validity of an eddy depending not only on its amplitude but also its
surface. (Note that, in this version, the component valid is redundant: one
can simply test the component out_cont%n_points.)

amplitude min_amp if the difference between innermost level from
local_extrema and ssh extremum is smaller. This is not only a
performance improvement but also an improvement of results: the
algorithm sometimes finds a contour at just min_amp when before it did
not find any: the bisection algorithm converged just below
min_amp. Also, as a result, if an outermost contour is found, it is
now necessarily of sufficient amplitude.

corner_window for all eddies in a two-dimensional array.

hard-coding them.

Remove component twice of type eddy, no longer needed.

the logic with flat_extr and noise_around is no longer needed.

set_all_outerm: the value of component suff_amp is modified inside the
first batch of get_1_outerm.

>= 0 everywhere outside of procedure local_extrema.

In test Nearby_extr, use output from Get_snapshot_region_1_noise since
we now use suff_amp in extremum shapefile.

than extr_map /= i.

Preparing to remove the coding of sufficient amplitude in extr_map: do
not use anywhere the sign of extr_map, use the component suff_amp of
the type eddy instead.

In program test_successive_overlap, I would rather not use default
values for namelist variables.

Add a larger test for successive_overlap, to have eddies wih
insufficient amplitude in the region.

Stdin to Input. Two input dir provided for in tests.json: $input_dir
and $large_input_dir.

Rename everywhere variable nearby_extr to outside_points to avoid
confusion with function nearby_extr. Rename file "nearby_extr.csv" to
"outside_points.csv".

In procedure nearby_extr, include in the selection extrema with
different sign, even if they do not have sufficient amplitude.

Bug fix in read_eddy: use the value of read attribute to define
e%interpolated.

procedure set_all_outerm. The idea is that, in this branch,
nearby_extr will eventually include extrema depending not only on them
having sufficient amplitude but also on their cyclonicity. Both pieces
of information cannot be simply encoded in extr_map.

instead of defining the component ssh to the ssh of the extremum or to
the ssh of the outermost contour, use a missing value flag
(1e4). Also, when radius4 >= 2 and the max speed contour is the
outermost contour, use missing value flag in the ssh component of max
speed contour instead of ssh on outermost contour. This makes clearer
output.

Add function null_ssh_contour.

In procedure get_1_outerm, simplify the comparison of level_try and
level_good. So we do not need any longer the dummy argument
ssh_extremum.

to out_cont and speed_cont (shorter names).

set_all_outerm. Thus, we have the clearer intent(out) for argument s
of set_all_outerm. Also, this prepares a possible replacement of
set_all_outerm by a procedure from the Topology toolkit.

Create test program for procedure set_all_outerm.

with some components intent(in) and one component intent(out) was less
clear. Also, replace argument ind_targ_extr by argument i. This is
simpler both in get_1_outerm and in set_all_outerm.

There is now no need to use an eddy in test_get_1_outerm.

set_all_outerm, for clarity.