The third phase of the monitoring project covers more than 260 km of the coastline from Mond River in the south to Daylam Port near the north end of Bushehr Province coastline. The study extent includes important areas such as Lavar, Bushehr Bay, Reeg and Genaveh. Figure 1. shows a Landsat image of the study coastline on the Persian Gulf.
Figure 1.Phase III study area (Landsat satellite image, 1990)
The study area of Phase III may be divided into two distinct sections: 1) the approximately 110 km stretch of coastline between Mond and Bushehr or the southern section, and 2) the approximately 150 km stretch of coastline between Bushehr and Deylam or the northern section. The southern section is mostly fronted by the Zagros Front Fault (ZFF) of Mond Anticline (Figure 2). There is a narrow strip of land, about 1 to 2 km wide, between the shoreline and the mountain in this section. The northern section, on the other hand, features a fluiviodeltaic system created by several rivers. The ZFF is located about 20 km inland of the coastline in this area (Figure 3) with the exception of an area between Genaveh and Imam Hassan which is fronted by Bang Mountain.
Figure 2 The southern section of Phase III study area (Landsat 1990)
Figure 3 shows the northern section of Phase III study area which extends from Bushehr Bay to Deylam area. This section features a fluiviodeltaic system created by several rivers including Helleh River, Pichan River, Shour River, Dareh Gap River, and DarehAbdari River. The Helleh river mouth is located at the north end of Bushehr Bay. It is a large river that drains Shapur and Dalaki basin in the Zagros Mountains. The basin has an area of approximately 10,000 km2 which drains into Shapur and Dalaki rivers with an average annual discharge of 530 and 425 million m3, respectively. These two rivers later join to form Helleh River which enters the Persian Gulf.
The delta formed at the mouth of Helleh River is a major morphological feature at the south end of the northern section of the study area. Deylam Bay located at the north end of this section is a relatively wide and shallow bay formed on the east side of the Mesopotamian Shallow Shelf (Zohreh River delta). There are several ports in the northern section of the study area including: Bushehr, Reeg, Genaveh, Imam Hassan, and Deylam. Bahregan Oil Terminal is located south of Imam Hassan Town, 40 km northwest of Genaveh, and serves Bahrgansar, Hendijan, Norooz, and Soroush oil fields. There is an approximately 15 km of shoreline between Genaveh and Emam Hassan that is backed by Bang Mountain.
Figure 3.The northern section of Phase III study area (Landsat 1990)
Table 1 Summary of Phase III Shoreline Classification