doc: Retire references to the fatra and skagit servers

raster/r.fill.stats/r.fill.stats.html

@@ -222,50 +222,6 @@ <h3>Smoothing</h3>
 using the <em><a href="r.param.scale.html">r.param.scale</a></em> module
 which operates with variable-size cell neighborhoods.)
 
-<!--
-wget http://fatra.cnr.ncsu.edu/uav-lidar-analytics-course/midpines_2015_spm.las -O points.las
-
-g.region n=220220 s=218690 e=637800 w=636270 res=1
-
-r.in.lidar input=points.las output=ground method=mean class_filter=2
-
-r.fill.stats input=ground output=ground_filled mode=wmean power=2.0 cells=8
-r.fill.stats -k input=ground output=ground_filled2 mode=wmean power=2.0 cells=8
-
-r.slope.aspect elevation=ground_filled slope=slope aspect=aspect pcurvature=pcur tcurvature=tcur
-r.slope.aspect elevation=ground_filled2 slope=slope2 aspect=aspect2 pcurvature=pcur2 tcurvature=tcur2
-
-g.region n=219537 s=219172 w=636852 e=637218 -k
-
-d.mon cairo output=r_fill_gaps_smoothing.png width=1464 height=730
-export GRASS_FONT=LiberationSans-Regular
-d.frame frame=u1 at=50,100,0,25 -c
-d.rast ground_filled
-d.text text="surf. (smoothed)" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=u2 at=50,100,25,50 -c
-d.rast slope
-d.text text="slope" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=u3 at=50,100,50,75 -c
-d.rast aspect
-d.text text="aspect" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=u4 at=50,100,75,100 -c
-d.rast pcur
-d.text text="prof. curvature" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=l1  at=0,50,0,25 -c
-d.rast ground_filled2
-d.text text="surf. (preserved)" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=l2 at=0,50,25,50 -c
-d.rast slope2
-d.text text="slope" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=l3 at=0,50,50,75 -c
-d.rast aspect2
-d.text text="aspect" at=5,5 size=10 bgcolor=white color=black
-d.frame frame=l4 at=0,50,75,100 -c
-d.rast pcur2
-d.text text="prof. curvature" at=5,5 size=10 bgcolor=white color=black
-d.mon stop=cairo
--->
-
 <h3>Spatial weighting scheme</h3>
 
 The key to getting good gap filling results is to understand the
@@ -389,11 +345,6 @@ <h3>Gap-filling of a dataset using spatially weighted mean (IDW)</h3>
 
 <h3>Lidar point cloud example</h3>
 
-<!--
-Using:
-http://fatra.cnr.ncsu.edu/uav-lidar-analytics-course/midpines_2015_spm.las
--->
-
 Inspect the point density and determine the extent of the point cloud
 using the <em><a href="r.in.pdal.html">r.in.pdal</a></em> module:
 

raster/r.flow/r.flow.html

@@ -2,9 +2,9 @@ <h2>DESCRIPTION</h2>
 
 <em>r.flow</em> generates flowlines using a combined raster-vector
 approach
-(see <a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps">Mitasova
+(see <a href="https://doi.org/10.1007/BF00893172">Mitasova
 and Hofierka 1993</a>
-and <a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/ijgis.html">Mitasova
+and <a href="https://doi.org/10.1080/02693799508902048">Mitasova
 et al. 1995</a>) from an input <b>elevation</b> raster map (integer or
 floating point), and optionally an input <b>aspect</b> raster map
 and/or an input <b>barrier</b> raster map.
@@ -189,12 +189,12 @@ <h2>REFERENCES</h2>
 <ul>
 <li>Mitasova, H., L. Mitas, 1993, Interpolation by regularized spline with
 tension : I. Theory and implementation. Mathematical Geology 25, p. 641-655.
-(<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/lmg.rev1.ps">online</a>)</li>
+(<a href="https://doi.org/10.1007/BF00893171">online</a>)</li>
 
 <li>Mitasova and Hofierka 1993 : Interpolation by Regularized Spline with
 Tension: II. Application to Terrain Modeling and Surface Geometry Analysis.
 Mathematical Geology 25(6), 657-669
-(<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps">online</a>).</li>
+(<a href="https://doi.org/10.1007/BF00893172">online</a>).</li>
 
 <li>Mitasova, H., Mitas, L., Brown, W.M., Gerdes, D.P., Kosinovsky, I.,
 Baker, T., 1995: Modeling spatially and temporally distributed phenomena:
@@ -232,5 +232,3 @@ <h2>AUTHORS</h2>
 <i>The version of the program (adapted for GRASS 5.0)</i>:
 Joshua Caplan, Mark Ruesink, Helena Mitasova, University of Illinois
 at Urbana-Champaign with support from USA CERL.
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/">GMSL/University of Illinois
-at Urbana-Champaign</a>

raster/r.flow/r.flow.md

@@ -2,9 +2,9 @@
 
 *r.flow* generates flowlines using a combined raster-vector approach
 (see [Mitasova and Hofierka
-1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps) and
+1993](https://doi.org/10.1007/BF00893172) and
 [Mitasova et al.
-1995](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/ijgis.html)) from
+1995](https://doi.org/10.1080/02693799508902048)) from
 an input **elevation** raster map (integer or floating point), and
 optionally an input **aspect** raster map and/or an input **barrier**
 raster map.
@@ -146,11 +146,11 @@ map (zoomed view)
 - Mitasova, H., L. Mitas, 1993, Interpolation by regularized spline with
   tension : I. Theory and implementation. Mathematical Geology 25, p.
   641-655.
-  ([online](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/lmg.rev1.ps))
+  ([online](https://doi.org/10.1007/BF00893171))
 - Mitasova and Hofierka 1993 : Interpolation by Regularized Spline with
   Tension: II. Application to Terrain Modeling and Surface Geometry
   Analysis. Mathematical Geology 25(6), 657-669
-  ([online](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps)).
+  ([online](https://doi.org/10.1007/BF00893172)).
 - Mitasova, H., Mitas, L., Brown, W.M., Gerdes, D.P., Kosinovsky, I.,
   Baker, T., 1995: Modeling spatially and temporally distributed
   phenomena: New methods and tools for GRASS GIS. International Journal
@@ -177,6 +177,4 @@ Comenius University, Bratislava, Slovakia
 
 *The version of the program (adapted for GRASS 5.0)*: Joshua Caplan,
 Mark Ruesink, Helena Mitasova, University of Illinois at
-Urbana-Champaign with support from USA CERL. [GMSL/University of
-Illinois at
-Urbana-Champaign](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/)
+Urbana-Champaign with support from USA CERL.

raster/r.sim/r.sim.sediment/r.sim.sediment.html

@@ -54,23 +54,22 @@ <h2>NOTES</h2>
 
 <h2>REFERENCES</h2>
 
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/II.6.8_Mitasova_044.pdf">
+<a href="https://doi.org/10.1016/S0167-5648(04)80159-X">
 Mitasova, H., Thaxton, C., Hofierka, J., McLaughlin, R., Moore, A., Mitas L., 2004,</a>
 Path sampling method for modeling overland water flow, sediment transport
 and short term terrain evolution in Open Source GIS.
 In: C.T. Miller, M.W. Farthing, V.G. Gray, G.F. Pinder eds.,
 Proceedings of the XVth International Conference on Computational Methods in Water
 Resources (CMWR XV), June 13-17 2004, Chapel Hill, NC, USA, Elsevier, pp. 1479-1490.
 <p>
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/gisc00/duality.html">
 Mitasova H, Mitas, L., 2000, Modeling spatial processes in multiscale framework:
-exploring duality between particles and fields, </a>
+exploring duality between particles and fields,
 plenary talk at GIScience2000 conference, Savannah, GA.
 <p>
 Mitas, L., and Mitasova, H., 1998, Distributed soil erosion simulation
 for effective erosion prevention. Water Resources Research, 34(3), 505-516.
 <p>
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/LLEmiterev1.pdf">
+<a href="https://doi.org/10.1007/978-1-4615-0575-4_11">
 Mitasova, H., Mitas, L., 2001, Multiscale soil erosion simulations for land use management, </a>
 In: Landscape erosion and landscape evolution modeling, Harmon R. and Doe W. eds.,
 Kluwer Academic/Plenum Publishers, pp. 321-347.

raster/r.sim/r.sim.sediment/r.sim.sediment.md

@@ -42,26 +42,25 @@ up the simulation.
 
 [Mitasova, H., Thaxton, C., Hofierka, J., McLaughlin, R., Moore, A.,
 Mitas L.,
-2004,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/II.6.8_Mitasova_044.pdf)
+2004,](https://doi.org/10.1016/S0167-5648(04)80159-X)
 Path sampling method for modeling overland water flow, sediment
 transport and short term terrain evolution in Open Source GIS. In: C.T.
 Miller, M.W. Farthing, V.G. Gray, G.F. Pinder eds., Proceedings of the
 XVth International Conference on Computational Methods in Water
 Resources (CMWR XV), June 13-17 2004, Chapel Hill, NC, USA, Elsevier,
 pp. 1479-1490.
 
-[Mitasova H, Mitas, L., 2000, Modeling spatial processes in multiscale
-framework: exploring duality between particles and
-fields,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/gisc00/duality.html)
-plenary talk at GIScience2000 conference, Savannah, GA.
+Mitasova H, Mitas, L., 2000, Modeling spatial processes in multiscale
+framework: exploring duality between particles and fields, plenary talk
+at GIScience2000 conference, Savannah, GA.
 
 Mitas, L., and Mitasova, H., 1998, Distributed soil erosion simulation
 for effective erosion prevention. Water Resources Research, 34(3),
 505-516.
 
 [Mitasova, H., Mitas, L., 2001, Multiscale soil erosion simulations for
 land use
-management,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/LLEmiterev1.pdf)
+management,](https://doi.org/10.1007/978-1-4615-0575-4_11)
 In: Landscape erosion and landscape evolution modeling, Harmon R. and
 Doe W. eds., Kluwer Academic/Plenum Publishers, pp. 321-347.
 

raster/r.sim/r.sim.water/r.sim.water.html

@@ -20,13 +20,8 @@ <h2>DESCRIPTION</h2>
 to determine the direction and magnitude of water flow velocity. To include a
 predefined direction of flow, map algebra can be used to replace terrain-derived
 partial derivatives with pre-defined partial derivatives in selected grid cells such
-as man-made channels, ditches or culverts. Equations (2) and (3) from
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/reports/cerl99/rep99.html">this report</a>
-can be used to compute partial derivates of the predefined flow using its direction given
-by aspect and slope.
-
-<p>
-The equations are
+as man-made channels, ditches or culverts. The partial derivatives of the
+predefined flow are computed from its direction, given by aspect and slope:
 
 <div class="code"><pre>
 dx = tan(slope) * cos(aspect)
@@ -227,23 +222,22 @@ <h2>REFERENCES</h2>
 
 <ul>
 <li> Mitasova, H., Thaxton, C., Hofierka, J., McLaughlin, R., Moore, A., Mitas L., 2004,
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/II.6.8_Mitasova_044.pdf">
+<a href="https://doi.org/10.1016/S0167-5648(04)80159-X">
 Path sampling method for modeling overland water flow, sediment transport
 and short term terrain evolution in Open Source GIS.</a>
 In: C.T. Miller, M.W. Farthing, V.G. Gray, G.F. Pinder eds.,
 Proceedings of the XVth International Conference on Computational Methods in Water
 Resources (CMWR XV), June 13-17 2004, Chapel Hill, NC, USA, Elsevier, pp. 1479-1490.</li>
 
-<li> Mitasova H, Mitas, L., 2000,
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/gisc00/duality.html">Modeling spatial
-processes in multiscale framework: exploring duality between particles and fields,</a>
+<li> Mitasova H, Mitas, L., 2000, Modeling spatial
+processes in multiscale framework: exploring duality between particles and fields,
 plenary talk at GIScience2000 conference, Savannah, GA.</li>
 
 <li> Mitas, L., and Mitasova, H., 1998, Distributed soil erosion simulation
 for effective erosion prevention. Water Resources Research, 34(3), 505-516.</li>
 
 <li> Mitasova, H., Mitas, L., 2001,
-<a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/LLEmiterev1.pdf">
+<a href="https://doi.org/10.1007/978-1-4615-0575-4_11">
 Multiscale soil erosion simulations for land use management,</a>
 In: Landscape erosion and landscape evolution modeling, Harmon R. and Doe W. eds.,
 Kluwer Academic/Plenum Publishers, pp. 321-347.</li>

raster/r.sim/r.sim.water/r.sim.water.md

@@ -23,12 +23,8 @@ used to determine the direction and magnitude of water flow velocity. To
 include a predefined direction of flow, map algebra can be used to
 replace terrain-derived partial derivatives with pre-defined partial
 derivatives in selected grid cells such as man-made channels, ditches or
-culverts. Equations (2) and (3) from [this
-report](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/reports/cerl99/rep99.html)
-can be used to compute partial derivates of the predefined flow using
-its direction given by aspect and slope.
-
-The equations are
+culverts. The partial derivatives of the predefined flow are computed
+from its direction, given by aspect and slope:
 
 ```sh
 dx = tan(slope) * cos(aspect)
@@ -210,21 +206,20 @@ Carolina sample dataset.*
   Mitas L., 2004, [Path sampling method for modeling overland water
   flow, sediment transport and short term terrain evolution in Open
   Source
-  GIS.](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/II.6.8_Mitasova_044.pdf)
+  GIS.](https://doi.org/10.1016/S0167-5648(04)80159-X)
   In: C.T. Miller, M.W. Farthing, V.G. Gray, G.F. Pinder eds.,
   Proceedings of the XVth International Conference on Computational
   Methods in Water Resources (CMWR XV), June 13-17 2004, Chapel Hill,
   NC, USA, Elsevier, pp. 1479-1490.
-- Mitasova H, Mitas, L., 2000, [Modeling spatial processes in multiscale
-  framework: exploring duality between particles and
-  fields,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/gisc00/duality.html)
-  plenary talk at GIScience2000 conference, Savannah, GA.
+- Mitasova H, Mitas, L., 2000, Modeling spatial processes in multiscale
+  framework: exploring duality between particles and fields, plenary
+  talk at GIScience2000 conference, Savannah, GA.
 - Mitas, L., and Mitasova, H., 1998, Distributed soil erosion simulation
   for effective erosion prevention. Water Resources Research, 34(3),
   505-516.
 - Mitasova, H., Mitas, L., 2001, [Multiscale soil erosion simulations
   for land use
-  management,](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/LLEmiterev1.pdf)
+  management,](https://doi.org/10.1007/978-1-4615-0575-4_11)
   In: Landscape erosion and landscape evolution modeling, Harmon R. and
   Doe W. eds., Kluwer Academic/Plenum Publishers, pp. 321-347.
 - Hofierka, J, Mitasova, H., Mitas, L., 2002. GRASS and modeling

raster/r.sun/r.sun.html

@@ -317,7 +317,7 @@ <h2>REFERENCES</h2>
 <li> Hofierka, J., Suri, M. (2002): The solar radiation model for Open source
 GIS: implementation and applications. International
 GRASS users conference in Trento, Italy, September 2002.
-(<a href="http://skagit.meas.ncsu.edu/~jaroslav/trento/Hofierka_Jaroslav.pdf">PDF</a>)</li>
+(<a href="https://web.archive.org/web/20030805000947/http://www.ing.unitn.it/~grass/conferences/GRASS2002/proceedings/proceedings/pdfs/Hofierka_Jaroslav.pdf">PDF</a>)</li>
 <li>
 Hofierka, J. (1997). Direct solar radiation modelling within an open GIS
 environment. Proceedings of JEC-GI'97 conference in Vienna, Austria, IOS

raster/r.sun/r.sun.md

@@ -307,7 +307,7 @@ We can compute the day of year from a specific date in Python:
 - Hofierka, J., Suri, M. (2002): The solar radiation model for Open
   source GIS: implementation and applications. International GRASS users
   conference in Trento, Italy, September 2002.
-  ([PDF](http://skagit.meas.ncsu.edu/~jaroslav/trento/Hofierka_Jaroslav.pdf))
+  ([PDF](https://web.archive.org/web/20030805000947/http://www.ing.unitn.it/~grass/conferences/GRASS2002/proceedings/proceedings/pdfs/Hofierka_Jaroslav.pdf))
 - Hofierka, J. (1997). Direct solar radiation modelling within an open
   GIS environment. Proceedings of JEC-GI'97 conference in Vienna,
   Austria, IOS Press Amsterdam, 575-584.

raster/r.terraflow/r.terraflow.html

@@ -252,7 +252,7 @@ <h2>AUTHORS</h2>
 
   <dt>Porting to GRASS GIS, 2002:
     <dd> <a href="http://www.daimi.au.dk/~large/">Lars Arge</a>,
-         <a href="http://fatra.cnr.ncsu.edu/~hmitaso/index.html">Helena Mitasova,</a>
+         Helena Mitasova,
          <a href="http://www.bowdoin.edu/~ltoma/">Laura Toma</a>.
 
     <dt>Contact: <a href="mailto:ltoma@bowdoin.edu "> Laura Toma</a></dt>

raster/r.terraflow/r.terraflow.md

@@ -202,8 +202,7 @@ Vitter](http://www.science.purdue.edu/jsv/), Rajiv Wickremesinghe.
 
 Porting to GRASS GIS, 2002:
 
-[Lars Arge](http://www.daimi.au.dk/~large/), [Helena
-Mitasova,](http://fatra.cnr.ncsu.edu/~hmitaso/index.html) [Laura
+[Lars Arge](http://www.daimi.au.dk/~large/), Helena Mitasova, [Laura
 Toma](http://www.bowdoin.edu/~ltoma/).
 
 Contact: [Laura Toma](mailto:ltoma@bowdoin.edu-)

raster/r.watershed/front/r.watershed.html

@@ -524,8 +524,8 @@ <h2>REFERENCES</h2>
 <i>GIS-based Stream Network Analysis for The Chagres River Basin,
 Republic of Panama</i>. <b>The Rio Chagres: A Multidisciplinary Profile of
 a Tropical Watershed</b>, R. Harmon (Ed.), Springer/Kluwer, p.83-95.<br>
-URL: <a href="http://fatra.cnr.ncsu.edu/~hmitaso/measwork/panama/panama.html">
-http://fatra.cnr.ncsu.edu/~hmitaso/measwork/panama/panama.html</a></li>
+URL: <a href="https://doi.org/10.1007/1-4020-3297-8_6">
+https://doi.org/10.1007/1-4020-3297-8_6</a></li>
 
 <li>McCool et al. (1987). <i>Revised Slope Steepness Factor for the Universal
 Soil Loss Equation</i>, <b>Transactions of the ASAE</b> Vol 30(5).</li>

raster/r.watershed/front/r.watershed.md

@@ -431,7 +431,7 @@ Display output in a nice way
   *GIS-based Stream Network Analysis for The Chagres River Basin,
   Republic of Panama*. **The Rio Chagres: A Multidisciplinary Profile of
   a Tropical Watershed**, R. Harmon (Ed.), Springer/Kluwer, p.83-95.  
-  URL: <http://fatra.cnr.ncsu.edu/~hmitaso/measwork/panama/panama.html>
+  URL: <https://doi.org/10.1007/1-4020-3297-8_6>
 - McCool et al. (1987). *Revised Slope Steepness Factor for the
   Universal Soil Loss Equation*, **Transactions of the ASAE** Vol 30(5).
 - Metz M., Mitasova H., Harmon R. (2011). *Efficient extraction of

scripts/r.fillnulls/r.fillnulls.html

@@ -111,11 +111,11 @@ <h2>REFERENCES</h2>
 GIS</i>, 9 (4), special issue on Integrating GIS and Environmental modeling,
 433-446.</li>
 
-<li><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/lmg.rev1.ps">Mitasova H.
+<li><a href="https://doi.org/10.1007/BF00893171">Mitasova H.
 and Mitas L. 1993</a>: Interpolation by Regularized Spline with Tension: I.
 Theory and Implementation, <i>Mathematical Geology</i> 25, 641-655.</li>
 
-<li><a href="http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps">Mitasova H.
+<li><a href="https://doi.org/10.1007/BF00893172">Mitasova H.
 and Hofierka L. 1993</a>: Interpolation by Regularized Spline with Tension:
 II. Application to Terrain Modeling and Surface Geometry Analysis,
 <i>Mathematical Geology</i> 25, 657-667.</li>

scripts/r.fillnulls/r.fillnulls.md

@@ -105,11 +105,11 @@ d.legend diff_rst_bilin
   of GIS*, 9 (4), special issue on Integrating GIS and Environmental
   modeling, 433-446.
 - [Mitasova H. and Mitas L.
-  1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/lmg.rev1.ps):
+  1993](https://doi.org/10.1007/BF00893171):
   Interpolation by Regularized Spline with Tension: I. Theory and
   Implementation, *Mathematical Geology* 25, 641-655.
 - [Mitasova H. and Hofierka L.
-  1993](http://fatra.cnr.ncsu.edu/~hmitaso/gmslab/papers/hmg.rev1.ps):
+  1993](https://doi.org/10.1007/BF00893172):
   Interpolation by Regularized Spline with Tension: II. Application to
   Terrain Modeling and Surface Geometry Analysis, *Mathematical Geology*
   25, 657-667.