The frequency of flooding onto floodplainsthe lands situated adjacent

A-No,since drainage area decreases but channel slope both Increases and decreases,no positive correlation.

B-No, because when channel slope Increases the area of the 100-year floodplain boundary both Increases and decreases,no positive correlation.

C-100 year flood has 1% annual exceedance probability,so a 5 year flood has more frequency so it's probability of occurrence will also be more ,here 100 year flood =20*5 year flood , meaning 20*1% probability of occurrence=20% annual exceedance probability

D-No it is not sure because the inundation depends on various other cases such as season,climate, absorptive capacity of soil,channel slope.

E-Flooding occurs due to snowmelt runoff season but there is no dependency directly show

2) Snowmelt flooding and drainage area are both shown in Discussion and in the table and only absorptive capacity of soil is only shown in Discussion

3)a)No,since it is not known that how many people live near Jackson or porter river
b)No,Evans creek and Jackson river data is shown independently.
C)Yes, beacuse for Deer creek the flood plain boundary is 17 sq km and 1% annual exceedance probability is in flood plain boundary area

1. NO: The values of ACS doesn’t change as in proportion to river.

B. NO: The values of ACS doesn’t change as in proportion to FB

C: YES
A 100-year flood, for example, describes the level of floodwater expected to be equaled or exceeded once every 100 years.
 A 5-year flood, for example, describes the level of floodwater expected to be equaled or exceeded once every 5 years.
If a flood with a 1% chance of being equaled or exceeded in any given year (every 100 year) would be 20 times higher than if the same level needs to be compared every 5 years
Means now we have 20 times more value to compare about the same level

D. NO
inundated = covered with water
The frequency of flooding onto floodplains—the lands situated adjacent to rivers and other waterways—depends on factors such as climate, drainage area, channel slope, and the absorptive capacity of soil.

E: NO , The values of ACS doesn’t change as in proportion to SF
0.9-13
1.2-54
2.0-67
3.1 -8
5.5-3
12.7-16


2. Explicitly: clearly defined in Discussion ( means shouldnot be present in table discussion)
NO: In many regions, floods occur primarily during the snowmelt runoff season. + SF snowmelt floods mentioned in Table of Waterway Statistics
YES: such as climate, drainage area, channel slope, and the absorptive capacity of soil. + not defined in Table of Waterway Statistics
NO : such as climate, drainage area, channel slope, and the absorptive capacity of soil.+ discussed in table Table of Waterway Statistics


3.
Drainage area
J river: 330
P river: 210
It is true J area is more under flood plain boundary but nothing is mentioned about how people would be affected. It maybe possible that only few people affected along J river

NO

NO: no drains of one river into another river is mentioned

YES: Such a flood is also considered the 1% annual exceedance probability flood (i.e., a flood with a 1% chance of being equaled or exceeded in any given year)