Here - Meta Marketing e Eventos

More documents

Recommendations

Info

22 nd Salt Water Intrusion Meeting: Salt Water Intrusion in Aquifers: Challenges and PerspectivesLOCAL CLIMATE PROOF FRESH GROUNDWATER SUPPLY: ANADAPTATION WATER MANAGEMENT STRATEGY WITH IMPACT?OUDE ESSINK, G.; DELSMAN, J.; PAUW, P.; De LOUW, P.; Van BAAREN, E.;FANECA SANCHEZ, M.gualbert.oudeessink@deltares.nlDELTARESPOBox 85467, 3508 AL Utrecht, The NetherlandsAbstract. In the Dutch coastal zone, a severe internal salinisation of the groundwater systemcan easily occur as huge volumes of brackish up to saline groundwater are already present.In addition, salt water wedges encroach the river and estuarine branches, leading to externalsalinisation of the surface water system. Both processes threaten sectors such as agriculture,drinking water supply and nature. On top, several physical drivers will jeopardize our(future) water system even more, viz. 1. the autonomous internal salinisation due to pasthydraulic head differences in the top system (e.g. high mean sea level relative to low-lyingpolder water levels), 2. climate change (including sea level rise), 3. land subsidence (up to 1m per century), and 4. operational water strategies. To make The Netherlands Climate Prooffor the coming century, fresh water supply is (next to safety against flooding) one of the toppriorities in the Delta Programme and in the Dutch National Water Plan. National adaptativestrategies are developed to make this happen. We believe that also a combination of localadaptative strategies with the focus on the groundwater system can make fresh water supplypossible on a regional scale in a future setting. The following steps towards this ClimateProof Fresh Water Supply setting can be identified: (a) better understanding the presentwater system, followed by (b) assessing the impact of future climate and anthropogenicstresses to the (ground)water system. The third step is (c) coming up with feasible, robust andflexible strategies for future water management. In this presentation, some local strategieswill be shown, illustrated with numerical models on local-regional-national scale,(innovative) monitoring campaigns (e.g. airborne geophysics) up to stakeholderparticipations. The location of the showcases is in the Dutch Southwestern Delta, a low-lyingsaline environment where climate proof fresh groundwater supply strategies have highpotentials.Keywords: salt water intrusion, climate proof, fresh water supply, modelling, climate change,water management, adaptive strategies18
H22 nd Salt Water Intrusion Meeting: Salt Water Intrusion in Aquifers: Challenges and PerspectivesMODELING OF HISTORICAL EVOLUTION OF SALT WATERDISTRIBUTION ON THE RIGHT BANK OF THE SCHELDT IN THEANTWERP HARBORLEBBE, Luc 1 ; ADAMS, R. 2 ; DE DECKERE, E. 3luc.lebbe@ugent.be1. UGENT Krijgslaan 281 (S8), BE9000 Gent (Belgium)2. IMDC3. Antwerp Port AuthorityAbstract. In the framework of a study against the salinization of groundwater bodies in theharbor of Antwerp a density-dependent groundwater modeling was performed. During thenineteenth and the twentieth century the harbor expanded constantly from the city of Antwerptowards the north. This expansion took place in the polders along the Scheldt at 50 to 60 kmfrom the North Sea. <strong>Here</strong>, the Scheldt is still subject to tide and the water quality is brackish.This area is the only of the Flemish coastal plain where the depth of the fresh-salt waterinterface was not yet mapped. The present paper discusses the historic and ongoing densitydependent groundwater flow of this area and the mapping of the fresh-saltwater distributionusing both modeling and groundwater quality measurements. In order to obtain the presentday’s distribution the historical evolution of salt water distribution on the right bank wassimulated. The simulated period starts around the middle of the fourteenth century and issubdivided in five different stress periods, each defined by boundary conditions. During thefirst and longest stress period, which lasts five hundred years, the central part of the modeledarea which is now occupied by the harbor, was then occupied by the polders. In the poldersthe sediments of the phreatic aquifer were initially filled by connate brackish water. In thisarea the recharge of the groundwater reservoir was hampered by a dense network of shallowdrainage canals, causing a slow expulsion of the connate brackish water, while at the rightbank of the Scheldt, there was an infiltration of brackish water especially during the hightides. This water flows partially towards the low-lying polders developing a brackishgroundwater body under the polders along the right bank of the Scheldt. During the fourconsecutive stress period the expansion of the Antwerp harbor is schematized. During thisexpansion the docks were excavated and the surrounding terrains were raised. Due to thisraise the recharge with fresh water increased and enhanced the expulsion of connate brackishwater. The enhanced recharge on the raised terrains along the right banks of the Scheldtcauses a change in groundwater flow direction. This recharged fresh water flows in thedirection of the Scheldt and expulses the brackish water body.Keywords: historical evolution salt water distribition; interaction ground water surface water19
Page 3 and 4: SWIM22 - 22 nd Salt Water Intrusion
Page 5 and 6: Local Supporting Organizing TeamMar
Page 7 and 8: Peter StuyfzandKiwa Water Research,
Page 9 and 10: PrefaceWelcome to the 22 nd Salt Wa
Page 11 and 12: SUMMARYKeynote Lectures pg 13Coasta
Page 13: Groundwater hypersalinization in a
Page 16 and 17: Hydrostratigraphic Study of Itaipua
Page 18 and 19: Keynote Lectures
Page 20 and 21: 22 nd Salt Water Intrusion Meeting:
Page 35: Effects of sea levelrise and climat
Page 40 and 41: Hans Sulzbacher 1 ; Helga Wiederhol
Page 43: Resistivity [Ωm]0.1 1 10 100 10000
Page 48 and 49: 2. METHODS Figure 1a.
Page 50 and 51: 4. DISCUSSION AND CONCLUSIONSREFERE
Page 57 and 58: METHODS 51
Page 59 and 60: DISCUSSION AND CONCLUSIONS
Page 67 and 68: 2. RESULTS, HOW TO GET THERE AND WH
Page 70 and 71: STUDY OF THE SALTWATER-FRESHWATER I
Page 73 and 74: 4. DISCUSSION5. CONCLUSIONS67
Page 75:
Hydrogeochemical and isotopicmethod
Page 78 and 79:
22 nd Salt Water Intrusion Meeting:
Page 80 and 81:
Figure 1 Location map of study area
Page 82 and 83:
Therefore, it was clarified that th
Page 84 and 85:
Page 86 and 87:
Page 88 and 89:
GROUNDWATER HYPERSALINIZATION IN A
Page 90:
3. RESULTS AND DISCUSSIONS
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
GROUNDWATER ARTIFICIAL RECHARGE IN
Page 141 and 142:
2. GEOLOGICAL SETTING 3. H
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
145
Page 153 and 154:
147
Page 155 and 156:
1. INTRODUCTION 2. MATERIALS AND ME
Page 157 and 158:
4. CONCLUSIONS
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173:
New approaches onmodelling (general
Page 176 and 177:
Page 178 and 179:
Page 180 and 181:
Page 182 and 183:
Page 184 and 185:
Page 186 and 187:
Page 188 and 189:
Page 190 and 191:
Page 192 and 193:
Page 194 and 195:
Ruben Caljé 1 ; Frans Schaars 1 ;
Page 196 and 197:
Figure 2: The modeled interface dep
Page 199:
Selected case studies
Page 202 and 203:
CONCEPTUAL MODEL OF DAR ES SALAAM Q
Page 204 and 205:
198
Page 206 and 207:
Page 208 and 209:
Page 210 and 211:
1. INTRODUCTION 2. HYDROGEOCHEMI
Page 212 and 213:
1,61,41,210,80,60,40,20H-3 (TU)Luiz
Page 214 and 215:
Page 216 and 217:
Saltwater intrusionsAquifer partly
Page 218 and 219:
U4Quakenbrück212
Page 220 and 221:
Page 223:
Understanding of salinewater hydrod
Page 226 and 227:
Page 228 and 229:
Page 230 and 231:
Page 232 and 233:
Page 234 and 235:
Page 236 and 237:
Marie Perriquet 1,2 ;Tiernan Henry
Page 238 and 239:
232
Page 240 and 241:
ACKNOWLEDGEMENTREFERENCES234
Page 242 and 243:
Page 244 and 245:
Page 246 and 247:
Page 248 and 249:
Page 250 and 251:
Page 252 and 253:
Page 254 and 255:
Page 256 and 257:
Page 258 and 259:
Page 260 and 261:
1. INTRODUCTION2. EXAMPLE: UPCONING
Page 262 and 263:
REFERENCES256
Page 264 and 265:
258
Page 266 and 267:
Figure 1. Computed density and mole
Page 268 and 269:
262
Page 270 and 271:
Page 272 and 273:
Depth (m)22 nd Salt Water Intrusion
Page 274 and 275:
Page 276 and 277:
Page 278 and 279:
Page 280 and 281:
Page 282 and 283:
Page 284 and 285:
Page 286 and 287:
Page 288:
show all

Here - Meta Marketing e Eventos

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?