topic Master's Thesis: Geostatistical Simulation Help Needed in ArcGIS GeoStatistical Analyst Questions https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/master-s-thesis-geostatistical-simulation-help/m-p/357245#M729 <HTML><HEAD></HEAD><BODY><P>I'm currently busy with my Master's Thesis: <SPAN style="color: #e23d39;"><EM>Analyse the Propagation of Uncertainty from DEMs used for Hydrological Modelling</EM></SPAN>. I need to let everyone know upfront that I've got very little knowledge in geostatistics.</P><P></P><P>My masters closely following the approach used by Christian Venzin based on his Masters Thesis: <A href="http://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=1&amp;cad=rja&amp;uact=8&amp;ved=0CB4QFjAAahUKEwid9Jqm89jHAhVGWRQKHT6nCws&amp;url=http%3A%2F%2Fwww.geo.uzh.ch%2Ffileadmin%2Ffiles%2Fcontent%2Fabteilungen%2Fgis%2FGeocomputation%2FDocuments%2FMSc_Thesis_Venzin.pdf&amp;usg=AFQjCNEK2li4BxQjVmaCbTXLhrMSmTuevw"><SPAN style="color: #3334ca;">"Analyzing the Impact of High Resolution DEM Uncertainty on Hydrological Models Using a Parallel Computing Approach"</SPAN></A> , where Christian Venzin used a Process Convolution method. Christian Venzin concludes that due to the limitations with Process Convolution the next logical step is to use a <EM>Conditional Sequential Gaussian Simulation</EM> based on the paper written by Tomislav Hengl: <SPAN style="color: #3334ca;"><A href="http://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=1&amp;cad=rja&amp;uact=8&amp;ved=0CB0QFjAAahUKEwixvoWm9djHAhWLWxQKHXsuDCg&amp;url=http%3A%2F%2Fhydrol-earth-syst-sci.net%2F14%2F1153%2F2010%2Fhess-14-1153-2010.pdf&amp;usg=AFQjCNETNVb9sWZNAr4i-0j01z579dfd5w&amp;bvm=bv.101800829,d.d24"><SPAN style="color: #3334ca;">"On the uncertainty of stream networks derived from elevation data: the error propogation approach"</SPAN></A>.</SPAN></P><P></P><P><SPAN style="color: #303030;">I recently found out that Conditional Sequential Gaussian Simulation is not available within Geostatistical Analyst. I'm looking for advice from the community that understands Geostatistics and in particular Gaussian Simulations. I need to develop a similar approach to C.Venzin and T.Hengl using the available tools within Geostatistical Analyst to derive multiple realizations of a DEM (i.e. SRTM 30m and SRTM 90m DSM) and control points as true values. I then want to use the results from the simulations to derive watersheds and stream networks to derive probability distributions to quantify and visualise the uncertainty within the derived results as done by C.Venzin and T.Hengl.</SPAN></P><P></P><P><SPAN style="color: #303030;">Any advice in developing a geostatistical simulation approach using geostatistical analyst extension to derive similar results as C.Venzin and T.Hengl will truly be appreciated. Please provide explanations for the choice of the methods you propose so that I may better understand geostatistical uncertainty modelling.</SPAN></P><P></P><P><SPAN style="color: #303030;">Regards</SPAN></P><P><SPAN style="color: #303030;">Peter Wilson</SPAN></P></BODY></HTML> Wed, 02 Sep 2015 18:13:09 GMT PeterWilson 2015-09-02T18:13:09Z Master's Thesis: Geostatistical Simulation Help Needed https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/master-s-thesis-geostatistical-simulation-help/m-p/357245#M729 <HTML><HEAD></HEAD><BODY><P>I'm currently busy with my Master's Thesis: <SPAN style="color: #e23d39;"><EM>Analyse the Propagation of Uncertainty from DEMs used for Hydrological Modelling</EM></SPAN>. I need to let everyone know upfront that I've got very little knowledge in geostatistics.</P><P></P><P>My masters closely following the approach used by Christian Venzin based on his Masters Thesis: <A href="http://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=1&amp;cad=rja&amp;uact=8&amp;ved=0CB4QFjAAahUKEwid9Jqm89jHAhVGWRQKHT6nCws&amp;url=http%3A%2F%2Fwww.geo.uzh.ch%2Ffileadmin%2Ffiles%2Fcontent%2Fabteilungen%2Fgis%2FGeocomputation%2FDocuments%2FMSc_Thesis_Venzin.pdf&amp;usg=AFQjCNEK2li4BxQjVmaCbTXLhrMSmTuevw"><SPAN style="color: #3334ca;">"Analyzing the Impact of High Resolution DEM Uncertainty on Hydrological Models Using a Parallel Computing Approach"</SPAN></A> , where Christian Venzin used a Process Convolution method. Christian Venzin concludes that due to the limitations with Process Convolution the next logical step is to use a <EM>Conditional Sequential Gaussian Simulation</EM> based on the paper written by Tomislav Hengl: <SPAN style="color: #3334ca;"><A href="http://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=1&amp;cad=rja&amp;uact=8&amp;ved=0CB0QFjAAahUKEwixvoWm9djHAhWLWxQKHXsuDCg&amp;url=http%3A%2F%2Fhydrol-earth-syst-sci.net%2F14%2F1153%2F2010%2Fhess-14-1153-2010.pdf&amp;usg=AFQjCNETNVb9sWZNAr4i-0j01z579dfd5w&amp;bvm=bv.101800829,d.d24"><SPAN style="color: #3334ca;">"On the uncertainty of stream networks derived from elevation data: the error propogation approach"</SPAN></A>.</SPAN></P><P></P><P><SPAN style="color: #303030;">I recently found out that Conditional Sequential Gaussian Simulation is not available within Geostatistical Analyst. I'm looking for advice from the community that understands Geostatistics and in particular Gaussian Simulations. I need to develop a similar approach to C.Venzin and T.Hengl using the available tools within Geostatistical Analyst to derive multiple realizations of a DEM (i.e. SRTM 30m and SRTM 90m DSM) and control points as true values. I then want to use the results from the simulations to derive watersheds and stream networks to derive probability distributions to quantify and visualise the uncertainty within the derived results as done by C.Venzin and T.Hengl.</SPAN></P><P></P><P><SPAN style="color: #303030;">Any advice in developing a geostatistical simulation approach using geostatistical analyst extension to derive similar results as C.Venzin and T.Hengl will truly be appreciated. Please provide explanations for the choice of the methods you propose so that I may better understand geostatistical uncertainty modelling.</SPAN></P><P></P><P><SPAN style="color: #303030;">Regards</SPAN></P><P><SPAN style="color: #303030;">Peter Wilson</SPAN></P></BODY></HTML> Wed, 02 Sep 2015 18:13:09 GMT https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/master-s-thesis-geostatistical-simulation-help/m-p/357245#M729 PeterWilson 2015-09-02T18:13:09Z Re: Master's Thesis: Geostatistical Simulation Help Needed https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/master-s-thesis-geostatistical-simulation-help/m-p/357246#M730 <HTML><HEAD></HEAD><BODY><P>I'll add these ESRI statistical experts to ensure they see the thread in case they have suggestions:</P><P></P><P><A href="https://community.esri.com/migrated-users/11953">Eric Krause</A> </P><P><A href="https://community.esri.com/migrated-users/31672">Shaun Walbridge</A> </P><P></P><P></P><P>Chris Donohue, GISP</P></BODY></HTML> Wed, 02 Sep 2015 18:32:39 GMT https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/master-s-thesis-geostatistical-simulation-help/m-p/357246#M730 ChrisDonohue__GISP 2015-09-02T18:32:39Z