-
Notifications
You must be signed in to change notification settings - Fork 4
/
world_salinity_db.html
157 lines (130 loc) · 3.93 KB
/
world_salinity_db.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
<head>
<title>World ocean salinity database</title>
<link href="style.css" rel="stylesheet" type="text/css">
<!-- Yandex.Metrika counter -->
<script type="text/javascript" >
(function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)};
m[i].l=1*new Date();k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)})
(window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym");
ym(28716631, "init", {
clickmap:true,
trackLinks:true,
accurateTrackBounce:true,
webvisor:true
});
</script>
<noscript><div><img src="https://mc.yandex.ru/watch/28716631" style="position:absolute; left:-9999px;" alt="" /></div></noscript>
<!-- /Yandex.Metrika counter -->
<script language="javascript" type="text/javascript">
var wosDB;
var getJSON = function(url, callback) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'json';
xhr.onload = function() {
var status = xhr.status;
if (status === 200) {
callback(null, xhr.response);
} else {
callback(status, xhr.response);
}
};
xhr.send();
};
getJSON('/online_utils/wosdb_lon_lat_sty.json',
function(err, data) {
if (err !== null) {
console.log(err);
} else {
wosDB = data;
onSearch();
}
});
function getDiv05(val, max) {
var result = Math.trunc(val);
result += 0.5;
if (result > max) {
result -= 1;
}
return result;
}
function getNearestKey(key, minKey, maxKey, step, db) {
var t_key = key;
while ((t_key < maxKey) && (!(t_key.toString() in db))) {
t_key += step;
}
if (!(t_key.toString() in db)) {
t_key = key;
while ((t_key > minKey) && (!(t_key.toString() in db))) {
t_key -= step;
}
}
return t_key;
}
function onSearch() {
t_lt = getDiv05(document.getElementById("lat_deg_input").value, 89.5);
t_ln = getDiv05(document.getElementById("lon_deg_input").value, 179.5);
ln_key = getNearestKey(t_ln, -179.5, 179.5, 1, wosDB);
lt_key = getNearestKey(t_lt, -89.5, 89.5, 1, wosDB[ln_key.toString()]);
ln_key_s = ln_key.toString();
lt_key_s = lt_key.toString();
document.getElementById("s_PSU_out").innerText = wosDB[ln_key_s][lt_key_s].toFixed(3);
linkText = "LAT: " + lt_key_s + ", LON: " + ln_key_s;
linkLink = "https://www.google.com/maps/search/?api=1&query=" + lt_key_s + "," + ln_key_s;
document.getElementById("npoint_out").innerHTML = '<a href="' + linkLink + '">' + linkText + '</a>';
}
</script>
</head>
<body>
<h1>World ocean salinity database</h1>
<hr>
<i>Warning! All the salinity data presented in this demo are taken from the NOAA World
ocean database<a href="#footnote1">[1]</a> for educational purposes only!<br>
Here are presented only salinity on the water surface</i>
<br>
<br>
<table id="in_values_tbl">
<tr>
<th>Parameter</th>
<th>Value</th>
<th>Range</th>
<th>Units</th>
</tr>
<tr>
<td>Geographic longitude</td>
<td><input type="number" step="0.5" value="48.5" min="-175" max="175" name="lon_deg" id="lon_deg_input"></td>
<td>-180 .. 180</td>
<td>°</td>
</tr>
<tr>
<td>Geographic latitude</td>
<td><input type="number" step="0.5" value="44.5" min="-85" max="85" name="lat_deg" id="lat_deg_input"></td>
<td>-90 .. 90</td>
<td>°</td>
</tr>
<tr>
<td>Nearest point (lon, lat)</td>
<td><b><a id="npoint_out"></a></b></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Salinity</td>
<td><b><a id="s_PSU_out"></a></b></td>
<td>0 .. 42</td>
<td>PSU</td>
</tr>
</table>
<br>
<hr>
<div>
<button id="search" onclick="onSearch()">Search</button>
</div>
<ol>
<li id="footnote1"><a href="https://www.nodc.noaa.gov/OC5/indprod.html">NOAA World Ocean Database and World Ocean Atlas Series</a>.
</ol>
<hr>
(C) Alek Dikarev, 2020<br>
For bug reports, suggestions and questions, please feel free to <a href="https://github.com/AlekUnderwater">reach me</a><br>
</body>
</html>