154.0 35 0 1.385641292 0.000000000 0.736121936 Lake_Towuti-36 -2.7265 121.5089 157.7 36 0 Lake_Towuti-37 -2.7315 121.4810 146.5 37 0 Lake_Towuti-38 -2.7376 121.4561 78.5 38 0 0.781697848 0.000000000 4.585960707 Lake_Towuti-39 -2.6636 121.6647 101.1 39 0 Lake_Towuti-40 -2.7525 121.4642 101.2 40 0 Lake_Towuti-41 -2.7428 121.4971 130.1 41 0 0.688024081 0.000000000 3.010105354 Lake_Towuti-42 -2.7397 121.5245 161.8 42 0 Lake_Towuti-43 -2.7338 121.5551 141.6 43 0 Lake_Towuti-44 -2.7316 121.5799 126.8 44 0 Lake_Towuti-45 -2.7307 121.6079 81.8 45 0 0.592381968 0.059238197 2.251051478 Lake_Towuti-46 -2.7447 121.6150 53.8 46 0 0.348918353 0.058153059 7.908816004 Lake_Towuti-47 -2.7457 121.5960 73.9 47 0 1.178440737 0.000000000 1.860695900 Lake_Towuti-48 -2.7583 121.6017 92.2 48 0 2.114690882 0.124393581 15.176016920 Lake_Towuti-49 -2.7583 121.5935 25.6 49 0 0.944854836 8.847277100 10.565194980 Lake_Towuti-50 -2.7847 121.5920 4.5 50 0 Lake_Towuti-51 -2.7953 121.5736 4.4 51 0 1.600873204 0.582135710 1.855557577 Lake_Towuti-52 -2.7771 121.5739 32.9 52 0 Lake_Towuti-53 -2.7568 121.5717 73.2 53 0 0.956876754 0.000000000 4.337841286 Lake_Towuti-54 -2.7438 121.5633 129.6 54 0 Lake_Towuti-55 -2.7555 121.5405 96.0 55 0 0.282992171 0.000000000 3.584567494 Lake_Towuti-56 -2.7505 121.5123 134.9 56 0 Lake_Towuti-57 -2.7771 121.5861 58.9 57 0 1.446430416 0.000000000 3.375004305 Lake_Towuti-58 -2.7634 121.4818 127.6 58 0 Lake_Towuti-59 -2.7862 121.4781 112.0 59 0 0.333333333 0.000000000 2.000000000 Lake_Towuti-60 -2.8155 121.4670 134.3 60 0 Lake_Towuti-61 -2.8262 121.4373 117.6 61 0 Lake_Towuti-62 -2.8561 121.4444 117.5 62 0 Lake_Towuti-63 -2.8740 121.4220 119.6 63 0 Lake_Towuti-64 -2.8914 121.4045 77.5 64 0 Lake_Towuti-65 -2.9320 121.3904 19.1 65 0 1.230895476 0.410298492 1.538619346 Lake_Towuti-66 -2.9216 121.4095 40.7 66 0 Lake_Towuti-67 -2.9052 121.4313 120.8 67 0 Lake_Towuti-68 -2.8845 121.4481 168.8 68 0 Lake_Towuti-69 -2.8625 121.4798 177.0 69 0 Lake_Towuti-70 -2.8366 121.4837 252.0 70 0 Lake_Towuti-71 -2.8074 121.4990 132.0 71 0 Lake_Towuti-72 -2.7806 121.5130 71.6 72 0 0.524683997 0.000000000 6.582399237 Lake_Towuti-73 -2.9145 121.4562 87.1 73 0 0.435245188 0.000000000 1.886062482 Lake_Towuti-74 -2.8981 121.4786 93.3 74 0 0.098527021 0.147790532 5.960884773 Lake_Towuti-75 -2.8833 121.5039 50.6 75 0 Lake_Towuti-76 -2.8574 121.4986 160.0 76 0 Lake_Towuti-77 -2.8488 121.5344 53.4 77 0 0.512142034 0.128035509 6.231061414 Lake_Towuti-78 -2.8322 121.5145 119.0 78 0 Lake_Towuti-79 -2.8257 121.5549 46.8 79 0 1.209450996 0.043194678 4.665025269 Lake_Towuti-80 -2.8103 121.5328 99.8 80 0 Lake_Towuti-81 -2.8372 121.4600 168.5 81 0 Lake_Towuti-82 -2.9274 120.9512 36.1 82 0 0.675878642 2.778612196 19.300090120 Lake_Towuti-83 -2.9323 121.4047 2.8 83 0 Lake_Towuti-84 -2.8671 121.5406 9.6 84 0 0.734792421 1.889466226 2.466803128