Conceptual modeling - Revision history

Klmos: /* Contaminant distribution and dynamics */

2019-07-04T08:50:54Z

‎Contaminant distribution and dynamics

Klmos: /* Contaminant distribution and dynamics */

2019-07-04T08:22:36Z

‎Contaminant distribution and dynamics

Klmos: /* Contaminant distribution and dynamics */ Integrated 2D-3D coupled model

2019-07-03T13:24:04Z

‎Contaminant distribution and dynamics: Integrated 2D-3D coupled model

Klmos: /* Conceptual model development */

2019-07-03T13:19:23Z

‎Conceptual model development

Klmos: /* Conceptual model development */

2019-07-03T09:59:35Z

‎Conceptual model development

Klmos: /* Contaminant distribution and dynamics */

2019-06-26T13:02:21Z

‎Contaminant distribution and dynamics

Klmos: /* Contaminant distribution and dynamics */

2019-06-26T13:01:35Z

‎Contaminant distribution and dynamics

Klmos: /* Conceptual model development */ Small updates in the flow field section

2019-06-26T12:59:38Z

‎Conceptual model development: Small updates in the flow field section

Klmos: /* Conceptual model development */

2019-06-26T12:45:29Z

‎Conceptual model development

Klmos: /* Contaminant distribution and dynamics */ Included re-evaluation of Akacievej report and added some info about it

2019-06-26T12:32:00Z

‎Contaminant distribution and dynamics: Included re-evaluation of Akacievej report and added some info about it

@@ Line 85: / Line 85: @@
 * [[:Media:Akacievej-Data-og_modelgrundlag_for_revudering_af_afværgeanlæg.pdf|Akacievej - Data- and modeling basis for the re-evaluation of the remediation system (PDF)]]
-This served as input for combined 2D and 3D modeling of the plume dynamics, which are further described in the report.
+This served as input for combined 2D and 3D modeling of the plume dynamics, which are further described in the report and in [[ Example: Akacievej | this chapter ]].
 The detailed 3D model of the source zone, that was previously calibrated to the tracer tests, was employed to simulate the evolution of the contamination distribution and to estimate the contaminant flux out of the source zone.
 This contaminant flux was used as input for a plume-scale 2D model to investigate the long-term effects of the remediation system on the plume propagation.

@@ Line 85: / Line 85: @@
 * [[:Media:Akacievej-Data-og_modelgrundlag_for_revudering_af_afværgeanlæg.pdf|Akacievej - Data- and modeling basis for the re-evaluation of the remediation system (PDF)]]
-[[File:coupled2D-3Dmodel.png|500px|thumb|Fig.4: Coupled 3D source zone model and 2D plume model.]]
+This served as input for combined 2D and 3D modeling of the plume dynamics, which are further described in the report.
 The detailed 3D model of the source zone, that was previously calibrated to the tracer tests, was employed to simulate the evolution of the contamination distribution and to estimate the contaminant flux out of the source zone.
 This contaminant flux was used as input for a plume-scale 2D model to investigate the long-term effects of the remediation system on the plume propagation.

@@ Line 87: / Line 87: @@
 [[File:coupled2D-3Dmodel.png|500px|thumb|Fig.4: Coupled 3D source zone model and 2D plume model.]]
-This served as input for combined 2D and 3D modeling of the plume dynamics, which are further described in the report.
+This served as input for combined 2D and 3D modeling of the plume dynamics (see Fig. 4), which are further described in the report.
 The detailed 3D model of the source zone, that was previously calibrated to the tracer tests, was employed to simulate the evolution of the contamination distribution and to estimate the contaminant flux out of the source zone.
 This contaminant flux was used as input for a plume-scale 2D model to investigate the long-term effects of the remediation system on the plume propagation.

@@ Line 84: / Line 84: @@
 An updated map of the contaminant distribution was made and documented in the following report (in Danish):
 * [[:Media:Akacievej-Data-og_modelgrundlag_for_revudering_af_afværgeanlæg.pdf|Akacievej - Data- and modeling basis for the re-evaluation of the remediation system (PDF)]]
 This served as input for combined 2D and 3D modeling of the plume dynamics, which are further described in the report.

@@ Line 11: / Line 11: @@
+|
 == Conceptual model development ==
-This chapter describes the development of a conceptual model for the Akacievej field site based on a set of field measurements and modeling.
+This chapter describes the development of a conceptual model for the [[The Akacievej field site|Akacievej field site]] based on a set of field measurements and modeling.
 [[File:Geology_Akacievej_GEO_extended.png|thumb|500px|Fig.1: Geology at the Akacievej site.]]

@@ Line 56: / Line 56: @@
 === Contaminant distribution and dynamics ===
 The PCE concentrations at the Akacievej site were monitored in the pumped water from the remediation well (PB) since the installation of the remediation system.
-Additionally, several sampling rounds were done in the period from 2014-2016 and 2018 using different sampling techniques (separation pumping, bladder pump, snap samplers, diffusion cells).
+Additionally, several sampling rounds were done in the period from 2014-2016 and 2018 using different sampling techniques.
 <!-- The easiest and still reliable method was to use a bladder pump -->
 The wells were also sampled under different conditions:
@@ Line 64: / Line 64: @@
 This showed strong dynamics of the PCE distribution in the aquifer - the pumping had a strong influence on the observed concentrations in the wells at Akacievej.
-The different depth-discrete sampling methods that were used at the Akacievej site are described in detail in the following report (in Danish):
+The different depth-discrete sampling methods that were used at the Akacievej site (separation pumping, bladder pump, snap samplers, diffusion cells) are described in detail in the following report (in Danish):
 * [[:Media:Sammenligning_af_niveauspecifikke_prøvetagningsmetoder.pdf |Comparison of depth-discrete sampling methods and contaminant measurements at Akacievej (PDF)]]

@@ Line 19: / Line 19: @@
 A cross section of the geologic model at the Akacievej site is shown in Figure 1 and described in the Chapter [[Geology and properties of limestone]].
-[[File:Heads_Akacievej_2015.png|500px|thumb|Fig.2: Flow field at Akacievej determined by a synchronous head leveling campaign in spring 2015.]]
+[[File:Heads_Akacievej_2015.png|500px|thumb|Fig.2: Flow field at Akacievej determined by a synchronous hydraulic head leveling campaign in spring 2015.]]
 === Flow field and isopotential map ===
-To determine, where contaminants may migrate, it is important to have knowledge about the local flow field.
+To determine the potential migration pathways of contaminants, it is important to have knowledge of the local groundwater flow field.
-This can be approximated by the hydraulic head distribution in the area.
+A good indication is given by the hydraulic head distribution in the area and an isopotential map.
 At the Akacievej site, several synchronous hydraulic head measurement campaigns were done to determine the hydraulic head distribution in the larger plume area and to assess the temporal variation of the flow field.
 Therefore, the hydraulic heads in the boreholes in a larger area around the Akacievej site were sounded on the same day using dipmeters.
-For the head measurements at the Akacievej site, the remediation system at the site and the wells of the Fløng waterworks were switched off in advance before measuring the heads.
+For the head measurements at the Akacievej site in 2015, the remediation system at the site and the wells of the Fløng waterworks were switched off in advance before measuring the heads.
 The measured heads were included in a geographic information system (GIS) and an isopotential map was created.
 It can be beneficial to include wells in an area larger than the area of immediate interest (e.g. plume), to get a good picture of the regional groundwater flow and to allow the choice of a model domain with little influence of the boundaries on the flow field in the area of interest.
 Figure 2 shows the isopotential map that was created for the area around the Akacievej field site in 2015.
 === Determination of aquifer parameters ===

@@ Line 49: / Line 49: @@
 <!-- '''Tracer test description -- use from report''' -->
-[[File:PCE_distribution_wRemediation.png|500px|thumb|Fig.3: PCE distribution at Akacievej during remediation]]
+[[File:PCE_distribution_wRemediation.png|500px|thumb|Fig.3: PCE distribution at Akacievej during remediation (winter 2014). The vertical PCE distribution along a central flow line through the plume is shown.]]
 === Contaminant distribution and dynamics ===