"At the Summit of Olympus Mons
Credit: G. Neukum (FU Berlin) et al., DLR, ESA
From martian orbit, the Mars Express cameras looked down on the largest volcano in the solar system. The result was this stunningly detailed overhead view of the…"
SWMM5 - Stormwater Management Model
SWMM 5, InfoSWMM, H20MAP SWMM, InfoSewer for Water Quality,Hydrology, Hydraulics
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Robert Dickinson replied to Robert Dickinson's discussion How is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5?"Subject: Link Iterations in the SWMM 5 Dynamic Wave Solution
Each of the links in the SWMM 5 network can use up to 8 iterations to reach convergence during a time step in the dynamic wave solution of SWMM 5. The rules…"
Robert Dickinson left a comment for wu ze jian"Hi, I added this discussion http://swmm2000.com/forum/topics/how-is-the-st-venant-equation-solved-for-in-the-dynamic-wave-solu"
Robert Dickinson posted a discussionHow is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5?
Subject: How is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5? An explanation of the four St. Venant Terms in SWMM 5 and how they change for Gravity Mains and Force Mains. The HGL is the water surface elevation in the upstream and downstream nodes of the link. The HGL for a full link goes from the pipe crown elevation up to the rim elevation of the node + the surcharge depth of the node. The four terms are: dq2 = Time Step * Awtd * (Head Downstream – Head Upstream)…See More
Robert Dickinson added a page to the group Hydraulics
Force Main Friction Loss in InfoSWMM and the Transition from Partial to Full Flow
Subject: Force Main Friction Loss in InfoSWMM and the Transition from Partial to Full Flow
You can model Force Main friction loss in InfoSWMM using either Darcy Weisbach or Hazen Williams as the full pipe friction loss method (see Figure 1 for the…
Robert Dickinson's blog post was featuredSWMM 5 Precipitation Options
Subject: SWMM 5 Precipitation Options You can have design storms, monitored storms of any length of the time from minutes to centuries, use intensity, volume or cumulative precipitation, use both rainfall and snowfall in the same rain gage depending on temperature, use both time series or external files for the rain gage and have unlimited rain gages with the limitation of one rain gage per subcatchment. …See More
Robert Dickinson posted a blog postSWMM 5 Precipitation Options
Subject: SWMM 5 Precipitation Options You can have design storms, monitored storms of any length of the time from minutes to centuries, use intensity, volume or cumulative precipitation, use both rainfall and snowfall in the same rain gage depending on temperature, use both time series or external files for the rain gage and have unlimited rain gages with the limitation of one rain gage per subcatchment. …See More
Robert Dickinson commented on Robert Dickinson's group Stream of Information"Pacheena Indian Reserve, British Columbia, Canada
May. 25, 2012
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Robert Dickinson commented on Robert Dickinson's group Stream of Information"All the Water on Europa Illustration Credit & Copyright: Kevin Hand (JPL/Caltech), Jack Cook (Woods Hole Oceanographic Institution), Howard Perlman (USGS)
Explanation: How much of Jupiter's moon…"
Robert Dickinson commented on Robert Dickinson's group Water Quality"URBAN STORMWATER QUANTITY/QUALITY MODELING USING THE SCS METHOD AND EMPIRICAL EQUATIONS†
http://onlinelibrary.wiley.com/doi/10.1111/j.1752-1688.1997.tb04093.x/abstract
May 24, 2012
Wiley Online Library will be disrupted on 26 May from…"
Robert Dickinson commented on Robert Dickinson's group Water Quality"Hi MeHa, Here is one good source of data, I also have the SWMM 5 models for the USGS areas.
http://www.1000friendsofflorida.org/pubs/stmarksgreen/apend4.asp
http://sofia.usgs.gov/publications/ofr/78-324/ofr-78-324.pdf
"
MeHa commented on Robert Dickinson's group Water Quality"I want to model WQ of sewers. Can any body provide me a network with real measured calibration files? "
MeHa posted a status"Hello, When designing a sewer system, we consider the Node Flooding and Conduit surcharge in the status report. Is there any guideline which"
Quah Soon Tong left a comment for Esther Bergareche Auricenea"Hi Esther, I am not sure you are the same Esther that was at the United World College in South Wales with me. I am Quah Soon Tong from Singapore. I noticed you are also an engineer. I did Civil Engineering at Cambridge University, but practised as…"
Robert Dickinson commented on Robert Dickinson's group Stream of Information"River Canyon
May. 23, 2012
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Robert Dickinson commented on Robert Dickinson's group Stream of Information"Litla Dimun, Faroe Islands
May. 23, 2012
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100 Incredible Views Out Of Airplane Windows - From Buzzfeed
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100 Incredible Views Out Of Airplane Windows
CULTURE BUZZ Inspired by Andrew Sullivan’s airplane window picture series, here's a very large collection of awesome pictures taken out of airplane windows. I need to go on a vacation. http://www.buzzfeed.com/mjs538/100-incredible-views-out-of-airplane...
1. London, England
2. Mount Everest and Makalu, Nepal
3. Cargill Salt Ponds in San Francisco Bay
4. Skagway, Alaska
5. The Alps
6. Sokongen Island, Greenland
7. Midwest, USA
8. Lagos, Nigeria
9. Mount Ranier, Washington
10. Madison, Wisconsin
11. New York, New York
12. Midwest, USA
13. Greenland
14. Mount Pico, Portugal
15. Mount St. Helen, Washington
16. St. Elias Icefields, Greenland
17. Cairo, Egypt
18. San Luis Obispo County, California
19. Fuel depot explosion in 2006. London, England.
20. Southern Wisconsin
21. Austria sunrise
22. Selangor River, Malaysia
23. Grand Canyon, Arizona
24. Great Salt Lake, Utah
25. Talbot Bay, Australia
26. Oahu, Hawaii
27. Great Plains, USA
28. Bali, Indonesia
29. Nebraska, USA
30. Los Angeles, California
31. Lima, Peru
32. Koh Samui, Thailand
33. San Francisco Bay, USA
34. Shanghai, China
35. Queenstown, New Zealand
36. Mount Fuji, Japan
37. San Francisco, California
38. Cuyama Valley, California
39. Cape Verde, Africa
40. Phucket, Thailand
41. Alberta, Canada
42. Yenesei River, Russia
43. Outside Paris, France
44. Casabermeja, Spain
45. The Bavarian Countryside, Germany
46. Atkinson, Nebraska
47. Mauritius
48. Hong Kong, China
49. Outside Narita, Japan
50. Lake Nasser, Egypt
51. Derby, Washington
52. Austria
53. Wisconsin, USA
54. East of Madrid, Spain
55. Outside of Paris, France
56. Cascais, Portugal
57. Bombay, India
58. Montana, USA
59. Pyramid Lake, Nevada
60. Utah, USA
61. Table Mountain, South Africa
62. Luanda, Angola
63. Crater Lake, Tanzania
64. Marrakech, Morocco
65. Marsa el Brega, Libya
66. Cape Town, South Africa
67. Lencois Maranhenses, Brazil
68. Rio de Janeiro, Brazil
69. Singapore
70. Near Anchorage, Alaska
71. Okushiri, Japan
72. Downtown Doha, Qatar
73. Tehran, Iran
74. Lake Baikal, Siberia
75. Hong Kong, China
76. Somewhere between Salt Lake and Paris
77. El Alto, Bolivia
78. Outskirts of Lima, Peru
79. Ushuaia, Argentina
80. Guyana
81. Atacama, Chile
82. Tierra del Fuego, Argentina
83. The Amazon
84. Mexico City
85. Chicago, Illinois
86. Blue Mountains, Australia
87. Abu Dhabi, UAE
88. Dahan-e Darreh Chasht, Afghanistan
89. Palawan, Philippines
90. Mt McLoughlin, Oregon
91. Colorado, USA
92. Mount Bogeda, China
93. Chara, Siberia
94. Curonian Split (shared between Lithuania and Russia)
95. Kronotsky volcano, Kamchatka.
96. Panama
97. Northeast coast of Sicily
98. Western Sudan
99. Winslow, Arizona
100. Izalco, San Salvador
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