2.
Response
to
Comments
2.9
Individual
Responses
to
Comments
from
Organizations
These
cumulative
project
issues
and
the
implications
of
directional
wind
effects
were
all
considered
and
discussed
in
Section
4.M
of
the
Draft
EIR.
As
discussed
in
the
Draft
EIR
and
as
previously
noted,
wind
tunnel
test
data
from
prior
wind
analyses
for
the
proposed
Executive
Park
project
were
included
for
Baylands
development
only
for
portions
of
the
grid
not
affected
by
Baylands
development.
See
for
a
detailed
discussion
of
the
windsurfing
area
analyzed
in
the
Draft
EIR.
Responses
to
issues
raised
in
this
comment
and
others
regarding
the
physical
modeling
of
Project
Site
development
and
upwind
topography
are
provided
and
See
for
a
discussion
of
the
project
description
analyzed
in
the
Brisbane
Baylands
Draft
EIR
and
see
31
for
a
discussion
of
the
modeling.
Comment
notes,
under
the
Figure
12
caption,
many
changes
in
the
site
over
time
and
the
many
factors
that
could
affect
winds.
CEQA
requires
an
EIR
to
measure
the
changes
to
the
environment
that
will
result
from
a
proposed
project
and
determine
whether
those
environmental
effects
are
significant.
Such
an
analysis
was
performed
in
the
Draft
EIR.
Separate
models
were
built
for
the
existing
site,
the
Brisbane
Baylands
Specific
Plan,
and
each
variant.
Additional
models
of
areas
upwind
of
the
site
(to
the
Northwest,
WNW,
West,
and
Southwest)
also
were
built
to
allow
the
atmospheric
boundary
layer
of
each
approaching
wind
to
develop
correctly
before
it
reached
the
site.
It
is
important
to
note
that
the
structure
of
the
atmospheric
boundary
layer
can
be
characterized
by
factors
such
as
wind
speed
and
turbulence
as
well
as
air
temperature,
pressure,
and
humidity,
but
its
physical
attributes
are
all
that
the
boundary
layer
can
“remember”
after
passing
over
all
upwind
terrain
and
every
physical
object.
At
the
upwind
edge
of
the
site,
it
does
not
matter
how
or
where
these
characteristics
were
acquired.
As
it
passes
over
the
site,
the
boundary
layer
gradually
adjusts
its
structure
in
response
to
the
actual
surface
roughness
of
the
site
over
which
it
is
passing.
Although
solar
heating
on
the
site
also
affects
the
boundary
layer
and
can
change
the
stability
of
the
airflow,
such
heating
is
typically
associated
with
lower
wind
speeds
(i.e.,
Pasquill
stability
classes
A
and
B
are
defined
as
“very
unstable”
and
“unstable”,
respectively,
and
associated
with
lower
wind
speeds
–
less
than
11
mph.
These
less-stable
flows
can
be
modeled
in
the
wind
tunnel,
but
it
is
not
necessary
in
this
study
because
unstable
conditions
are
not
good
for
windsurfing.
As
noted
33,
Brisbane
Baylands
Final
EIR
2.9.4-12
May
2015